The invention relates to a workholder (10) for holding a workpiece to be processed in a machine tool, which workholder (10) is in the form of a annular body (12) having a central through hole (14), said annular body (12) having at least one weakened area (18, 20; 34, 36, 38, 40; 50, 52, 54, 56) obtained by material removal, as well as at least one pressure chamber (22; 42, 44; 58, 60) assigned to said at least one weakened area (18, 20; 34, 36, 38, 40; 50, 52, 54, 56) that can be charged with a pressurized fluid. Said at least one weakened area (18, 20; 34, 36, 38, 40; 50, 52, 54, 56) is dimensioned and arranged so as to cause said annular body (12) to be elastically deformable in an axial and/or a radial direction (a, r). As a result, with pressure acting on said pressure chamber (22; 42, 44; 58, 60), said annular body (12) can then be deformed elastically in a well-defined manner in an axial and/or a radial direction (a, r).

A pin-and-collet assembly, a longwall shearer comprising a ranging arm attached to a lifting bracket with such assembly, a method for the secure fastening of one piece to another, such as securely fastening the ranging arm to the lifting bracket of a longwall shearer using such assembly as a bushing, and a method for longwall mining of ore, such as trona, using such longwall shearer. This assembly is easy to install, does not have to be tightened during longwall operation of an ore panel, and is also demountable when it is time to stop the longwall mining operation and time to remove/replace the ranging arm for maintenance and/or when the end of the ore panel is reached.

A holder for a cutting tool includes a body having a first channel for receiving a stem portion of the cutting tool. The body has a second channel intersecting with the first channel. The holder further includes a plunger to be inserted in the second channel, the plunger having a third channel the cross section of which at least partly overlaps with the cross section of the first channel when the plunger is inserted into the body so as to enable the stem of the cutting tool to extend into the third channel when the stem is inserted in the first channel. The holder further includes a mechanism for locking the stem against movement relative to the body by means of the plunger. A cutting tool for use in such a holder and a cutting insert are also provided.

A device for forming containers from heated parisons of thermoplastic material, which includes a heating section and a blow molding unit provided with at least one blow molding station. The parisons are held along at least a portion of a transport path between the heating section and the blow molding unit by a carrying element, which has a head that can be inserted into a mouth section of a parison and which includes at least two positionable clamping elements. At least one of the clamping elements is positioned in a recess provided on a side of the head relative to a longitudinal axis of the carrying element. The recess has upper and lower sliding surfaces that extend obliquely relative to the longitudinal axis for acting on the clamping element. The upper head part and the lower head part are braced relative to each other by at least one spring.

In a device for machining, in particular etching and/or developing, substrates, in particular wafers, in particular etching and/or developing, having a turntable, the turntable has a Venturi gap.

The invention relates to a high-precision clamping device for tools in machine tools of the conventional type according to ISO 15488 and to a collet chuck, a base and a tensioning nut. The invention also relates to a chuck key for tightening the locknut without radial stress. The clamping device according to the invention is characterized by a substantially improved runout accuracy, torsional rigidity of the collet chuck and rigidity of the tool clamped therein.

A chuck device in which a rotary sleeve provided to a main body is rotated, and by rotation of an annular rotary body which rotates together with the rotary sleeve, jaws screwed together with the rotary body are expanded, contracted, advanced, and retracted, and a tool is gripped by the jaws; the chuck device comprising a retaining engaging body for engaging with the rotary body and preventing the rotary sleeve from coming out of the rotary body; wherein the retaining engaging body is provided to be fixed to a proximal end side of the rotary sleeve; a rotation transmission part for directly or indirectly transmitting the rotation of the rotary sleeve to the rotary body is provided to the retaining engaging body; and the rotation of the rotary sleeve is transmitted to the rotary body via the retaining engaging body, and the rotary body rotates together with the rotary sleeve.

Device for cooling a rotating tool mounted on a machine, including elements for generating a continually renewed first flow of air, external to the tool and around the tool, at a high flow rate, produced via a Coanda-effect flow amplifier device realized in a housing fixed on the machine around the tool holder connected to a source of pressurized air.

