eng Multiple punch and die assembly providing hand disassembly, punch length adjustment and replacement By www.freepatentsonline.com Published On :: Tue, 01 Jun 2010 08:00:00 EDT A multiple punch and multiple die assembly has a workpiece protector which is a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece. Full Article
eng Multiple punch and die assembly providing hand disassembly, punch length adjustment and replacement By www.freepatentsonline.com Published On :: Tue, 10 Apr 2012 08:00:00 EDT A multiple punch and multiple die assembly has a workpiece protector as a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece. Full Article
eng Multiple punch and die assembly providing hand disassembly, punch length adjustment and replacement By www.freepatentsonline.com Published On :: Tue, 18 Jun 2013 08:00:00 EDT A multiple punch and multiple die assembly has a workpiece protector as a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece. Full Article
eng Turbocharger arrangement for an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A turbocharger arrangement in an internal combustion engine is provided. The turbocharger arrangement includes a turbocharger housing surrounding a sealed inner space and a shaft extending through the turbocharger housing. The turbocharger arrangement further includes a turbine wheel arranged on the shaft and driving a compressor unit, a bearing arrangement mounting the shaft in the turbocharger housing, an oil supply device lubricating the bearing arrangement, and a pressure changing unit in fluidic communication with the sealed inner space configured to adjust the pressure in the sealed inner space based on engine operating conditions. Full Article
eng Camera module with threadless lens barrel engagement design By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A camera module with a lens barrel containing a lens, and a lens carrier that slidably receives the lens barrel. Each of the exterior surface of the lens barrel and the interior surface of the lens carrier include a seating surface formed thereon. One of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of protrusions for controlling the relative position of the lens barrel and the lens carrier. The other of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of channels that are sized and arranged so as to slidably receive the protrusions to allow for the lens barrel to be slid into the lens carrier. The channels also each include a transverse section to allow the lens barrel to be pivoted about an optical axis of the lens barrel. Full Article
eng Heat dissipation device of light engine with fan module and heat sink By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A heat dissipation device of a light engine for a projector has a housing, a fan module, a light engine and a heat sink. The light engine is positioned in the housing and connected to the heat sink. The heat sink is positioned out of the housing. The housing has a fan-enclosed flow channel attached on an outer surface of the housing. The fan module is guided by the fan-enclosed flow channel to the heat sink to enhance heat dissipation efficiency of the light engine for the projector. Full Article
eng Method to tune emission wavelength of semiconductor laser diode By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method to tune an emission wavelength of a laser diode (LD) finely is disclosed. The method first controls a temperature of the etalon filter in T1 or T2, where the transmittance of the etalon filter becomes 40 to 50%, assuming a height between the peak and the bottom of the periodic transmittance to be 100%, at the grid wavelength λ1 or λ2, respectively. Then, the temperature of the LD is adjusted such that the intensity of light emitted from the LD and transmitted through the etalon filter becomes 40 to 50%. Full Article
eng Device for cutting to length and feeding spine strips for a case maker By www.freepatentsonline.com Published On :: Tue, 12 Aug 2014 08:00:00 EDT In a device for cutting to length and feeding spine strips (3) for a case maker (1), a center strip conveying device (30) is provided that advances the spine strip material (5, 6) by the spine width (BS) transverse to the board feed direction (23) in a cyclic fashion. The spine width (BS) can be changed from work cycle to work cycle without accumulating additional waste. This can be realized because the previously required width sizing on the material web is eliminated. Full Article
eng Very high strength swivel anchor By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method and an anchor for supporting items on a substrate such as drywall. The anchor comprises a structure configured to carry the anchoring element in a minimal cross section configuration through an insertion hole and to effect a first expansion. The anchor further comprises an adjustable cap member configured to be moved to fixedly position the anchoring element to the non-accessible side of the substrate. The anchoring element comprises a base channel member, a top channel member, and a connector-pivoting element configured to pivotally connect the top channel member to the base channel member. The top channel member is configured to be nested with the base channel member in the minimal cross section configuration and to be pivotally rotatable via the connector pivoting element in the plane parallel to the non-accessible side of the wall, with the pivotal rotation of the top channel member providing the second expansion. Full Article
