i Dishwasher with booster agent dispersal system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A dishwasher includes a shiftable rack provided with a washing agent dispersal system including a housing into which washing fluid is delivered. When the rack is shifted to a retracted position within a tub of the dishwasher, a tube feed system is employed to selectively distribute washing fluid from a pump assembly to each of multiple spray arms, the housing of the washing agent dispersal system and an auxiliary spray unit carried by the upper rack. Full Article
i Dishwasher machine comprising a sorption drying device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A dishwasher having a washing compartment; an air-guiding channel to generate an airflow; and a sorption drying system to dry items to be washed. The sorption drying system has a sorption compartment with reversibly dehydratable sorption material and the sorption compartment is connected to the washing compartment by the air-guiding channel. The reversibly dehydratable sorption material in the sorption compartment is layered in form of a sorption unit that has an inlet cross-sectional area such that the substantially identical respective air volume flow value that is applied to each entry point of the inlet cross-sectional area. Full Article
i Reticle chuck cleaner By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT According to one embodiment, a reticle chuck cleaner for cleaning a reticle chuck of an EUV exposure apparatus includes a substrate having a shape to be carried to the reticle chuck of the EUV exposure apparatus, and an adhesive formed on one of the main surfaces of the substrate. Full Article
i High performance low viscoelasticity foaming detergent compositions employing extended chain anionic surfactants By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The invention meets the needs above by providing a surfactant system, mixture or blend that can be used as a part of a soaking composition. The surfactant system is capable of forming emulsions with, and thus removing, oily and greasy stains. In a preferred embodiment the surfactant compositions of the invention can remove non-trans fat and fatty acid stains. The invention involves foaming soaking compositions that have some or part of the anionic surfactant present in the same replaced with an extended chain anionic surfactant. Full Article
i Cleaning machine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A cleaning machine for containers, containing a housing in which various treatment stations, including a feed station and a discharge station, are accommodated, whereby the housing has two side walls located opposite each other. In order to simplify the installation of the cleaning machine, a modular construction is used, whereby at least the discharge station is formed as a module. Full Article
i Tools and methods for processing microelectronic workpieces using process chamber designs that easily transition between open and closed modes of operation By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Strategies for tool designs and their uses wherein the tools can operate in either closed or open modes of operation. The tools easily transition between open and closed modes on demand. According to one general strategy, environmentally controlled pathway(s) couple the ambient to one or more process chambers. Air amplification capabilities upstream from the process chamber(s) allow substantial flows of air to be introduced into the process chamber(s) on demand. Alternatively, the fluid pathways are easily closed, such as by simple valve actuation, to block egress to the ambient through these pathways. Alternative flows of nonambient fluids can then be introduced into the process chamber(s) via pathways that are at least partially in common with the pathways used for ambient air introduction. In other strategies, gap(s) between moveable components are sealed at least with flowing gas curtains rather than by relying only upon direct physical contact for sealing. Full Article
i Cleaning and/or unblocking of process equipment By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method of cleaning an internal component (14) of a process vessel (10) includes opening a guide (42) extending at least from a vessel access port or entry nozzle (38) to the internal component (14), guiding a cleaning agent/device by means of the guide (42) to the internal component (14), cleaning the internal component (14) with the cleaning agent/device, and closing the guide (42). The process vessel (10) is then operated with the guide (42) remaining in the process vessel (10). Full Article
i Moving handrail sanitizing device By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A device for cleaning and sanitizing a moving handrail, such as those found on escalators and moving walkways. The device can automatically and continuously sanitize a handrail as it moves past or through the device, thereby preventing the spread of germs and viruses and encouraging users to make contact with the handrail for safety reasons without worrying about disease transmission. Full Article