An apparatus for preparing drilled needle blanks from a spool of coiled stock wire may include a laser for drilling a bore in the end of the stock wire and a cutting device for cutting the drilled wire into needle blanks.

The present invention provides a surgical needle having a needle tip end and a clamping portion to be clamped by a needle holder for applying a current, wherein the needle tip end is made from a conductive material which is electrically connected to a conductive material of the clamping portion, an insulating layer is provided over the clamping portion and a tip surrounding portion of the surgical needle, whereas at least the needle tip end is electrically exposed, and when the insulating material over the clamping portion is clamped by the needle holder, the conductive material of the clamping portion is electrically connected to the needle holder.

A hypodermic needle featuring a multi-beveled point geometry is disclosed. In one embodiment, the multi-beveled point features a primary bevel, a pair of tip bevels, and a pair of middle bevels each intermediate the primary bevel and a respective one of the tip bevels. The primary and middle bevels are provided at angles of inclination, measured between the central axis and a reference plane that are substantially identical. The tip bevels are formed at an angle of inclination respective to the central axis which is not equal to the angle of inclination at which the primary and middle bevels are formed. The resulting five-beveled point geometry contributes to a more continuous bevel face free of abrupt intercepts or transitions between the respective bevel faces, lessening the penetration force required to urge the needle point through skin, flesh, or other material.

A method of stress relieving drilled surgical needles is disclosed. At least the metal about a drilled bore hole is heat treated to relieve stress without annealing.

The present invention relates to an implement, in particular an excavator or machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas, wherein the actuation of the implement is effected in dependence on the directly or indirectly determined temperature of the gas in the chamber filled with gas.

Method of indicating the position of a hydraulically actuated armature, comprising an adjust cylinder for actuating the armature, connected by at least one pressure medium line to an adjustment valve through which the pressure medium line can be switched between pressure-causing forward flow and pressure-less backward flow, wherein the flow through the pressure medium line is converted into a number of electric pulses and the number of pulses reflecting the flow is processed in a program in an indicator unit such that the number of pulses occurring in a predetermined adjustment travel when the flow in the pressure medium line is pressure-less is calculated as being the same adjustment travel as when the pressure medium line is switched to be the pressure line.

The invention relates to a method for constructing a gas-filled double-acting hydraulic cylinder (1) with gas spring action, comprising: —a cylinder sleeve (3) with a cylinder bottom (3a) and cylinder head (3b) —a piston/piston rod assembly (5) a hydraulic fluid seal on the piston (9) —a connection for the head-side chamber (13) to a hydraulic line; —a connection for the bottom-side chamber (15) to a hydraulic line, —a gland (20) with a bore, the gland being attached between the cylinder bottom (3a) and the piston (9), the piston rod (7) extending over the entire stroke of the piston rod through the bore, wherein the gland comprises two seals —(25), one for providing a seal with the cylinder sleeve (3) and one for providing a seal with the piston rod.

The present invention relates to devices and systems that alter intracranial compliance, cerebral blood flow and/or intracranial pressure pulsatility/waveform by oscillating the contraction and expansion of a compressible composition within the cranial or spinal cavities such that they increase intracranial capacity. The contraction and expansion of the compressible composition in the oscillating compliance devices can be due to an individual's intracranial pressure, the result of the expansion and compression of a reservoir which is mediated by the contractility of the heart or driven by a pump gaited to a biorhythm. The invention also relates to methods for protecting an individual's brain from abnormal arterial pulsations and for altering an individual's cerebral blood flow using the devices and systems of the invention. The oscillating compliance devices can be used to treat several diseases and/or conditions characterized by altered/abnormal intracranial compliance, cerebral blood flow and/or intracranial pressure pulsatility/waveform, including hydrocephalus, stroke, dementia and migraine headaches, vasospasms, congestive heart failure, cardiopulmonary bypass or carotid endarterectomy.

