...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 |
| 7441994 | Machine tool having a C-shaped frame A machine tool includes a machine frame, a worktable, and a spindle unit. The worktable is movable on the machine frame along a first horizontal direction, a second horizontal direction perpendicular to the first horizontal direction, and a vertical direction. The s... | 10/28/2008 |
| 7216415 | Pallet scuffing apparatus A scuffing device (30) arranged to impart texture to a plastic pallet surface (12) having a plurality of cutting members (34) axially aligned and mounted adjacent each other, the cutting members (34) having radial toothed edges for cuttin... | 05/15/2007 |
| 7207753 | Apparatus and method for shaping an edge of a tile An apparatus and method for shaping an edge of a tile. The preferred embodiment enables an operator to place a tile between an elevator and a reference plate. The operator snugs the edge of the tile up against a reference plate, and causes the elevator to press the ... | 04/24/2007 |
| 7168896 | Cutting tool with replaceable cutting inserts A cutting tool for, e.g., dressing electrode tips includes a toolholder having an opening extending through the toolholder from a top of the toolholder to a bottom of the toolholder along a central axis of the toolholder, and a plurality of insert mounting pockets d... | 01/30/2007 |
| 7018147 | Arrangement structure of machine tool The present invention provides an arrangement structure of a machine tool which is capable of compactly arranging electrical wires and pipes for coolant and the like without impairing support stiffness for a column, and simplifying the arrangement structure, while a... | 03/28/2006 |
| 6946050 | Method for flange bonding The invention is a method for joining two components of a fluid system. The method involves forming a first flange on a first fluid component and placing the first flange in an abutting relationship with a second flange that is formed on a second fluid component. Th... | 09/20/2005 |
| 6938321 | Pallet scuffing apparatus A scuffing device (30) arranged to impart texture to a plastic pallet surface (12) having a plurality of cutting members (34) axially aligned and mounted adjacent each other, the cutting members (34) having radial toothed edges for cuttin... | 09/06/2005 |
| 6918823 | Double grinding wheel A device for processing welding electrodes includes a driving motor, a shaft, a housing and a first grinding wheel rotatably mounted on the shaft. The first grinding wheel is driven by the driving motor through the shaft. The lateral openings formed in the housing a... | 07/19/2005 |
| 6908266 | Apparatus for forming a microlens array mold An apparatus for making microlens molds and microlens array molds is described which utilizes a forming element having a rotating half radius diamond cutting member. A substrate is alignably arranged with the diamond cutting member so that the cutting member can mil... | 06/21/2005 |
| 6881018 | Apparatus and method for shaping an edge of a tile An apparatus and method for shaping an edge of a tile. The preferred embodiment enables an operator to place a tile between an elevator and a reference plate. The operator snugs the edge of the tile up against a reference plate, and causes the elevator to press the ... | 04/19/2005 |
| 6773204 | Dual guide pad resurfacer An apparatus for resurfacing a pair of guide plugs includes a turntable rotatably mounted on a frame having cutting tools Interacting with resurfaceable guide plugs mounted on a reciprocating slide assembly which includes a guide support block adapted for reciprocat... | 08/10/2004 |
| 6668692 | Process and device for the control of a motorized feed drive The invention consists of a process for the control of the motorized feed drive for the movable workplace table of a machine tool, in particular the rolling carriage of a circular saw. The manual force that is applied by the operator in direction of the f... | 12/30/2003 |
| 6364818 | CNC machine center with double-speed shifting feature in X and Z axes A CNC machine center with double-speed shifting feature in X and Z axes, comprises an upright stand for disposing a worktable assembly and a tool holder assembly. The worktable assembly and the tool assembly are relatively movable with each other in two p... | 04/02/2002 |
| 6319104 | Tool for resurfacing machine A tool for use in an abrading or resurfacing machine includes a head portion, a shank portion and a base portion, the shank portion joining the head and base portions and having a shape that tapers outwardly from a narrow neck where it joins the head port... | 11/20/2001 |
| 6059703 | Device with at least one movement unit A device for numerically controlled (NC) manufacturing, manipulating and measuring apparatuses has a frame structure with peripheral force introduction locations and at least one movement unit with peripheral force introduction locations. At least three a... | 05/09/2000 |
| 5893691 | Machine tool In a machine tool provided with a column 4 mounted on a back end portion of a bed 1 having a table 2, and a spindle head 20 arranged in a vertically movable manner to the column 4, both sides of an upper portion of the column 4 is connected with both side... | 04/13/1999 |
| 5538373 | Machine tool vibration isolation system A machine tool isolation system is disclosed. The preferred system includes a pair of platforms connected by a plurality of legs. A tool is typically connected to one platform, and a workpiece to the other. The legs are able to move one platform with resp... | 07/23/1996 |
| 5489168 | Metrology instrument arm system The present invention relates generally to a metrology framework for determining the position of a first object, such as an operator, relative to a second object when the first object is moved relative to the second object. The metrology framework compris... | 02/06/1996 |
| 5468101 | Wood working machine and table translation apparatus for the same A table translation apparatus for a wood working machine is disclosed wherein a table can be repetitively moved at a high speed within a small distance to enhance the working efficiency for wood. A pair of front and rear screw shafts are supported for rot... | 11/21/1995 |