i Cleaning system for a beverage machine, preferably a coffee machine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention relates to a cleaning system for coffee machines, comprising a cleaning device for periodically cleaning the coffee- and/or milk-carrying components using a cleaning liquid, which contains cleaning agent in the form of balls or tablets dissolved therein, wherein the cleaning device is provided with a time- and/or product-cycle-dependent controller and a metering apparatus (1) for the cleaning agent (10) that interacts with the controller. Thus, it is possible to program the cleaning process in a customized manner according to the mode of operation and to carry out the cleaning process fully automatically according to the program. The metering of the cleaning agent (10) according to the program ensures an always optimal cleaning effect together with sparing use of cleaning agents. Simple and safe handling is achieved by using ball- or tablet-shaped cleaning agents. Full Article
i Steam cleaning apparatus By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A steam cleaning apparatus including a main body having a main switch, a steam cleaning head coupled to the main body, and a position sensitive switch having a first state when the steam apparatus is in a substantially vertical storage position and a second state when the steam cleaning apparatus is in a tilted, cleaning position, the position sensitive switch being connected in electrical series with the main switch such that when the position-sensitive switch is in the first state the position-sensitive switch interrupts the flow of electrical current from the main switch and when the position-sensitive switch is in the second state, electrical power is supplied by the main switch. Full Article
i Antiseptic applicators and packaging techniques By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT This disclosure describes example antiseptic applicators that may be used in combination with one or more cleansing, antimicrobial and/or antiseptic agents to reduce or eliminate contaminates on a surface. According to some embodiments, the disclosure describes that the applicators may contain an impermeable layer and a permeable layer, where the impermeable layer prevents contaminates for transferring from a user's hand to the permeable layer and the surface. Full Article
i Stackable cartridges for bulk feeders By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A set of vertically stackable interacting cartridges for improving the delivery of biocide of a bulk feeder by positioning the stackable cartridges in a stacked condition within a chamber in the bulk feeder wherein the stackable cartridges are maintained in vertical interacting flow alignment with each other to provide enhanced control of the delivery of the biocide carried within each of the stackable cartridges without replacing the control valves of the bulk feeder. Full Article
i Low foam media cleaning detergent with nonionic surfactants By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A detergent for cleaning media is provided. The detergent comprises deionized water, between about 1% and about 5% by weight of a nonionic surfactant having an hydrophile/lipophile balance (HLB) value between about 10 and about 20, and an ethoxylation level between about 5 and about 20, between about 1% and about 5% by weight of a dispersing agent, between about 3% and about 10% by weight of a chelating agent comprising phosphonic acid, and between about 2% and about 6% by weight of an inorganic salt. Full Article
i Dishwasher By www.freepatentsonline.com Published On :: Tue, 09 Jun 2015 08:00:00 EDT A dishwasher, in particular a household dishwasher, includes at least one wash compartment and a rack guide rail for support in the wash compartment of a rack which holds items to be washed and/or dried. The rack guide rail has a running surface to allow movement of the rack in and out of the wash compartment for loading and unloading purposes along a travel path supported on the running surface. The rack guide rail is hereby supported at a support point for pivoting about a pivot axis. Full Article
i Method and apparatus for multiple cutoff machining of rare earth magnet block, cutting fluid feed nozzle, and magnet block securing jig By www.freepatentsonline.com Published On :: Tue, 17 Jun 2014 08:00:00 EDT In a method for multiple cutoff machining a rare earth magnet block, a cutting fluid feed nozzle having a plurality of slits is combined with a plurality of cutoff abrasive blades coaxially mounted on a rotating shaft, each said blade comprising a base disk and a peripheral cutting part. The slits in the feed nozzle into which the outer peripheral portions of cutoff abrasive blades are inserted serve to restrict any axial run-out of the cutoff abrasive blades during rotation. Cutting fluid is fed from the feed nozzle through slits to the rotating cutoff abrasive blades and eventually to points of cutoff machining on the magnet block. Full Article