eng Premium class aircraft passenger suite By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A premium class passenger suite that includes a main seat positioned in the suite together with separate bed. The bed has a flexible mattress of predetermined dimensions and is movable between a stowed position to one side of the main seat and a deployed position above and separate from the main seat. A drive apparatus is provided for driving the bed between the stowed and deployed positions. The main seat is configured to be movable between a seating position when the bed is stowed, and a stowed position with a lowered seat back when the bed is deployed for use. Full Article
eng Mutualistic engine controller communicating with printer non-volatile memory By www.freepatentsonline.com Published On :: Tue, 18 Mar 2014 08:00:00 EDT A printing device includes at least one printing engine that has actuators and sensors. At least one engine controller is operatively connected to the printing engine, the engine controller uses software to control operations of the printing engine. At least one non-volatile memory is operatively connected to the engine controller. The non-volatile memory stores values used by the engine controller to control operations of the printing engine. Further, at least one adapter card is operatively connected to the non-volatile memory and to the actuators and sensors. The adapter card stores data and receives sensor feedback from the sensors. The adapter card uses the data and the sensor feedback to control the actuators by bypassing the engine controller when communicating with the actuators. The adapter card provides adapter card feedback to the non-volatile memory. Full Article
eng Casting aluminum alloy and internal combustion engine cylinder head By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%. Full Article
eng Spark plug for internal combustion engine and method for manufacturing same By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT The spark plug has a configuration satisfying the relationships of B≧0.7A and 0.3 mm≦A≦0.6 mm, where B is an axial thickness along the central axis line Q of the weld portion formed between the base material electrode and the noble-metal chip, and A is an axial distance along the central axis line Q between the intersection points P3 and X. The intersection point P3 is a point at which a phantom axis line radially distant from the central axis line Q by D/2 (D being a diameter of the noble-metal chip) intersects with the boundary line between the weld portion and the noble-metal chip. The intersection point X is a point at which an extension of the contour line of the base material electrode in the vicinity of the weld portion intersects with a boundary line between the weld portion and the base material electrode. Full Article
eng Oxidation catalyst for treating the exhaust gas of a compression ignition engine By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate. Full Article
eng Device for locking an opening part of a jet engine nacelle with respect to a fixed part, and nacelle equipped with such a device By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT This device for locking an opening part (9) of a jet engine nacelle with respect to a fixed part (7, 17) comprises: means (13, 16) for locking said opening part (9) with respect to said fixed part (7, 17), means for actuating (21) these locking means that are mounted such that they can move on said opening part (9) between a closed position, in which they enable said locking means (13, 16) to be immobilized, and an open position, in which they enable these locking means (13, 16) to be released. Said actuating means comprise gripping means (21). This device comprises means (41, 43) for immobilizing, in the open position, said gripping means (21) with respect to said opening part (9) at least in the direction of movement of said opening part (9). Full Article
eng System and method for modifying a gas turbine engine in the field By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A system and method for modifying a gas turbine engine in the field to drill a series of cooling holes in a turbine rotor disk made of a superalloy. A portable field repair system includes a stand configured to receive, support, and position a turbine rotor disk, a drill having a self-feeding spindle and configured to automatically drill a predetermined depth through a superalloy and to automatically stop upon completion, a drill guide configured to coordinate the drill with a plurality of radial axes associated with a precise hole pattern to be cut and a drill mount configured to mechanically couple the drill to the drill guide and to position the drill during the modification of the gas turbine engine turbine rotor disk. Full Article
eng Seal assembly including grooves in a radially outwardly facing side of a platform in a gas turbine engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A seal assembly between a disc cavity and a turbine section hot gas path includes a stationary vane assembly and a rotating blade assembly downstream from the vane assembly and including a plurality of blades that are supported on a platform and rotate with a turbine rotor and the platform during operation of the engine. The platform includes a radially outwardly facing first surface, a radially inwardly facing second surface, a third surface, and a plurality of grooves extending into the third surface. The grooves are arranged such that a space is defined between adjacent grooves. During operation of the engine, the grooves guide purge air out of the disc cavity toward the hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path. Full Article
