Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7371151 | Lens stocking apparatus and lens processing system having the same A lens stocking apparatus capable of stocking a plurality of lenses, which has a first stage, on which a plurality of trays respectively accommodating lenses are mountable, for transferring a tray, a vertically movable second stage, on which a plurality of trays res... | 05/13/2008 |
| 7354335 | CMP apparatus and load cup mechanism In accordance with one embodiment of the invention, a load cup mechanism is provided for loading and unloading apparatus such as a CMP apparatus. The load cup mechanism, configured to load a work piece into and to unload a work piece from the apparatus, comprises a ... | 04/08/2008 |
| 7338348 | Dust collection system for a belt sander An electrically powered belt sander comprising a housing, a dust flow path defined by the housing, a motor mounted in the housing at a first location and having an output shaft, a fan connectable to the motor output shaft and rotateably mounted in the housing at a s... | 03/04/2008 |
| 7335090 | Substrate processing apparatus and substrate handling method A substrate processing apparatus includes: a carrier holding unit for holding a carrier which houses a substrate; a substrate holding mechanism for holding a substrate when a predetermined process is executed on the substrate; and a substrate transfer mechanism for ... | 02/26/2008 |
| 7160175 | Attitude control device and precision machining apparatus An attitude control device and a precision machining apparatus capable of accurately controlling the attitude of an object mounted on the attitude control device according to grinding stages. The attitude control device is constituted by a first flat-plate member | 01/09/2007 |
| 6932679 | Apparatus and method for loading a wafer in polishing system The present invention includes a polishing pad or belt secured to a mechanism that allows the pad or belt to move in a reciprocating manner, i.e. in both forward and reverse directions, at high speeds. The constant bidirectional movement of the polishing pad or belt... | 08/23/2005 |
| 6648979 | Apparatus and method for wafer cleaning A semiconductor wafer is cleaned while a sponge or brush is pressed against the wafer with a constant forced applied utilizing a bias in a constant force pencil. The wafer is cleaned in the state wherein a collapsing portion of the constant force pencil w... | 11/18/2003 |
| 6638150 | Workpiece holder for a machining apparatus and a corresponding cross-cut machine For retrofitting conventional machining apparatuses, in particular cross-cut machines, with a workpiece holder, the invention proposes a workpiece holder with at least one continuous clamping chain that is provided on one side with a plurality of clamping... | 10/28/2003 |
| 6413356 | Substrate loader for a semiconductor processing system A substrate loader for a semiconductor substrate processing system that generally includes a wall having an exterior side with one or more apertures formed therethrough and a related method of loading a processing system. A door assembly is movably couple... | 07/02/2002 |
| 6375556 | Grinding apparatus for grinding workpieces The apparatus includes a frame and a holder rotatably secured to the frame for releasably holding a first workpiece of the workpieces. A mechanism is provided for rotating the holder from a loading station to a grinding station and a grinder is movably se... | 04/23/2002 |
| 6155908 | Work-loading method and surface-grinding apparatus with work position deviation-adjusting mechanism There are provided with a carrier having a work-holding hole in which a work is fitted and held, a surface plate for grinding the work held on the carrier, and exciter for exciting the carrier to adjust a position of the work deviated from the work-holdin... | 12/05/2000 |
| 6149498 | Semiconductor wafer handling system A unidirectional gate disposed between interconnecting fluid transport regions in a manufacturing process. The gate allows workpieces to pass from a first transport region to a second transport region but prevents them from returning to the first region a... | 11/21/2000 |
| 6113753 | Systems and methods for making a magnetic recording medium on a flexible metal substrate A method is provided for processing a metal foil sheet to produce magnetic recording media. The method comprises providing an elongate metal foil sheet having a first side and a second side. The sheet is advanced through a plurality of processing stations... | 09/05/2000 |