i Body comprising hard face structure and method for making same By www.freepatentsonline.com Published On :: Tue, 17 Jun 2014 08:00:00 EDT A body, such as a pick tool for cutting coal, includes a steel substrate and a hard face structure fused to the steel substrate. The hard face structure includes at least 1 weight percent Si, at least 5 weight percent Cr and at least 40 weight percent W. Substantially the balance of the hard face structure includes carbon and an iron group metal M selected from Fe, Co, Ni and alloy combinations of these elements. The hard face structure includes a plurality of elongate or platelike micro-structures having a mean length of at least 1 micron, a plurality of nano-particles having a mean size of less than 200 nanometers, and a binder material. Full Article
i Wafer dicing blade and wafer dicing apparatus including the same By www.freepatentsonline.com Published On :: Tue, 24 Jun 2014 08:00:00 EDT A wafer dicing blade includes a cutting part including a protrusion, the protrusion having a uniform region with a substantially uniform width, and a support covering at least one sidewall of the cutting part, the protrusion of the cutting part extending beyond an edge of the support. Full Article
i Splitting wedge By www.freepatentsonline.com Published On :: Tue, 24 Jun 2014 08:00:00 EDT A splitting wedge includes at least a wedge (1), an external sleeve (3), and a wedge sleeve (2). The wedge sleeve (2) and the external sleeve (3) are connected to one another by providing one with a flange (8, 10) and the other with a groove (7, 9), the flange (8, 10) and the groove (7, 9) being substantially perpendicular with respect to a direction of motion (B) of the wedge (1), and by arranging the flange (8, 10) in the groove (7, 9). Full Article
i Masonry block multi-splitting apparatus and method By www.freepatentsonline.com Published On :: Tue, 01 Jul 2014 08:00:00 EDT An apparatus for splitting a plurality of masonry blocks is provided. The apparatus includes a plurality of first splitting blades that are configured to simultaneously move in a first direction, so as to split one of each of the plurality of masonry blocks into two or more sections during a single splitting operation. Each section has a first split surface. A plurality of second splitting blades is provided, where each is perpendicular and adjacent to one of the first splitting blades. Each of the second splitting blades is configured to form a second split surface on one of the masonry block sections that is perpendicular to at least one of the first split surfaces. Full Article
i Tile saw with free-rolling wheels By www.freepatentsonline.com Published On :: Tue, 22 Jul 2014 08:00:00 EDT A saw system in one embodiment includes a base, a work support surface member supported by the base and including a work piece support surface defining a horizontal work piece support plane, and a plurality of wheels, each of the plurality of wheels engaged with at least one of the base and the work support surface member, wherein none of the plurality of wheels is attached to either the base or the work support surface member. Full Article
i Saw for construction cutting work By www.freepatentsonline.com Published On :: Tue, 29 Jul 2014 08:00:00 EDT A saw (1) being portable and/or wheeled, such as a wall saw, floor saw or masonry saw, comprising a rotatable circular saw blade (3), a drive motor (5) with an motor output shaft (9) for rotating the saw blade (3), and a transmission (20) for interconnecting the motor output shaft (9) to the rotatable saw blade (3) in order to change an unsuitable high speed and low torque combination of the motor output shaft (9) into a more useable lower speed and higher torque combination at the rotatable tool (3), wherein the transmission (20) comprises two adjustable friction saw protective clutches in parallel, which can be set at a desired predetermined value, so as to limit the maximum size of the forces that the teeth and gears of the transmission (20) are exposed to. No over dimensioning is necessary, and the transmission (20) will make out fine in rough environments. The transmission may be of single-speed or two-speed type. Full Article