A sensor coupler adapted to operatively connect a sensor to a piston-cylinder assembly. The sensor coupler includes a first end member and a second end member. The first end member is disposed on a port of the piston-cylinder assembly, in communication with the sensor, and the second end member is disposed in a cylinder chamber of the piston-cylinder assembly. Further, one or more cables are extending between the first end member and the second end member. The one or more cables are configured to transmit signals indicative of a position of a piston in the piston-cylinder assembly to the sensor. The sensor coupler further includes a biasing member to connect the first end member and the second end member.

An apparatus can include a pressure vessel that defines an interior region that can contain a liquid and/or a gas. A piston is movably disposed within the interior region of the pressure vessel. A divider is fixedly disposed within the interior region of the pressure vessel and divides the interior region into a first interior region on a first side of the divider and a second interior region on a second, opposite side of the divider. The piston is movable between a first position in which fluid having a first pressure is disposed within the first interior region and the first interior region has a volume less than a volume of the second interior region, and a second position in which fluid having a second pressure is disposed within the second interior region and the second interior region has a volume less than a volume of the first interior region.

Valve control device includes a body with a longitudinal axis, a control member housed at least partially in the body in a bottom portion along the longitudinal axis, a piston movable along the longitudinal axis and housed in a portion of the body forming with the piston a control chamber of the piston, an element movable in rotation with respect to the longitudinal axis on a top portion of the body, and sealing means between the movable element and the control chamber in the area of the connection port and/or of the passage.

In a reciprocating piston compressor with delivery rate control, the electromagnetic actuating device (3) of the valve lifter (2) has a separate positioning drive (10) for adjusting the working stroke range of the magnetic actuator (5) used, whereby this can be chosen to be small and highly dynamic and only low power losses occur.

In a fluid pressure cylinder, a piston is displaced in an axial direction under the action of a pressure fluid. A circular protrusion, which projects toward the piston along an axial direction of the cylinder tube, is formed on an inner end surface of a collar member constituting part of the fluid pressure cylinder, a concavity, which can be fitted externally over the circular protrusion, is formed on the piston, and an annular groove is formed on an inner circumferential edge of an end plate. By the piston coming into contact with the end plate, a pressure receiving chamber is formed between the piston and the annular groove, together with an opening of a second port on an inner side of the cylinder tube being closed to a maximum of 90%.

The present invention relates to a mounting of carbon electrodes on a holder of an arc lamp used as a light source for a weatherometer or a lightfastness tester. In the holder, one end of the carbon electrodes and the holder are threadedly connected with each other.

A thin film of a low-thermionic-work-function material is maintained on the cathode of a device for producing a high-current, low-pressure gas discharge by means of sputter deposition from an auxiliary electrode. The auxiliary electrode includes a surface with a low-work-function material, such as thorium, uranium, plutonium or one of the rare earth elements, facing the cathode but at a disposition and electrical potential so as to extract ions from the gas discharge and sputter the low-work-function material onto the cathode. By continuously replenishing the cathode film, high thermionic emissions and ion plasmas can be realized and maintained over extended operating periods.

An improved electrode operating mechanism for control of the discharge of carbon arc lamps for light fastness testing devices. Vertically spaced upper and lower electrode holders have a plurality of electrodes opposed to each other. Two vertical supports extend between upper and lower bases, the vertical supports each having a pair of spaced parallel guide rails extending therealong, each holder having laterally projecting arm members extending from the opposite ends thereof and between the rails. A cylindrical slide member is mounted on the end of each arm member and is slidably engaged in linear sliding contact with the surface of the parallel rails on the sides thereof away from the holders. First wires are attached to the cylindrical slide members on the lower electrode holders and extend upwardly through the upper base through axial bores in the upper cylindrical slide member, and two second wires attached to the upper holders extend upwardly through the upper base. The first wires are wound in one direction around two pulleys on a horizontal shaft on the upper base and the second wires are wound in the opposite direction around other pulleys on the shaft. When the shaft is rotated in one direction the electrodes are moved toward each other and when the shaft is rotated in the opposite direction the electrodes are moved away from each other.