eng Retention device for a composite blade of a gas turbine engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A liner for a composite blade of a gas turbine engine includes a metallic shoe, operable substantially to encase a blade root of a composite blade and defining an inner surface and an outer surface. The liner also includes a retention lug formed on the shoe and has inner and outer keys that project from opposed portions of the inner and outer surfaces. The keys engage corresponding recesses on a dovetail slot and a blade root to resist axial displacement of the composite blade. Full Article
eng Mirror for the EUV wavelength range, projection objective for microlithography comprising such a mirror, and projection exposure apparatus for microlithography comprising such a projection objective By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A mirror for the EUV wavelength range (1) having a layer arrangement (P) applied on a substrate (S), the layer arrangement having a periodic sequence of individual layers, where the periodic sequence has at least two individual layers—forming a period—composed respectively of silicon (Si) and ruthenium (Ru). Also disclosed are a projection objective for microlithography (2) including such a mirror, and a projection exposure apparatus for microlithography having such a projection objective (2). Full Article
eng LINE LENGTH AND JUSTIFICATION INDICATOR FOR TYPESETTING MACHINES By www.freepatentsonline.com Published On :: Tue, 16 Oct 1973 08:00:00 EDT A line length remainder and justification indicator device for use with a line composing machine in which the device employs a continuously rotating drum having preselected values of line remainder and justification information indicated thereon. A controlled intermittent flash illuminates only the desired information. Full Article
eng Electromagnetic interface secured by using an indirect compression force to slidably engage first and second force transfer features By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT In an example embodiment, an electromagnetic interface can comprise: a first component comprising a first waveguide channel, a first interface surface, and a first force transfer feature; a second component comprising a second waveguide channel, a second interface surface, and a second force transfer feature; and a fastener that can be configured to force the first force transfer feature in sliding engagement with the second force transfer feature. The first and second force transfer features can be configured to interoperate to create an indirect force holding the first interface surface in contact with the second interface surface and holding the first waveguide channel in alignment with the second waveguide channel. Full Article
eng High strength ultra-high molecular weight polyethylene tape articles By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST Processes for the production of high strength polyethylene tape articles from high strength ultra-high molecular weight multi-filament yarns, and to the tape articles, fabrics, laminates and impact resistant materials made therefrom. Full Article
eng Battery pack having improved strength By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Disclosed herein is a battery pack including a battery cell array including two or more battery cells, each of which has an electrode assembly of a cathode/separator/anode structure disposed in a battery case together with an electrolyte in a sealed state, arranged in a lateral direction, a protection circuit module (PCM) connected to an upper end of the battery cell array to control an operation of the battery pack, a pack case in which the battery cell array and the protection circuit module are disposed, and a plate-shaped reinforcing member mounted between the pack case and the battery cell array to increase mechanical strength of the pack case. Full Article
eng Automatic start/stop device for engine-driven power generator By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST Starting and stopping an engine is automatically controlled based on a load without using a relay. An inverter engine-driven power generator has an alternator, a rectifying circuit, a DC/DC converter, and an inverter circuit. A load detection circuit is connected to an output of the inverter circuit in parallel. A load detection line of the load detection circuit is connected to an output line of the inverter circuit in parallel via resistors. A power supply formed of a battery is connected to the load detection line. A decision circuit outputs a load detection signal when a current having a preset value or more flows through the load detection line. A drive/stop CPU starts the engine in response to the load detection. The resistors are set at a resistance value which does not influence a load to which a generator output is supplied. Full Article