i Brazed diamond dressing tool By www.freepatentsonline.com Published On :: Tue, 05 Aug 2014 08:00:00 EDT A dressing blade for finishing and reconditioning new and used abrasive grinding and cutting tools has a slab-shaped shank with an extension protruding longitudinally from the shank. Superabrasive grains are disposed on the surface of the extension and held in place by a brazed metal composition. This composition is formed by brazing a powdered mixture of brazing metal components and active metal components. Specific extension configurations are provided which allow aligning the superabrasive grains in single layer arrangement for precise dressing and simple fabrication of the tool. The novel dressing tool exhibits excellent wear characteristics. Full Article
i Sawing rope By www.freepatentsonline.com Published On :: Tue, 19 Aug 2014 08:00:00 EDT A sawing rope (270) with abrasive elements (506) fixed on a steel rope (502) with a polymer jacket (504) is described and claimed. The abrasive elements (506) are made of a metallic sleeve on which an abrasive layer is deposited by means of electrolytic deposition, by means of sintering or by means of cladding for example laser cladding. Characteristic about this sawing rope (270) in view of the prior known sawing ropes is that each sleeve shows a connection or closure. Such a connection makes it possible to attach abrasive elements (506) on the rope without having to thread them on the rope (270) as is needed when making prior-art sawing ropes. The inventive sawing rope (270) can therefore be made in long lengths in a very efficient way. Full Article
i Methods, wires, and apparatus for slicing hard materials By www.freepatentsonline.com Published On :: Tue, 02 Sep 2014 08:00:00 EDT Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces. Full Article
i Methods, wires, and apparatus for slicing hard materials By www.freepatentsonline.com Published On :: Tue, 02 Sep 2014 08:00:00 EDT Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces. Full Article
i Device for adjusting the blade guard holder of a wall saw By www.freepatentsonline.com Published On :: Tue, 16 Sep 2014 08:00:00 EDT A device (20) for adjusting the blade guard holder (17) arranged on the saw arm (3) of a wall saw (1), having a coupling element (25) is provided, whereby a first end of the coupling element (25) is joined to the blade guard holder (17), and, in a locked state, a second end is joined to the saw arm (3). Full Article
i Apparatus, system and method for using a diamond-impregnated wire to cut an object By www.freepatentsonline.com Published On :: Tue, 16 Sep 2014 08:00:00 EDT An apparatus, a system and a method may use a diamond-impregnated wire loop to cut an underwater pipeline. The apparatus may have a frame, a carriage attached to the frame and/or pulleys connected to the carriage. The diamond-impregnated wire loop may be connected to the pulleys. The carriage may move relative to the frame to direct the diamond-impregnated wire loop in a forward direction relative to the frame and/or through the pipeline. Full Article
i Hydraulically-actuated, horizontal flush-cut radial concrete saw and trip hazard removal method By www.freepatentsonline.com Published On :: Tue, 23 Sep 2014 08:00:00 EDT A concrete saw is disclosed having a rigid metal frame, a hydraulic drive system, a water-cooled hub, and an axially rotatable trigger assembly comprising a 12 volt switch. The saw may include a hydraulic pump operable to supply pressurized hydraulic fluid to the drive system. In some embodiments, the saw may includes a flow sharing valve fluidly coupled to the hydraulic drive system to distribute the pressurized hydraulic fluid from the a hydraulic pump in a portable power pack. A method of removing trip hazards with the saw is also disclosed. Full Article
i Method for slicing a multiplicity of wafers from a crystal composed of semiconductor material By www.freepatentsonline.com Published On :: Tue, 30 Sep 2014 08:00:00 EDT A method for slicing a plurality of wafers from a crystal includes providing a crystal of semiconductor material having a longitudinal axis, a cross section and at least one pulling edge. The crystal is fixed on a table and guided through a wire gang defined by sawing wire so as to form the wafers. The guiding is provided by a relative movement between the table and the wire gang such that entry sawing or exit sawing using the sawing wire occurs in a vicinity of the at least one pulling edge of the crystal. Full Article
i Slot wear indicator for a grinding tool By www.freepatentsonline.com Published On :: Tue, 07 Oct 2014 08:00:00 EDT Wear indicators for abrasive articles are presented. Specifically, indicator marks that are parallel to a bonding edge of a grinding element are presented. Tools comprising a carrier element and one or more grinding elements comprising one or more indicators are also presented. Full Article
i Self-cleaning wiresaw apparatus and method By www.freepatentsonline.com Published On :: Tue, 07 Oct 2014 08:00:00 EDT The present invention provides a self-cleaning wiresaw cutting apparatus including a cleaning mechanism adapted to clean the components of the wiresaw before, during, or after a cutting process or to humidify the cutting region of the apparatus. The apparatus contains at least one dispenser adapted to dispense an aqueous fluid onto various components of the wiresaw. Full Article