An improved control system for controlling the position of an upper electrode in a carbon arc lamp. The system has a pulley with a line thereover, and a solenoid core is attached to one end of the line and is movable vertically in a solenoid coil connected in the circuit for supplying discharge current to the electrodes, and a control rod clutch is connected to the other end of the line which normally grasps and holds an electrode control rod on the lower end of which is mounted the upper electrode of the lamp. A balancing weight is provided on the core to balance the weight of the control rod clutch and electrode and a shield is provided around the solenoid coil to shield the arc between the electrodes from the magnetic field of the solenoid coil.

A carbon electrode for an arc lamp comprising a plurality of carbon rods joined together in desired length by use of an adhesive comprising metal or carbon powder or mixture thereof and method for preparation of said electrode.

This disclosure is concerned with automatically replenishable cold cathode structures and the like wherein the monitoring of a predetermined variation in electron beam performance caused by erosion of the cathode material generates control signals for advancing reserve cathode material into operative position.

An electrical discharge machine with automatically replaceable electrodes. The machine includes an electrode holder with a clamp operable to alternately receive and release an electrode, an electrode cartridge containing a plurality of stacked electrodes and a shuttle movable toward and away from the electrode holder. When the shuttle is moved toward the electrode holder, it removes an electrode from the cartridge and moves it into alignment with the electrode holder.

A detachable bag (13) and shroud (12) which combine to form a stripping apparatus (11) for stripping and collecting fibrous cladding material (27) from a pipe (25). The shroud (12) is adapted to be detachably and sealingly secured to the pipe (25) and the bag (13) is likewise secured to the shroud (12). The bag (13) includes a fastening means (20) to attach an inner envelope (16) thereof to the bottom opening (19b) of the shroud and an outer cover (17) which can be sealingly attached to the outerside of the shroud (12) enclosing the envelope (16) and fastening means (20). The envelope (16) and shroud (12) are each provided with "Velcro" closure strips (21) along their respective inner faces adjacent the fastening means (20) to enable the envelope (16) and shroud (12) to be sealingly closed independently of the other either side of the fastening means (20) to prevent external exposure to the contents of either during attachment and detachment of the bag from the shroud.

Graphite and/or carbon surfaces are coated with a titanium nitride coating by exposing the substrate to electric arc thermal spray process wherein titanium wire as the source of titanium and nitrogen is used as the propelling (atomizing) gas.

Threaded nipple for joining two electrode sections is provided with an integral ridge intermediate its threads for centering the electrodes in coaxial alignment.

Polypeptides capable of binding human IL-13 and/or of binding human IL-4 in the presence of IL-4 Rα can be used in medicine, in diagnosis and in screening for agonists/antagonists of IL-13/IL-4. One such polypeptide is shown in FIG. 1.

A process of a pixel electrode of a direct-sight type of reflection type liquid-crystal display device is simplified. A pixel electrode 120 of a reflection type liquid-crystal display device is formed of an aluminum film which is formed by sputtering. In forming the aluminum film, moisture is intentionally contained in atmosphere, and also a sample is heated. With this process, aluminum grains grow so that irregularities of μm order is formed on the surface of the aluminum film. The aluminum film thus formed allows the incident light to be irregularly reflected so that it is in a visually white muddy state. This is suitable to the pixel electrode for the reflection type liquid-crystal display device.

Methods and devices are disclosed for identifying objects over a surface and for tracking the position of said objects in relation to the sensing surface. The methods include the steps of providing an array of electrodes or coils that generating electromagnetic radiation having a individual characteristic frequencies of oscillation. Objects in proximity to the sensing surface(s) couple electromagnetically to the array of electrodes or coils, which then alters the characteristic frequency of one or more elements in the array. By monitoring the individual frequency shifts among the array elements, one or more objects in proximity to the surface can be sensed and identified. Quantitative identification and enhanced detection of the objects is achieved through the use of electromagnetic markers affixed or embedded in the objects in specified geometric patterns. In addition, a method is presented for scanning the sensing array, through the use of a second layer of electrodes that selectively mask or modulate the sensing field.