eng Automatic start and stop of a portable engine driven power source By www.freepatentsonline.com Published On :: Tue, 25 Nov 2014 08:00:00 EST The present embodiments provide a control system and method that is able to automatically start and/or stop a portable engine-driven power source. For example, in one embodiment, a system includes an engine-driven power source having an engine, a compressor driven by the engine, a sensor configured to generate a first signal indicative of a demand for air pressure from the compressor and a second signal indicative of no demand for air pressure from the compressor. The engine-driven power source also includes a controller configured to stop the engine in response to the second signal. Full Article
eng Generator drive system for an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A generator drive system for the generator (3) of an internal combustion engine (1), including a flexible drive having a traction mechanism (5) which is guided across a generator pulley (6) driving the generator (3). The generator (3) is configured and electrically wired such that the generator (3) can be temporarily driven as a motor, and the generator (3) is coupled to the generator pulley (6) or the crankshaft pulley (7) is coupled to the crankshaft (8) via an overrunning clutch (4) which allows the generator (3), when operated as a motor, running faster than the generator pulley (6) or, taking into consideration a gear ratio, the crankshaft (8). Full Article
eng Aerial cable car system having transportation operating equipment for passenger and/or freight transport By www.freepatentsonline.com Published On :: Tue, 16 Dec 2014 08:00:00 EST An aerial cable car system including transportation operating equipment for passenger and/or freight transport, wherein electrical consumers are connected for operation thereof to a rechargeable electrical energy store of a transportation operating equipment by a respective power circuit. The transportation operating equipment includes an operating control device connected to measuring devices for dynamically capturing measurement values based on available quantity of energy in the energy store. The operating control device includes a storage module having at least one stored measurement control value and an associated control parameter. The operating control device includes a filter module comparing a captured measurement value to the at least one stored measurement control value and reading out corresponding stored control parameter, based on which power circuits can be selectively coupled or decoupled to the energy store by the operating control device. Electrical consumers in transportation operating equipment can be fed without interruption by the energy store, even during travel. Full Article
eng System and method for thermal control in a gas turbine engine By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A system includes a gas turbine engine that includes a compressor section configured to generate compressed air and a combustor coupled to the compressor section. The combustor is configured to combust a first mixture comprising the compressed air and a first fuel to generate a first combustion gas. The gas turbine engine also includes a turbine section coupled to the combustor. The turbine section is configured to expand the first combustion gas to generate an exhaust gas. The gas turbine engine also includes a boiler coupled to the turbine section. The boiler is configured to combust a second mixture comprising a portion of the first combustion gas and a second fuel to generate a second combustion gas that is routed to the turbine section. In addition, the boiler generates a first steam from heat exchange with the second combustion gas. Full Article
eng Length-adjustable wrap film dispenser By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A length-adjustable wrap film dispenser includes an outer tube member having a sleeve connection portion and a first engagement portion, and an inner tube member having an insertion portion axially movably and rotatably inserted into the sleeve connection portion of the outer tube member and a second engagement portion for engagement with the first engagement portion. When rotating the inner tube member relative to the outer tube member to disengage the second engagement portion from the first engagement portion, the inner tube member can be moved axially relative to the outer tube member to adjust the length of the length-adjustable wrap film dispenser. After adjustment, the inner tube member is rotated again to force the second engagement portion into engagement with the first engagement portion, locking the inner tube member and the outer tube member. Full Article
eng System and method for coordinating product delivery with ground engaging tool position By www.freepatentsonline.com Published On :: Tue, 25 Nov 2014 08:00:00 EST An agricultural implement system that includes a control system configured to receive a first signal to initiate seeding operations, to transition a ground engaging tool toward a working position at a first time after receiving the first signal, and to activate a product delivery system at a second time, different from the first time, after receiving the first signal. Full Article