i Engine-driven cutter By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT A handheld engine-driven cutter is provided with a disk blade and a main body that drives the disk blade by an engine. A guard surface for repelling chips of a workpiece that scatter from the disk blade to below the main body is formed on the main body. The guard surface has an asymmetric shape with respect to a boundary that is a rotating plane of the disk blade. Full Article
i Protective cover for a handheld power tool By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT A protective cover for a handheld power tool, with a tool that is at least partially surrounded by the protective cover, is formed of at least a first wall element and a second wall element, which in order to form a tool space are connected to each other in a parallel-spaced arrangement. The first wall element has a first circumferential section and the second wall element has a second circumferential section. The circumferential sections overlap each other and form a circumferential wall of the protective cover, with at least one opening which is provided in the outer-lying second circumferential section and under which the inner-lying first circumferential section extends. Full Article
i Chop saw with dust collection system By www.freepatentsonline.com Published On :: Tue, 28 Oct 2014 08:00:00 EDT A chop saw, grinding wheel, or like apparatus is disclosed herein also incorporated to an easily portable dust collection system. In a preferred embodiment, a worktable is provided with a center slot for receiving a circular saw blade. A negative pressure and resulting air flow is provided at the center slot to capture particulate matter as a byproduct of cutting the workpiece. Side slots are also disclosed to assist in particulate collection. A unique filter chamber having a cylindrical filter is additionally provided to remove dust from air and discharge the filtered air at a lateral side of the apparatus. A filter cleaning knob is additionally disclosed to assist in cleaning the filter. Of the beneficial aspects of the chop saw with dust collection system is its portability being one integral unit and the dust filter being easily cleaned and maintained. Full Article
i Hand-operated implement comprising a cutting chain for cutting mineral and metal materials By www.freepatentsonline.com Published On :: Tue, 28 Oct 2014 08:00:00 EDT A hand-operated implement has a guide bar on which is fitted a cutting chain for cutting mineral and metal materials. The cutting chain is driven around the guide bar by a chain sprocket. The chain sprocket is arranged in a chain sprocket chamber which is delimited by a chain sprocket cover. A cutting element has an outer side facing a sidewall of the chain sprocket cover which lies in a first notional plane. The distance between the sidewall and the first notional plane measured perpendicular to the first notional plane and centrally between the top of the cutting element and the peripheral wall is less than approximately 0.8 cm over at least 30% of the section between a second notional plane containing the central axis of a fixing bolt on the guide bar and the exit opening at which the cutting chain leaves the chain sprocket chamber. Full Article
i Wire saw with tension detecting means and guide roller speed control By www.freepatentsonline.com Published On :: Tue, 11 Nov 2014 08:00:00 EST The present invention provides a wire saw which cuts a workpiece using a cutting wire and is capable of adjusting wire tension with high responsiveness. The wire saw includes first and second workpiece cutting units 1A and 1B. Each of the workpiece cutting units 1A and 1B includes a pair of guide rollers 10a and 10b around which a wire W is wound to form a workpiece-cutting wire group. The wire saw further includes a tension detector 18 which detects tension in the wire W between the workpiece cutting units 1A and 1B, and a control device 50. The control device 50 changes a rotational speed of the guide rollers 10a and 10b of at least one of the workpiece cutting units based on the tension detected by the tension detector 18 so as to keep the tension within an acceptable range. Full Article
i Gear grinding machine By www.freepatentsonline.com Published On :: Tue, 11 Nov 2014 08:00:00 EST Provided is a gear grinding machine the maintainability of which can be improved and which is capable of being miniaturized. More specifically, provided is a gear grinding machine wherein a threaded grinding stone (17) and a workpiece (W) are engaged with each other and are rotated in this state, resulting in the workpiece (W) being ground, and wherein between a dressing position (P2) where the threaded grinding stone (17) can be dressed and a retreat position (P1) to which a retreat is made from the dressing position (P2) during grinding, a disk dresser (66) which, by being driven into rotation, dresses the threaded grinding stone (17) is swung about an axis (C2) which is parallel to an axis (C1) that is the rotational axis for the workpiece (W) and which intersects, at right angles, the direction in which the threaded grinding stone (17) is fed toward the workpiece (W). Full Article