A method of retaining a solder mass within a solder-bearing component is provided and includes the steps of: (a) forming a plurality of fingers in the solder-bearing component at one edge thereof, with each finger being defined by a pair of slots formed in the solder-bearing component; and (b) interleaving a solder mass between the fingers such that the solder mass is securely held by the fingers. The solder-bearing component includes any number of different types of components where a solder mass is held thereby, e.g., leads, terminals, connectors, electromagnetic shields, etc.

An indirectly heated cathode C1 comprises a heater 1, a double coil 2, a mesh member 3, and a metal oxide 10. An electrical insulating layer 4 is formed on the surface of heater 1. Heater 1 is inserted into and positioned at the inner side of double coil 2. Mesh member 3 is disposed along the length direction of double coil 2 at the outer side of double coil 2. Double coil 2 is grounded by being connected to the ground terminal of heater 1 via a lead rod 7. Metal oxide 10 is held by double coil 2 and disposed to be in contact with mesh member 3. Metal oxide 10 and mesh member 3 are exposed to the outer side of indirectly heated electrode C1 so that the surface of metal oxide 10 and the surface of mesh member 3 make up a discharge surface and mesh member 3 is in contact with the surface part of metal oxide 10.

In general, this disclosure describes techniques for changing a sampling frequency of a digital signal. In particular, the techniques provide a more accurate way to determining a relative timing between a desired output sample and a corresponding input sample using a non-approximated integer representation of the relative timing. The relative timing between the desired output sample and corresponding input sample may be represented using a first component that identifies a latest input sample of the digital signal used to generate intermediate samples, a second component that identifies an intermediate sample, and a third component that identifies a timing difference between the desired output sample and the intermediate sample. Each of the components may be recursively updated using non-approximated integer values.

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.

An electrode assembly for use in an iontophoresis device for the transcutaneous administration of an active therapeutic species has a base layer of including a linking conductive base material which is consumed (oxidizes or reduces) preferentially to water, a first upper layer of sacrificial material coated on a first portion of the base layer wherein the sacrificial material is consumed preferentially to the linking conductive base material of the base layer. A second upper layer of non-conducting material is coated on a second portion of the base layer, the second upper layer being spaced from the first upper layer, connected by a narrow exposed linking area of the base layer material remaining exposed therebetween. During operation of an associated iontophoresis device, the sacrificial material will be sequentially consumed; the first upper layer will be fully consumed followed by the linking conductive base material of the exposed linking area of the base layer which severs the base layer thereby breaking circuit continuity disabling activity in the device. A visual indicator may be provided allowing a wearer to monitor the state of reaction of the linking area.

an image printing device comprises a transfer roller configured to transfer a printing medium in a transfer direction, a first sensor configured to detect a rotation amount of the transfer roller, a carriage mounted with a printhead. The image printing device further comprises a second sensor mounted to the carriage and configured to detect the printing medium. The image printing device further comprises a reference member disposed at a position opposing to the second sensor and a drive transmission mechanism configured to move the reference member in conjunction with a rotation of the transfer roller. The image printing device determines a position of an origin of the transfer roller based on detection results of the first sensor and the second sensor.

An electrode assembly for use in an iontophoresis device for the transcutaneous administration of an active therapeutic species has a base layer of including a linking conductive base material which is consumed (oxidizes or reduces) preferentially to water, a first upper layer of sacrificial material coated on a first portion of the base layer wherein the sacrificial material is consumed preferentially to the linking conductive base material of the base layer. A second upper layer of non-conducting material is coated on a second portion of the base layer, the second upper layer being spaced from the first upper layer, connected by a narrow exposed linking area of the base layer material remaining exposed therebetween. During operation of an associated iontophoresis device, the sacrificial material will be sequentially consumed; the first upper layer will be fully consumed followed by the linking conductive base material of the exposed linking area of the base layer which severs the base layer thereby breaking circuit continuity disabling activity in the device. A visual indicator may be provided allowing a wearer to monitor the state of reaction of the linking area.