eng Chair to assist physically challenged persons in swimming By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention relates to a swim chair that allows a mobility challenged individual to be transported across the sand with exceptional ease, to lounge on the chair and enjoy the company and sights, to be pulled into the water and, if able, to slip off the chair to go for a swim, remount the chair and return to shore. The chair includes a main frame, defined by a top frame member and two side frame members; two axle support plates, at or in communication with the side frame members of the main frame, the axle support plates having a plurality of openings to receive a wheel axle and optionally a pull rod axle; a wheel assembly; a drop seat; a footrest and a backrest. Full Article
eng Vibrational tool with rotating engagement surfaces and method By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A vibrational tool and method is disclosed, which may be utilized to assist in lowering a drill string into a wellbore. In one embodiment, a reciprocating member and a symmetrical rotating member are mounted within a vibrational tool housing. The reciprocating member is urged in one embodiment by a spring assembly toward the rotating member whereby engagement surfaces on the reciprocating member and rotating member encounter each other. As the rotating member rotates, variable surfaces on the engagement surface cause the reciprocating member to reciprocate as the variable surfaces follow or cam with respect to each other during rotation. The resistance to rotation by engagement surfaces and spring assembly, and mass of the rotating member, result in vibrational forces, when drilling fluid flows through the vibration tool housing. Full Article
eng Bunch length compression method for free electron lasers to avoid parasitic compressions By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method of bunch length compression method for a free electron laser (FEL) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the RF waveform, 2) compressing using a positive momentum compaction (R56>0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line. Full Article
eng Temperature grading for band gap engineering of photovoltaic devices By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for fabricating a photovoltaic device includes depositing a p-type layer at a first temperature and depositing an intrinsic layer while gradually increasing a deposition temperature to a final temperature. The intrinsic layer deposition is completed at the final temperature. An n-type layer is formed on the intrinsic layer. Full Article
eng Surface treatment equipment including a laser engraving system for treatment of a strip By www.freepatentsonline.com Published On :: Tue, 07 Oct 2014 08:00:00 EDT A surface treatment equipment is designed for forming nickel barriers on a plurality of terminals for preventing solder wicking is disclosed. The surface treatment equipment includes a retractable feeding system, a laser engraving system, an image sensor, and a control system. The retractable feeding system is utilized to transmit a strip that has the terminals. The laser engraving system is utilized to ablate the terminals. The image sensor is utilized to collect a plurality of images of the ablated terminals. The control system receives the images to perform image recognition. When a defective terminal is recognized, the control system controls the retractable feeding system to transmit in reverse and controls the laser engraving system to repeatedly ablate the defective terminal. The defective terminals can be automatically recognized by the image sensor accompanying the control system. Thus, the drawback of a human visual inspection is solved. Full Article
eng Wire-processing machine with length-compensating unit By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT A wire-processing machine or apparatus includes a wire-feeding apparatus for guiding a wire, wherein the wire-processing machine or apparatus contains a wire drive for forward movement of the wire and a guide pipe with an entry opening and an exit opening. The wire-processing machine or apparatus contains a swivel unit with drive and a wire-gripping apparatus which is arranged on a swivel arm, wherein an exit side end of the guide pipe is fastened to the swivel arm. The wire drive and the guide pipe are arranged in such manner that the wire can be shot-in through the guide pipe. The wire-feed apparatus further contains a length-compensating unit which is arranged in the area of the guide pipe and which, in a first state, shortens an effective length of the guide pipe and, in a second state, lengthens the effective length of the guide pipe. Full Article
eng Hydraulic engine with infinity drive By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST A system comprises a first piston comprising a first piston shaft and a first drive pin. A first piston cylinder comprises a first body and a first groove, wherein the first groove defines a first aperture, the first aperture oriented axially along the first body and configured to receive the first drive pin. The first body encloses the first piston and allows the first piston to travel axially within the first piston cylinder. A drive shaft comprises an axis, a drive groove, and a surface, wherein the drive groove forms a continuous channel along the surface and receives the first drive pin. In one embodiment, a first distribution wheel comprises a first face, a second face, a first inlet aperture, and a first outlet aperture. The first distribution wheel couples to the first piston cylinder and to the drive shaft at a first end of the drive shaft, and rotates axially with the drive shaft along the axis of the drive shaft. The first inlet aperture allows hydraulic fluid to pass through the first face and the second face and the first outlet aperture defines a groove on the second face. Full Article