i Ductile mode machining methods for hard and brittle components of plasma processing apparatuses By www.freepatentsonline.com Published On :: Tue, 25 Nov 2014 08:00:00 EST A method of ductile mode machining a component of a plasma processing apparatus wherein the component is made of nonmetallic hard and brittle material wherein the method comprises single point turning the component with a diamond cutting tool causing a portion of the nonmetallic hard and brittle material to undergo a high pressure phase transformation to form a ductile phase portion of the hard and brittle material during chip formation wherein a turned surface is formed from a phase changed material and the turned surface is a grooved textured surface of phase changed material. Full Article
i Masonry circular saw stabilizing and supporting shoe By www.freepatentsonline.com Published On :: Tue, 02 Dec 2014 08:00:00 EST A supporting and stabilizing shoe used with a masonry circular power saw. A shoe frame rigidly mounts to the saw's motor frame. A plate that is preferably substantially planar and bifurcated to form two substantially co-planar members with a gap therebetween pivotably mounts to the shoe frame. A spring biases the plate away from the blade, but can be overcome, and an adjustment knob tightens the plate in position relative to the blade. This provides for depth adjustment for the blade and keeps the blade at a desired angle, such as ninety degrees, to the workpiece surface. The plate extends longitudinally from the motor frame beneath the drive mechanism and the blade of the saw to provide a stable surface upon which the saw can rest during use or storage. Full Article
i Cutting tool with blade made of fine-crystalline diamond By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST The present invention relates to a cutting tool, in particular in the form of a razor blade, a scalpel, a knife, a machine knife, scissors etc., which has a synthetic diamond layer with a cutting edge. The diamond layer thereby consists of fine-crystalline diamond. Full Article
i Motorized cutter, motorized cutter with wheels, and cutting method By www.freepatentsonline.com Published On :: Tue, 06 Jan 2015 08:00:00 EST The motorized cutter with wheels (10) comprises a motorized cutter (20) and a carriage (30). The motorized cutter (20) is equipped with an engine (24), a blade (22) rotatably driven by the engine (24), and a light-emitting unit (50) that generates laser light (52) in the same plane as the plane of rotation of the blade (22). A roadbed (90) is then cut along a line (X) drawn on the roadbed (90) by operating the motorized cutter with wheels (10) so that the line (X) is irradiated with the laser light (52). It is possible to remove the motorized cutter (20) from the carriage (30) together with the light-emitting unit (50). Full Article
i Hybrid concrete saw By www.freepatentsonline.com Published On :: Tue, 13 Jan 2015 08:00:00 EST A hybrid concrete saw includes a saw blade, an internal combustion engine having an output shaft operably connected to the saw blade, and an electric motor connectable to a battery for receiving power therefrom and having an output shaft operably connected to the saw blade. A transmission is connected to the output shaft of each of the engine and the electric motor and the saw blade. A clutch selectively decouples one of the engine and the electric motor from the transmission. A controller controls operation of the engine and the electric motor. The concrete saw is operable in a first mode where the saw blade is driven solely by the engine, a second mode where the saw blade is driven solely by the electric motor, and a third mode where the saw blade is driven by both the engine and the electric motor. Full Article
i Method of dressing an abrasive wheel using a polycrystalline CVD synthetic diamond dresser and method of fabricating the same By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST A method of dressing a wheel using a polycrystalline CVD synthetic diamond dresser, the method comprising: rotating the wheel; and contacting a working surface of the wheel with a working surface of the polycrystalline CVD synthetic diamond dresser, wherein the polycrystalline CVD synthetic diamond dresser is oriented such that a leading edge of the working surface of the polycrystalline CVD synthetic diamond dresser is formed of larger grains than a trailing edge of the working surface of the polycrystalline CVD synthetic diamond dresser. Full Article