| 5951379 | Bumper polishing machine A bumper finishing apparatus comprises a guided fixture for carrying a bumper past a fixed rotary finishing head. An external drive moves the fixture as guided by a guide profile to coordinate travel of the bumper past the finishing head so that the finis... | 09/14/1999 |
| 5921850 | Apparatus for loading a workpiece into a through-feed mechanism A loading apparatus (14) loads a workpiece (16) into a through-feed mechanism (20, 22, 24) which advances the workpiece (16) through a processing device (12) at an advancement speed. The loading apparatus (14) includes a roller assembly (30, 32) which gri... | 07/13/1999 |
| 5865670 | Wafer demount apparatus Wafer demount apparatus automatically demounts and transports a polished semiconductor wafer to an inspection station. The apparatus includes a bridge located between a polishing block supporting wax-mounted wafers and an offload conveyor. The bridge fill... | 02/02/1999 |
| 5779426 | Loading and unloading unit for polishing apparatus A polishing apparatus has a turntable and a top ring for gripping a semiconductor wafer to be polished by an abrasive cloth on the turntable. The polishing apparatus incorporates a loading and unloading unit having a supply holder for holding and supplyin... | 07/14/1998 |
| 5653623 | Polishing apparatus with improved exhaust A polishing apparatus for polishing a surface of a workpiece such as a semiconductor wafer is installed in a clean room. The polishing apparatus includes a polishing section having a turntable with an abrasive cloth mounted on an upper surface thereof, a ... | 08/05/1997 |
| 5584747 | Shot blasting apparatus for polishing and cleaning wheel An aluminum wheel having a side on which an annular groove is formed is stably led to a polishing and cleaning station in a compact shot blasting apparatus in which the aluminum wheel is uniformly polished and cleaned, and in which an inlet guide way and ... | 12/17/1996 |
| 5367836 | Automatic drill loader An automatic drill loader is used with a drill grinding machine to automatically present drills to the drill grinding machine workhead for being ground thereat and to carry ground drills to a storage receptacle. The automatic drill loader comprises a maga... | 11/29/1994 |
| 5363598 | Machine tool capable of grinding a workpiece with a truing apparatus A machine tool having a grinding wheel for grinding a workpiece mounted on a table. The machine tool is provided with a truing apparatus for truing the grinding wheel and a measuring device for measuring the diameter of the grinding wheel after every trui... | 11/15/1994 |
| 5347761 | Method for determining the deformation of workpiece on grinding machine A method for determining the deformation of workpiece on a grinding machine is proposed, in which the deformation of workpiece can be determined without using the less reliable initial deformation. Suppose the deflection at the beginning and the final deflecti... | 09/20/1994 |
| 5347896 | Automated collet loading for the manufacture of contact lenses An apparatus is provided for automatic, intermittent feed of workpieces into a lathe. The apparatus includes a collet having a side entry for receiving workpieces and a workpiece positioning aperture, in alignment with the lathe spindle, for finally posit... | 09/20/1994 |
| 5181346 | Thru-feed lapping apparatus An automated lapping system employing a rotating table with a horizontal lapping surface and one or more parts tracks with escapement mechanisms for regulating the rate at which parts cross the lapping table. Each parts track is suspended above the rotati... | 01/26/1993 |
| 5148638 | Apparatus for grinding an annular workpiece An apparatus for grinding annular workpieces has a predetermined number of grinding stations including an upstream station and a downstream station, the stations are spaced a predetermined distance from one another along a straight path, a holder at each ... | 09/22/1992 |
| 5097630 | Specular machining apparatus for peripheral edge portion of wafer A specular machining apparatus for giving a specular machining or mirror-like surface to a peripheral edge portion, in particular a chamfered portion, of typically a semiconductor wafer such as a silicon wafer. This mirror-like surface is provided to smoo... | 03/24/1992 |
| 5042203 | Abrasive disc exchange apparatus for use in vertical-spindle grinding machine An abrasive disc exchange apparatus for use in a vertical spindle grinding machine includes a cover member surrounding an abrasive disc, and has an opening disposed in a radial direction of the abrasive disc for the passage of the abrasive disc therethrou... | 08/27/1991 |