eng Thermal engine with an improved valve system By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A radial thermal engine with an improved valve system is disclosed herein comprising intake and exhaust port valve assemblies fluidly connected to respective intake and exhaust ports contained within a cylinder head assembly. Each intake and each exhaust port valve assembly comprises at least one rotatable port cover having spaced apart openings which are periodically alignable to the intake and exhaust ports, respectively. Full Article
eng Variable-length compression technique for encoding or decoding a sequence of integers By www.freepatentsonline.com Published On :: Tue, 27 Oct 2009 08:00:00 EDT A system that encodes a sequence of integers using a variable-length compression technique is described. During operation, the system scans the sequence of integers and observes the sizes of the integers to determine a threshold value K from the observed sizes. For a given integer which is N bits in length, if N−K is greater than or equal to zero, the system generates a tag for the encoded integer which comprises a sequence of N−K zeros followed by a one, and generates a set of remaining bits for the encoded integer as a sequence of the N bits which make up the integer. Otherwise, if N−K is less than zero, the system generates a tag for the encoded integer as a single one, and generates a set of remaining bits for the encoded integer by padding the N bits which make up the integer with zeros so that the set of remaining bits is K bits in length. Full Article
eng Piston assembly for internal combustion engine By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A piston assembly includes a piston having a crown with an upper combustion surface with a cylindrical outer surface extending downwardly from the upper combustion surface. A pair of pin bosses depends from the crown to a pair of pin bores having generally cylindrical bearing surfaces aligned along a pin bore axis with a top wall portion extending between the pin bosses. The top wall portion has a concave bearing surface forming a continuous concave bearing surface with the pin bores. A separate skirt is fixed to the piston against relative movement. At least one rib extends upwardly from the top wall portion of the piston on opposite sides of the pin bore axis to a lower wall surface of the crown. The at least one rib joins the crown to the top wall portion to provide structural support to the top wall portion against unwanted deflection. Full Article
eng Methods and systems for managing a clearance gap in a piston engine By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A piston engine may include a heat pipe capable of transferring heat away from a portion of the piston engine such as a combustion section. The heat pipe may be included as part of a piston assembly, a cylinder, or both. The heat pipe may be filled with a suitable heat pipe fluid that may undergo a phase change such as, for example, water, ethanol, ammonia, sodium, other fluids or combinations thereof. Boiling and condensing of the fluid within the heat pipe may utilize the latent heat of the fluid during heat transfer. Multiple heat pipes may be used in some instances. Full Article
eng Piston for spark-ignition engine By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The present invention provides a piston for a spark-ignition engine, comprising: a land part 18, an upper surface part of which has a crown part 26 forming a combustion chamber; a pair of skirt parts 20 extending downward from a peripheral part of the land part 18 and facing each other in a radial direction thereof; a pair of sidewall parts 19 coupling side end parts of the pair of skirt parts 20 to each other; and a pin boss part 21 that is formed in each of the sidewall parts 19. The present invention can inhibit the generation of HC produced at the time of combustion, while thermally protecting a top ring 30 fitted into a top ring groove 24a on an outer circumferential surface of the land part 18. The crown part 26 is configured by a flat base surface 27 and a bulging part 15 bulging upward above the base surface 27, and a thinned part 40 provided in the land part 18 is formed deep such that the deepest part thereof is positioned inside the bulging part 15. Full Article
eng Railway coupler core structure for increased strength and fatigue life of resulting knuckle By www.freepatentsonline.com Published On :: Tue, 04 Mar 2014 08:00:00 EST A finger core for forming the front part of a knuckle for a railcar, said finger core comprising a single opening to form a single rib at the horizontal center line of the resulting knuckle. Full Article
