...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 |
| 4426893 | High production serrator A machine for serrating the flanks of the teeth of a gear-like tool for shaving gears in which a generating, relative motion equivalent to rolling the tool on a rack is provided and in which one of a plurality of serrating tools are positioned for cutting... | 01/24/1984 |
| 4363190 | Pivoted sash window sash guide and balance lock structure Sash guide and balance lock structure in pivoted window structure, which window structure includes an elongated hollow jamb member having a slot in one side thereof and an adjacent pivoted window sash, which sash guide and balance lock structure comprises... | 12/14/1982 |
| 4362011 | False-twisting equipment False-twisting equipment including a first heater disposed on one side of an operation space, a second heater disposed on the other side of an operation space and a balloon control device and a false-twisting spindle disposed in the upper portion of the o... | 12/07/1982 |
| 4360204 | Golf ball storage and feeder device The golf ball teeing device comprises a base upon which is mounted a golf ball storage and feeding structure. This structure includes a vertical helical ramp for receiving golf balls which roll theredown in single file. A pivotable feeder arm structure is... | 11/23/1982 |
| 4357940 | Tissue pneumatic separator structure Structure for and a method of separating tissue pneumatically comprising a source of gas under pressure, a regulator for regulating the pressure of the gas, and flow controls for directing the pressure controlled gas to a disposable gas directing stem and... | 11/09/1982 |
| 4355770 | Cop supplying apparatus for automatic winding machine Improvements in a cop supplying apparatus comprising a cop supplying truck which runs along individual winding units of an automatic winding machine and feeds cops into magazines of the winding units without stopping. The cop supplying truck is provided w... | 10/26/1982 |
| 4353022 | Torque reversing motor control structure and method A torque reversing motor control structure and method for a reversible split phase or capacitive start motor including a centrifugally operated start switch and a transformer controlled motor contactor wherein the primary circuit of the transformer is com... | 10/05/1982 |
| 4352617 | Bucket stacking and conveying apparatus An apparatus for stacking buckets in order which are carried by a conveyor and an apparatus for conveying the stacked buckets in section. The apparatus comprises stanchions disposed vertically on both the side portions of a conveyor, a supporting member c... | 10/05/1982 |
| 4352319 | Positive control for hydrostatic motors, especially radial piston motors The invention relates to a positive control especially radial piston motors for hydrostatic motors. Such control, while permitting a large range of rotational speed, is capable of avoiding disturbances in the oil flow occurring during coverage of the edge... | 10/05/1982 |
| 4352971 | Self-equalizing welding structure Self-equalizing welding structure and method. The structure comprises piston and cylinder structure held in a fixed support, including cylinder ends movable into and out of the opposite ends thereof, a welding electrode attached to one rod cylinder end on... | 10/05/1982 |
| 4347635 | Stretcher and litter combination A stretcher and litter combination, including a buoyant raft-like structure adapted for use as a rescue or recovery litter, and a buoyant stretcher. The litter has pontoons on either side of an elongated body section. The stretcher is in the form of an el... | 09/07/1982 |
| 4347990 | Method and apparatus for stopping packages in automatic winder In an automatic winder wherein a winding package rotates while having surface contact with a transverse drum which is positively rotated, a method and apparatus for stopping the package concurrently with stopping of the drum. The method includes a braking... | 09/07/1982 |
| 4346551 | Method and apparatus for twisting and winding yarns on packages A method and apparatus for obtaining packages for dying by twisting and winding processed yarns by a double twister. Between a double twisting spindle and a take-up roller disposed above, there are arranged a winding angle-adjusting device, a feed roller ... | 08/31/1982 |
| 4344217 | Automatic stapling and cutting machine A machine is provided for cutting to length and joining two lengths of strand material at their ends to produce a band. A method of producing a band from two lengths of strand material is also provided.... | 08/17/1982 |
| 4344415 | Solar collector A collector for use in an improved phase change refrigerant charged solar system, comprising an enclosure having a top, bottom, two sides, a heat absorbing back, and a front which is transparent to the sun's rays, a transfer conduit extending into the col... | 08/17/1982 |
| 4344726 | Cargo handling apparatus Cargo loading and unloading systems, particularly for military aircraft such as helicopters, including right and lefthand restraint rail assemblies having longitudinally spaced lock mechanisms which are adapted to provide lateral and forward and aft restr... | 08/17/1982 |
| 4342524 | Material fastening structure and method A compression member positioned against a member to which other material is to have an opening therethrough and fastening means extending through the openings in the compression member into engagement with a surface of the member to which other material i... | 08/03/1982 |
| 4339933 | Racking device for flat knitting machine A racking device for an automatic flat knitting machine in which a data of the knit structure and other data are stored in memory members in respect to each course and the knitting operation is carried out based on outputs of said stored data. The racking... | 07/20/1982 |
| 4340262 | Spindle bearing and lubrication system A spindle bearing and lubrication system having bearings supporting a shaft for rotation within a housing to which the outer bearing rings are keyed. End retainers and a spacer locate the bearings axially, and, with the bearings, define annular lubricant ... | 07/20/1982 |
| 4339090 | Cop supplying method for automatic winding machine A cop supplying truck which runs along the individual winding units of an automatic winding machine is provided. The cop supplying truck travels while storing the cops accomodated in an individual cylindrical cop container and feeds the cops into a magazi... | 07/13/1982 |