| 5388935 | Six axis machine tool A machine such as a machine tool includes a pair of spaced platforms. One platform may mount an operator such as a tool in a spindle, and the other platform may mount an object such as a workpiece. The spaced platforms are joined by six powered and extens... | 02/14/1995 |
| 5354158 | Six axis machine tool A machine such as a machine tool includes a pair of spaced platforms. One platform (11, 31, 185, 72, 159, 142) may mount an operator such as a tool in a spindle and the other platforms (10, 20, 180, 170, 144, 163) may mount an object such as a workpiece. ... | 10/11/1994 |
| 5028180 | Six-axis machine tool This invention relates to a six-axis machine for locating an operator with respect to an object, and more particularly to a versatile machine tool in which the tool can be moved in three lineal directions and three rotational directions in relation to the... | 07/02/1991 |
| 4988244 | Six-axis machine tool A machine includes a pair of spaced supports, one of which may mount an operator such as a tool in a spindle and the other of which may mount an object such as a workpiece. The spaced platforms are joined by six powered and extensible legs joined to the r... | 01/29/1991 |
| 4987668 | Machine-tool The spindle of a machine-tool is mounted on a carriage movable along a horizontal transverse member which is carried by the columns of a part of the frame of the machine having the shape of a closed porch, and which is situated in front of these columns. ... | 01/29/1991 |
| 4909682 | Table positioning device for metal-cutting machine tools The herein proposed invention relates to mechanical engineering. The essence of the invention resides in the fact that a contrivance for setting the table position includes two disks provided with drives for moving the table in a horizontal plane and disp... | 03/20/1990 |
| 4842456 | Forming unit for electrode chip of welder Apparatus for forming welding electrode chips in which the cutters engage the electrode chips to be formed while the electrode chips remain installed in the welding unit. The cutters are elastically supported to accommodate movement of the electrode chips... | 06/27/1989 |
| 4830074 | Router stand with guard assembly A tool stand including a vertical support panel with a horizontal work-supporting table mounted for vertical adjustment thereon. The support panel horizontally mounts a power router with the router bit overlying the table. An elongate retainer rail mounts... | 05/16/1989 |
| 4685845 | Guide pad resurfacing apparatus A babbit guide plug resurfacing apparatus includes a motorized clamp assembly for holding a circular saw guide in a fixed position so that guide plugs on both sides thereof are exposed, and for moving the saw guide into engagement with an abrading assembl... | 08/11/1987 |
| 4640651 | Computer memory disc and method for machining same A method for machining a thin workpiece to equalize machining induced stresses within the workpiece. The method produces a thin workpiece on which the machining lines intersect on the workpiece's machined surface. The method includes passing the workpiece... | 02/03/1987 |
| 4553885 | Apparatus for the initial and improvement machining of active surface of steer cams, particularly of brake spanners An apparatus for original and improvement machining of the active surfaces of steer cams, mainly of brake spanners, in which the kinematic chain connecting together a work piece being rotation-safely clamped and a basic slide comprises a non-reversing fre... | 11/19/1985 |
| 4544310 | Clutch and transmission mechanism A mechanism for machining an object, such as a key blank, to a desired shape at a plurality of successive positions in an axial direction of the object, includes a holder for the object. The holder is axially movable by means of a transfer mechanism with ... | 10/01/1985 |
| 4364696 | Edge finishing machine A material working machine for edge finishing of workpieces of different sizes and shapes and of different materials has a material work station supported by a table like construction with a mechanical cutting tool mounted at the work station. The machine... | 12/21/1982 |
| 4242019 | Milling machine A milling machine includes a C-shaped frame, tool support member movable in a vertical direction, a saddle member movable in a transverse direction, a work table movable in a longitudinal direction, a tool drive unit and two oppositely positioned and remo... | 12/30/1980 |
| 4198183 | Motion translation apparatus A motion translation apparatus and method is provided which is particularly suitable for use with machine tools wherein the workpiece is moved relative to a tool. A stationary guideway member having a track of ball bearings mounted partially projecting fr... | 04/15/1980 |
| 4173920 | Plunge shaving machine A gear shaving machine employing plunge cut (radial infeed with no lateral traverse) in which the rate of relative infeed between a meshed gear-like tool and a work gear is controlled by hydraulic escapement mechanism.... | 11/13/1979 |
| 4156307 | Fabrication process for noncircular vacuum seal An improved process for fabricating a sealing flange assembly useful for oval and other noncircular access ports in high vacuum equipment is disclosed. The process is applicable to sealing flange assemblies of the type which include relatively hard metall... | 05/29/1979 |
| 4128119 | Apparatus for processing workpieces in the form of short-length elongate timber waste into usable timber An apparatus for processing short lengthed, elongate waste timber workpieces to usable timber beams of relatively long length includes a cutter device for cutting wedge-shaped tenons into the ends of the elongate workpieces, a gluing device for applying a... | 12/05/1978 |
| 3937873 | Engraving machines In an engraving machine for use in making watermarks in which a table, on which a plate to be engraved and a model are to be mounted, is reciprocable longitudinally by a first lead screw and an engraving head is carried by an arm and provided with a style... | 02/10/1976 |