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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8028976 | Machining fixture with self-contained hydraulics A new arrangement for machining parts is disclosed. The parts to be machined are mounted on fixture plates on a fixture. Using a stationary hydraulic line, hydraulic equipment is then pressurized by a pump within the fixture. The pump is mechanically powered by a se... | 10/04/2011 |
| 7878491 | Clamp with driving unit An exemplary clamp includes a holder, a moving unit, a fixing arm, and a driving unit. The moving unit includes a push block, a connecting member, and a guiding member. The guiding member is fixed on the holder. The connecting member connects the push block and the ... | 02/01/2011 |
| 7866641 | Machining center adaptor having a fluid-emitting orifice arrangement for cleaning work piece chucks An adaptor and its method of use for cleaning the work piece chuck clamping surfaces of a turning center (lathe). An adaptor of the present invention includes a number of orifices that are arranged and oriented to direct pressurized fluid (e.g., air and/or another f... | 01/11/2011 |
| 7442257 | Substrate processing apparatus and substrate processing method The present invention relates to a substrate processing apparatus useful for plating a substrate or processing a substrate by dipping a substrate in a processing liquid. A substrate processing apparatus of the present invention includes: a loading/unloading area for... | 10/28/2008 |
| 7380776 | Conformal vacuum cup apparatus and method A conformal vacuum cup provides a machine tool attachment fitting usable in a flexible-track drill system. Using multiple, independently articulated stiffeners, the conformal vacuum cup conforms to the contour of complex aerostructure surface shapes. The individual ... | 06/03/2008 |
| 7367891 | Techniques for controlling transfer of torque using detent members responsive to radial force A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The ... | 05/06/2008 |
| 7367238 | Test apparatus using a pneumatic collet and method to clamp a bar A pneumatic collet assembly has a housing, a piston, a collet, and ball bearings. The piston is disposed within the housing. A bore within the piston receives the collet. The collet has a base and fingers. The fingers of the collet define a center channel or bore co... | 05/06/2008 |
| 7331093 | Pieces hold-unit for workstations, transfer machines and like A pieces hold-unit for machine tools such as workstations, transfer machines and milling machines is provided which comprises two parallel supports (12, 13) placed on a plane with at least a first of said support guided, controlled and movable with respect to... | 02/19/2008 |
| 7275899 | Machining apparatus with coolant-operated clamp device Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged f... | 10/02/2007 |
| 7247778 | Addressable pneumatic valve system An addressable valve system is described wherein a plurality of valves are embedded into a single, compact valve block. Each valve comprises a piston moving in a bore in the block. A magnet embedded in the piston is positioned within a coil. When energized, the coil... | 07/24/2007 |
| 7229068 | Vane clamp assembly A clamp assembly having a body, a power supply, a vane, jaw arm and stop is provided. The power supply is coupled to the body, and the vane located in the body. The power supply pivots the vane about an axis between first and second positions. The jaw arm is coupled... | 06/12/2007 |
| 7210675 | Versatile palletized work holding system A versatile palletized system provides for work to be held in place even while a top plate (7) as one type of workholder web is transferred. Movement can be provided by a coordinated topographically fixed movement web (39) which may have hydraulic pist... | 05/01/2007 |
| 7180586 | System for detection of wafer defects Fast on-line electro-optical detection of wafer defects by illuminating with a short light pulse from a repetitively pulsed laser, a section of the wafer while it is moved across the field of view of an imaging system, and imaging the moving wafer onto a focal plane... | 02/20/2007 |
| 7156384 | Multi-purpose flexible jaw universal vise with removable clamp feature A flexible hydraulic vise that is actuated hydraulically along the entire length of the jaw travel. The vise includes master jaws disposed in a complementary shaped tracks, connected to pistons by pins. Top jaws with spring loaded ball detents are secured to the mas... | 01/02/2007 |
| 7144056 | Detection and handling of semiconductor wafers and wafers-like objects An end-effector includes multiple vortex chucks for supporting a wafer. Vortex chucks are located along the periphery of the end-effector to help prevent a flexible wafer from curling. The end-effector has limiters to restrict the lateral movement of a supported waf... | 12/05/2006 |
| 7134649 | Conformal vacuum cup apparatus and method A conformal vacuum cup provides a machine tool attachment fitting usable in a flexible-track drill system. Using multiple, independently articulated stiffeners, the conformal vacuum cup conforms to the contour of complex aerostructure surface shapes. The individual ... | 11/14/2006 |
| 7112026 | Cabinet lifting device A device for lifting and supporting a cabinet during installation thereof and including elongated support legs and elongated dowels connected to the support legs for preventing the movement of the support legs and for maintaining the device at a substantially stable... | 09/26/2006 |
| 7044460 | Concealed fastener, system, and associated methods A device for affixing a decking member to a joist includes a jig body positionable atop a pair of spaced-apart decking members positioned atop a joist. The jig body has an angled bore having a bottom end extending through a bottom face of the jig body, the bottom en... | 05/16/2006 |
| 7041989 | Lithographic apparatus and device manufacturing method A lithographic apparatus is disclosed. The apparatus includes an illumination system arranged to provide a radiation beam, an article support configured to support an article to be placed in a beam path of the radiation beam, a multipolar clamp configured to provide... | 05/09/2006 |
| 7000911 | Motor pack for automated machinery A motor pack for an electrically driven tool includes at least one electric motor and a linearly displaceable member coupled to the electric motor such that the linearly displaceable member is displaced axially by operation of the at least one electric motor. The mo... | 02/21/2006 |