| 4338834 | Wrench A wrench comprising a gripping member, a handle having a complementary gripping portion at one end thereof, structure for adjusting the gripping member with respect to the gripping portion axially of the handle without rotating the handle relative to the ... | 07/13/1982 |
| 4332368 | Valve Fast-acting valve structure for rapidly evacuating a container of fire retardant material or the like comprising a pilot valve including an annular radially movable, self-centering valve seat, means for actuating the pilot valve either automatically or ma... | 06/01/1982 |
| 4331412 | Retractable pallet securing device A retractable center guide and vertical and lateral load restraint for a cargo carrying aircraft. The devices are mounted along the center line of the aircraft and in erect position include laterally extending arms adapted to overlie the edges of load car... | 05/25/1982 |
| 4331313 | 6-Way split bench seat adjuster A 6-way seat adjuster for motor vehicles in which a three armature motor is mounted on a slidable seat frame and has connections to front and rear lift devices on the frame and a horizontal adjuster. The motor is mounted on a transmission housing in which... | 05/25/1982 |
| 4329866 | Beam transfer mechanism A beam-type transfer mechanism for moving workpieces step by step along a row of stations through the dies of a press to progressively form a blank into a finished part. A pair of laterally spaced beams extend parallel to the row of stations, having oppos... | 05/18/1982 |
| 4330031 | Ceramic tube recuperator A ceramic tube recuperator for recovering energy from hot flue gases, in which a multiplicity of heat exchange elements connected to a cold air inlet manifold and a hot air outlet chamber extend upwardly into a flow passage for hot flue gases. Each heat e... | 05/18/1982 |
| 4330584 | Automotive liner panel A contoured self-supporting automotive liner panel, such as a headliner, which comprises an outer substrate layer of expanded plastics material which is relatively rigid and has a substantial resistance to bending, an intermediate layer of relatively soft... | 05/18/1982 |
| 4328723 | Adjustable tool compensating arm An elongated relatively rigid yet resilient tool compensating bar formed from rectangular bar stock with strategically placed slots to form three basic body members, namely a stationary body member, a lower body member, and an upper body member. The stati... | 05/11/1982 |
| 4328409 | Continuous, automatic mesh welding structure and method Structure for and the method of supporting an initial plurality of longitudinally extending large diameter reinforcing rods in transversely aligned spaced apart relation, separately feeding individual, transversely extending reinforcing rods onto the long... | 05/04/1982 |
| 4326638 | Combination base cup and bottle A bottle formed of a flexible plastics material such as biaxially oriented polyethylene terephthalate having a convex, generally rounded bottom incapable of supporting the bottle in a stable, upright position, and a flexible snap-on supporting cup applied... | 04/27/1982 |
| 4326690 | Seat adjusting mechanism An adjustable automotive vehicle seat has independent front and rear edge adjusting and supporting means to provide for vertical adjustment of the seat between raised and lowered positions, and for tilt adjustment of the seat between an untilted position ... | 04/27/1982 |
| 4325985 | Thread lock The method of making self-activating thread lock structures which comprises depositing a fluid material including an uncured fluid resin in the thread grooves of a threaded member; immediately thereafter, while the material is still in fluid condition, ap... | 04/20/1982 |
| 4324100 | Hydraulically controlled mirror A remote control actuating mechanism for adjusting the angular position of an outside vehicle rearview mirror. The mechanism comprises a master control device and a slave device, each having a piston reciprocable within a cylinder. Closed hydraulic circui... | 04/13/1982 |
| 4324051 | Process and apparatus for recovering heat from finely to coarsely divided material having high temperature A process and an apparatus for recovering heat from a finely to coarsely divided hot material, such as carbide crushed on solidification, which contains particles and lumps of varying sizes. The hot material is separated by a classifier into a portion of ... | 04/13/1982 |
| 4323992 | Depth sounder repeater structure and method A depth sounder repeater providing a remote display of the depth of a body of water digitally or by meter movement, a depth alarm, a lost echo signal, and a meter scale expansion for shallow depth display in conjunction with a ship's sonar, display of "al... | 04/06/1982 |
| 4321885 | Ring patch for nuts Apparatus for the quantity production of friction nuts prepared for subsequent fusion of thermoplastic resin particles deposited in thread grooves therein, in which the nuts are supported with their axes vertical, a fluid slurry of the particles in a liqu... | 03/30/1982 |
| 4319720 | Yarn knotting operation control apparatus in automatic winder A yarn knotting operation control apparatus for an automatic winder including a plurality of winding units and a yarn knotting device comprises one air conduit for supplying suction air stream used for performing the yarn knotting operation, a blower conn... | 03/16/1982 |
| 4318194 | Water closet diverter valve A water closet flushing system of a type employing a float-controlled valve through which water is supplied to refill the tank after the water in the tank has been dumped into the bowl to flush the bowl. A diverter valve is interposed in the line leading ... | 03/09/1982 |
| 4314870 | Method of mounting electronic components In a method of mounting an electronic component wherein the electronic component is temporarily mounted on a printed circuit board before the component is securely mounted on the base plate by soldering, the improvement comprises steps of delivering adhes... | 02/09/1982 |
| 4312793 | Electrical joint compound The present invention relates to an electrical joint compound for use in tubular compression connectors generally of aluminum or copper, and is particularly useful for joining large, stranded or solid, underground, electrical power cable and terminations ... | 01/26/1982 |