| 5027563 | Work transfer device of grinding machine A workpiece transfer device of a grinding machine is provided with an arm having a suction pad thereon for transferring ground workpieces. Since air is injected from the suction pad when the arm is in a standby position, coolant and grinding chips are not... | 07/02/1991 |
| 5016397 | Method and apparatus for removing wrappers from coin rolls An apparatus for removing wrappers from coin rolls comprises a cascade type vibrating feeder bowl for aligning wrapped coin rolls and feeding them serially to the upper end of a coin roll chute that slopes downwardly to a lower end. A pair of contra-rotat... | 05/21/1991 |
| 4944119 | Apparatus for transporting wafer to and from polishing head Apparatus for transporting a wafer into position against the pressure head of apparatus for polishing the wafer. The transport apparatus includes a dolly for positioning a wafer over a transport head assembly. The transport head assembly removes the wafer... | 07/31/1990 |
| 4930952 | Glasses frame carrier for a reproducing machine A glasses frame carrier for a reproducing machine, of the type comprising a base plate (1), two parallel strips (8, 9) slidably mounted on the base plate are relatively movable toward and away from each other, and a device for centering the glasses frame ... | 06/05/1990 |
| 4769954 | Apparatus for supporting and grinding an edge of a planar glass workpiece An improved structure for supporting and positioning a planar glass workpiece within a glass grinding apparatus is disclosed. Three radially extending carriage assemblies are provided between a lower pan and an upper supporting platform. Each of the carri... | 09/13/1988 |
| 4753047 | Transferring and loading device for honeycomb structures A transferring and loading device for honeycomb structures including a movable hollow arm having a suction duct communicating with suction means, a perforated plate secured to an end of the movable hollow arm, and movable arm driving means for rotating sa... | 06/28/1988 |
| 4651472 | Method of and machine for grinding rotary workpieces The grinding of successive workpieces in a surface grinding machine with automatic transport of workpieces to and from the grinding station is interrupted at preselected intervals to replace the workpiece at the grinding station with a pattern which is co... | 03/24/1987 |
| 4563838 | Apparatus comprising a machining tool for machining rollers An apparatus having a machining tool (52) for machining rollers (40) having a marked curvature and rotating while being machined contains two guiding disks (12,38) and a supporting disk (18) which are pivoted. The guiding disks (12,38) surround roller (40... | 01/14/1986 |
| 4562669 | Machine for grinding cylindrical workpieces A grinding machine for grinding the peripheral surface of a cylindrical workpiece having a rotatable axle extending from it by a rotating grinding roller has a feeding device which grips the axle of the workpiece and advances the workpiece against the per... | 01/07/1986 |
| 4519166 | Workpiece handling apparatus for grinding machines Workpiece handling apparatus for use in grinding machines wherein a pair of unground workpieces can be transported from holding or feed apparatus to a respective pair of load positions at the grinding wheel and simultaneously unload a pair of finished or ... | 05/28/1985 |
| 4434583 | Automatically adjustable workpiece guide and feed mechanism An automatically adjustable mechanism for feeding or guiding workpieces along a predetermined flow path from a first position toward a second position adjacent a centerless grinder work rest. The mechanism includes a guide assembly having a pair of parall... | 03/06/1984 |
| 4426811 | Method of and apparatus for grinding the edges of glass sheets A method of grinding glass sheets whose edges are polygons that are not symmetrical about a point is carried out in an apparatus having a supply station for supporting a stack of such sheets with all of the sheets in the stack in vertical registration, a ... | 01/24/1984 |
| 4373296 | Deburring apparatus for workpieces A deburring apparatus for finishing workpieces includes machines having rotary tools and a gyro-finishing machine. The workpieces are conveyed by an intermittently-driven charging conveyor with a given pitch. The workpieces are transferred from the convey... | 02/15/1983 |