i Method for shaping and slicing ingots using an aqueous phosphate solution By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST A method for slicing a workpiece into wafers in which a polyphosphate solution is applied to the workpiece during the slicing process. The method comprises the steps of positioning the workpiece, such as a silicon ingot, in the vicinity of a wire saw that can cut through the workpiece without the use of an abrasive slurry; causing an aqueous polyphosphate solution to contact the workpiece; and causing the wire saw to cut into the workpiece while the polyphosphate solution is in contact with the workpiece. After the workpiece has been cut into wafers, the polyphosphate solution is rinsed off of the wafers. Preferably, the wire saw used in this method is a diamond wire saw. Full Article
i Wall or floor chainsaw By www.freepatentsonline.com Published On :: Tue, 17 Feb 2015 08:00:00 EST A chain bar unit for a wall saw is presented herein. The chain bar unit can include a bar configured to receive a circulating chain or wire around a perimeter of the bar. The chain bar unit also can include a driving gear for driving the chain or wire around the bar, the driving gear configured to be coupled to an output shaft of the wall saw. The chain bar unit further includes the bar being tapered from an end proximate to the driving gear to a distal end having a distal end radius, wherein a width of the bar at the proximate end, is at least two times the distal end radius of the distal end. Full Article
i Wiresaw cutting method By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST The present invention provides a wiresaw cutting method comprising cutting a workpiece with a wiresaw while applying an aqueous cutting fluid to the wiresaw from a recirculating reservoir of cutting fluid, monitoring at least one of a chemical property, a physical property, or both, and adjusting the chemical composition of the cutting fluid while cutting the workpiece to maintain the property being monitored. The present invention additionally provides an apparatus to perform the inventive method. Full Article
i Cutting chain for a hand-operated implement and hand-operated implement By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain. Full Article
i Systems and methods for connecting an ingot to a wire saw By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST Systems and methods are disclosed for connecting an ingot to a wire saw with an ingot holder, a bond beam, and a bar. The bar has an angled mating surface that engages a recessed surface formed in a slot of the bond beam. Mechanical fasteners are used to connect the tee bar to the ingot holder. The angle of the mating surface with respect to the recessed surface of the slot prevents deformation of the bond beam and prevents compromising the integrity of the adhesive bond between the ingot and the bond beam. Full Article
i Method for cooling a workpiece made of semiconductor material during wire sawing By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST A method for cooling a cylindrical workpiece during wire sawing includes applying a liquid coolant to a surface of the workpiece. The workpiece is made of semiconductor material having a surface including two end faces and a lateral face. The method includes sawing the workpiece with a wire saw including a wire web having wire sections arranged in parallel by penetrating the wire sections into the workpiece by an oppositely directed relative movement of the wire sections and the workpiece. Wipers are disposed so as to bear on the surface of the workpiece. The temperature of the workpiece is controlled during the wire sawing using a liquid coolant applied onto the workpiece above the wipers so as to remove the liquid coolant with the wipers bearing on the workpiece surface. Full Article
i Workpiece for frame gang saw, method for cutting the workpiece, and product cut by the method By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT There is provided a method of cutting or drilling workpiece including stone such as marble and granite, brick, concrete and asphalt, using a frame gang saw. There are provided a workpiece cut by a frame gang saw that includes one or a plurality of blades having multiple cutting tips or that includes a blade without including a cutting tip; a method of cutting the workpiece by using a frame gang saw; and a product provided by the cutting method. The workpiece is provided to include one or more grooves into which at least a portion of at least one cutting tip among the multiple cutting tips or at least a portion of the blade without a cutting tip is inserted and which is formed in a surface thereof. Here, an initial cutting time on a workpiece may be shortened to greatly improve productivity and the quality of a product and a lifespan of a frame gang saw blade may be improved by significantly decreasing deflection in the blade. Full Article