eng Method and apparatus for engaging a beverage extraction device with a container By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Devices and methods for clamping a beverage extraction device to a beverage container, such as a wine bottle. One or more clamp arms may be arranged to clamp the extraction device to a wine bottle as well as allow the device to be supported upright on a table top. Clamp arms may include tab and ridge features that operate to properly engage and position a wide variety of different bottle neck shapes relative to the device. The one or more clamp arms may move the bottle neck distally, e.g., toward a resilient pad, so that the neck is suitably positioned relative to the device. Proper positioning and engagement of the neck may allow for desired piercing of a cork or other closure of the bottle by the device. Full Article
eng Method of controlling a group of engines, and an aircraft By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method of controlling a group (2) of engines developing a necessary power (Wnec) for driving a rotor (3), said group (2) of engines having at least one electrical member (4), electrical energy storage means (5), and a first number n of engines (6) that is greater than or equal to two. A processor unit (10) executes instructions for evaluating a main condition as to whether the group of engines can develop the necessary power while resting one engine, and if so for resting one engine and accelerating a second number engines not at rest, and for causing the electrical member to operate in motor mode, if necessary, the electrical member operating temporarily in electricity generator mode when the storage means are discharged. Full Article
eng Variable length light shield for an electro-optical sensor within a nose cone By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A variable length light shield is disclosed for an electro-optical sensor within a nose cone. The light shield includes a base, a telescopic shade supported by the base, and a ring rotatably supported about the base. The light shield also includes a guide tube disposed proximate the ring with an end extending away from the ring about a side of the telescopic shade. The light shield further includes an extension spring supported by the guide tube with an end coupled to the telescopic shade. Additionally, the light shield includes a cable extending through the guide tube and the extension spring, with one end of the cable coupled to the ring and another end of the cable coupled to the telescopic shade. The extension spring is configured to exert a force on the telescopic shade to extend the telescopic shade. Rotation of the ring causes retraction of the telescopic shade. Full Article
eng Oxygen scavenger compositions for completion brines By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An oxygen scavenger for completion brines effective and stable in high temperature subterranean formations. In one embodiment, the scavenger contains erythorbate and alkylhydroxlyamine. Full Article
eng System for measuring length of a beam extension and detecting support By www.freepatentsonline.com Published On :: Tue, 11 Nov 2014 08:00:00 EST An extendable beam measurement system includes a support; a beam mounted on the support and movable with respect to the support along an axis of movement; a series of sensory points mounted along either the beam or the support in an orientation that is not parallel to the axis of movement of the beam; and a sensor attached to the other of the beam or the support in a direction that crosses the series of sensory points at different positions during movement of the beam along said axis. The sensor generates a first signal varying as the beam is moved along the axis to thereby provide a signal indicating the position of the beam with respect to the support. The system is useful on an outrigger for supporting a crane. Optionally the system can provide a second signal indicative of whether a jack on the outrigger is contacting a support surface and supporting the crane. Alternatively, the system used to optionally generate the second signal can be used by itself to indicate whether a jack is supporting the crane, even if the beam extension is not measured. Full Article
eng Restriction engaging system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A restriction engaging system includes, a restriction engager, one or more restrictions, and at least one counter configured to permit or prevent passage of a restriction engager through one of the one or more restrictions. Full Article
eng Process for manufacturing a mechanical member made of a composite having increased mechanical strength By www.freepatentsonline.com Published On :: Tue, 07 Oct 2014 08:00:00 EDT A method of fabricating a mechanical member for aircraft, including a plurality of operations of braiding and depositing layers of braided reinforcing fibers on a mandrel (11) by using braiding machine. Each operation comprises braiding a braided layer and depositing it by moving the mandrel (11) along a central axis of the braiding machine. Each of the various superposed braided layers comprises both longitudinal fibers (12, 12G) that are parallel to a main direction of the mandrel (11), and interlacing fibers that are inclined. At least one operation is configured to form and deposit a braided layer having, in at least one cross-section of the member, a density of longitudinal fibers that differs depending on whether consideration is given to one angular region (S1) or another angular region (S2) of the same extent around the center of gravity (G) of the mandrel (11) in the section under consideration. Full Article