This disclosure relates to a micro manipulator having a simple structure and having high possibility of recording a biological signal of a neuron at a desired position by improving positioning resolution of an electrode disposed adjacent to a subject's brain neuron or an electrode holder attached with the electrode. The micro manipulator according to the disclosure includes: a motor which includes a shaft and a vibration portion; a mobile which is connected to the shaft so as to be movable along the shaft; and a frame which supports the motor, wherein an electrode is connected to the mobile in a direction parallel to a longitudinal direction of the shaft, and wherein when the mobile moves linearly in accordance with a vibration of the shaft due to the vibration portion, the electrode moves linearly.

A touch apparatus, a transparent scan electrode, a geometric electrode structure and a manufacturing method thereof are disclosed. The transparent scan electrode structure comprises a first transparent scan electrode, a second transparent scan electrode and an isolative layer. The first transparent scan electrode comprises a first resistance region and a second resistance region. A resistance value of the second resistance region is higher than that of the first resistance region. The isolative layer is disposed between the first transparent scan electrode and the second transparent scan electrode.

A welding head is provided. The welding head includes a bracket and a plurality of blocks coupled to the bracket. Each of the plurality of blocks has a contact tip. The contact tips are adapted to receive an electrode. Further, at least one of the plurality of blocks is capable of variable positioning relative to the bracket.

Disclosed is a method and apparatus for charging electrically powered devices. In accordance with the invention, the device is powered by two storage devices. One storage device is capable of receiving a substantial charge very rapidly while the other storage device requires a longer time to receive a charge. The advantage is that the powered device can be used almost instantly and continually while at the same time rebuilding electrical charge.

Disclosed is a method and apparatus for charging electrically powered devices. In accordance with the invention, the device is powered by two storage or charge receiving devices. One of these devices is capable of receiving a substantial charge very rapidly while the other device requires a longer time to receive a charge. The advantage is that the powered device can be used almost instantly and continually while at the same time rebuilding electrical charge. The present invention further relates to a system for protecting the charging device from being damaged from an electrical surge, such as from a lightening strike.

A device and method to facilitate wearing of jewelry items which have hoop and clasp closures, comprising: a base or clamp for stabilizing the device on a surface; a wire guide member protruding from the base and affixed securely thereto, the wire guide having hook at its opposite end for engaging a distal hoop or link on an unclasped jewelry item, thereby permitting a person to: a. engage one end of a jewelry object with a device, b. open a complementary jewelry clasp with one or both free hands, c. position a wrist or neck within the bight of the jewelry item, d. close the clasp upon the hoop link, and e. slidably remove the clasped jewelry item from the device.

The invention relates to a combination cylinder, including a service brake cylinder as an active service brake with at least one service brake piston actuated by a pressure medium, the piston actuating a brake mechanism via a service brake piston rod, and further including a spring-loaded brake cylinder as a passive parking brake with a spring-loaded brake piston actuated by a pressure medium against the action of at least one pre-loaded spring, wherein the spring-loaded brake piston in the event of the parking brake is actuated transmits the power of the at least one pre-loaded spring by means of a power-transmitting transmission to the service brake piston rod. According to the invention, the transmission is designed such that the movements of the spring-loaded brake piston and the service brake piston rod are coaxial and the power transmission increases with increasing stroke of the spring-loaded brake piston.

A piston-cylinder assembly, in particular for pneumatic, hydraulic or mechatronic systems, includes a cylinder housing and a piston. The piston is coupled to a piston rod and disposed in the cylinder housing such that it can move along a longitudinal axis. A measuring device for detecting piston or piston rod position is provided inside the cylinder housing.

A metallic protecting cover is formed from two axially split members, i.e. a first protecting cover member secured to a mounting eye, and a second protecting cover member having an overall length shorter than that of each of first and second cylinders and having a predetermined gap between itself and the second cylinder. The second protecting cover member is press-fitted into the first protecting cover member secured to the mounting eye to integrate the first and second protecting cover members into the protecting cover. Accordingly, the lower end of the second cylinder can be caulked in a state where the second protecting cover member has been temporarily assembled to the second cylinder. Thus, it is possible to ensure the required strength of the protecting cover and to increase the degree of freedom in assembly process.