| 6946968 | Hydraulic stroke measuring system A hydraulic stroke measuring system for accurately determining the cylinder rod position within a hydraulic cylinder. The hydraulic stroke measuring system includes a measurement shaft slidably positioned within a housing unit, a shaft bracket attachable between the... | 09/20/2005 |
| 6899788 | Article holders that use gas vortices to hold an article in a desired position An article (e.g. a semiconductor wafer) is held in an article holder by means of a number of gas flows emitted from gas vortex chambers. Some of the gas flows act to cool an adjacent article portion more than the other gas flows. For example, some of the vortex cham... | 05/31/2005 |
| 6844929 | Apparatus and method for holding and transporting thin opaque plates A device is disclosed for supporting semiconductor wafers or other polished, opaque plates for processing or metrology in a vertical orientation, where the wafer loading and unloading occurs in a horizontal orientation. The device consists of a pallet designed with ... | 01/18/2005 |
| 6786477 | Actuator apparatus An actuator (10) for use in installing or extracting piles and the like has a common member (12) supported at (14) and having jaws (16) for gripping a pile. Within the block (12) a double-acting piston (18) is located alongs... | 09/07/2004 |
| 6788991 | Devices and methods for detecting orientation and shape of an object Embodiments of the present invention provide a system and method for receiving and dropping-off a horizontally oriented flat substrate, for example a semiconductor wafer, on a substrate support structure and verifying the correct positioning and orientation (level) ... | 09/07/2004 |
| 6776082 | Fluid powered rotary indexer A fluid powered rotary indexer includes a housing with a piston rotatably mounted therein. The housing includes ports providing fluid communication to opposing compartments within the housing so as to rotate the piston clockwise or counterclockwise upon the introduc... | 08/17/2004 |
| 6758467 | Work fixing clamp system A clamp system includes a plurality of clamping devices arrayed along at least a first hydraulic supply loop and a plurality of support devices arrayed along at least a second hydraulic supply loop. The clamping devices may include vertical rotating clamping devices... | 07/06/2004 |
| 6748841 | Railroad hopper car gate operating system A mechanized device for externally grabbing and rotating the operating capstan of a railroad car bottom discharge gate is disclosed which utilizes a pair of spaced converging, opposed normally open gripper fingers operable between a closed and an open position, oper... | 06/15/2004 |
| 6711797 | Hydraulic tooling fixture A tooling fixture includes a plurality of cylinders in a module fitted with pistons in which a portion thereof extends from the surface of the module. The cylinders are connected with a fluid source by a control valve assembly. The control valve assembly controls th... | 03/30/2004 |
| 6702302 | Edge handling wafer chuck An edge handling chuck which operates to maintain a semiconductor wafer at a desirable orientation while rotating the wafer at high speeds is disclosed. The edge handling chuck consists of a cylindrical plate which holds a silicon wafer using multiple spr... | 03/09/2004 |
| 6655672 | Air bearing drive system An air bearing drive system has a base, a moving portion, an air bearing for forming an air film gap between the base and the moving portion, air nozzles and a suction inlet. The air nozzles and suction inlet are formed on the base. The air nozzles blow a... | 12/02/2003 |
| 6634072 | Machining apparatus and equipment of thin section long workpiece There is a workpiece clamp device 10 for horizontally holding a thin section long workpiece 1 having a constant section shape or having the same section shape in spaced positions in a longitudinal direction in two positions of the same section shape. The ... | 10/21/2003 |
| 6609705 | Device for the floating clamping of a workpiece to be machined A device for the floating clamping of a workpiece to be machined. The device has a pair of clamping pistons and a pair of clamping jaws which are capable of being advanced onto mutually opposite sides of the workpiece with the aid of the two clamping pist... | 08/26/2003 |
| 6591665 | Modular engine delivery apparatus An apparatus for delivering an engine to a dynamometer is provided with an exhaust system, coolant system, electrical system, and an engine mounting system. The systems decrease the time required to dress an engine while increasing test reliability and th... | 07/15/2003 |
| 6581921 | Cabinet installation device The present invention is a cabinet installation device that is simple in design so as to provide for an apparatus that is not only user friendly, but is successful in operation for achieving the desired results. Enabling such an apparatus, the present inv... | 06/24/2003 |
| 6572091 | Magnetic locking vacuum chuck system An apparatus for chucking a workpiece to a worktable includes a plurality of magnetically activated vacuum flow check valves, which uses a magnet within its body, to block a port through which atmosphere can flow to a vacuum source. The magnet blocking th... | 06/03/2003 |
| 6550127 | Device for holding a part and application of the device A device for holding a part comprises a retainer member provided for applying and holding the part and having a convexly spherical surface section which is received in a concavely spherical surface section of a receptacle member. To enable movement of the... | 04/22/2003 |
| 6523819 | Support device with floating pins bag A device particularly adapted to engage an irregular bottom surface of an object and then carry that object includes a support block. In the support block is a set of longitudinally spaced apart upright bores. On each side of the bores in a top wall of th... | 02/25/2003 |
| 6513802 | Quick change tooling system for a vacuum holding fixture for a thermoformed part A vacuum holding fixture for a thermoformed part carries a base attachment plate which is releasably coupled to the top wall of a vacuum support box having a vacuum passage sealed to a vacuum passage within the attachment plate and a vacuum chamber within... | 02/04/2003 |
| 6513796 | Wafer chuck having a removable insert A vacuum chuck/insert assembly (100) for firmly supporting a semiconductor wafer (106) during wafer processing. The vacuum chuck comprises a chuck (102) and a removable insert (104). The chuck includes a base (108) and a plurality of spacers (112) for hol... | 02/04/2003 |
