...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 |
| 6167926 | Self-aligning delimbing apparatus An improved self-aligning tree delimbing apparatus for use in conjunction with a knuckle boom loader having an inner frame member pivotally mounted and concentrically received within an outer frame member, which is rigidly attached to a base member. Pivot... | 01/02/2001 |
| 6138739 | Portal covering An improved roll-up closure utilizing a flexible cover selected from a material suitable to effect the type of closure sought. The cover is at least as wide as the portal to be covered and is typically longer than the portal. Each lateral margin of the co... | 10/31/2000 |
| 6105721 | Accessory for use with an ATV The present invention relates to an accessory for an ATV (all terrain vehicle) mounted on top of an ATV to allow the use of a stationary ATV as a hunting stand. The accessory is comprised primarily of square metallic tubular members that surround a hunter... | 08/22/2000 |
| 6082694 | Golf umbrella mounting clamp A mounting apparatus that can be universally adapted to golf umbrellas or which can be used with a specialized umbrella. Further, the invention is compact and thus lightweight so as not to detract from nor significantly effect the standard usage of the go... | 07/04/2000 |
| 5960847 | Sealable curtain An improved roll-up closure utilizing a flexible cover or curtain selected from a material suitable to effect the type of closure sought. The cover is at least as wide as the portal to be covered and is typically longer than the portal. Each lateral margi... | 10/05/1999 |
| 5948333 | Method for creating imitation marble facade for objects The present invention generally relates to imitation marble objects. More particularly, the present invention relates to a method for producing imitation marble fixtures such as tubs, walls, vanities, etc. A method for producing imitation marble fixtures,... | 09/07/1999 |
| 5947988 | Surgical apparatus for tissue removal A surgical instrument including an elongated member connected to both suction for removing excised tissues and fluids and to a source of pressurized fluid. The member has an inner and outer wall with a hollow lumen extending the length of the member which... | 09/07/1999 |
| 5946846 | Spring loaded fishing apparatus A spring loaded fishing apparatus formed from an elongated resilient wire. The wire is sharpened at both ends and formed into a W-shaped member having a center portion forming an eyelet for attaching a fishing line. The W-shaped member is inserted into a ... | 09/07/1999 |
| 5914403 | Quinolinic acid derivatives Coupled to the N-methyl-D-aspartate (NMDA) receptor complex is a strychnine-insensitive binding site for glycine. Pharmacological antagonism of glycine at this site may produce anticonvulsant activity. Twelve 4-urea-5,7-dichlorokynurenic acid derivatives ... | 06/22/1999 |
| 5897457 | Athletic performance monitoring system An athletic performance evaluation device utilizes ultrasonic sensing circuitry or infrared sensing circuitry, a vibration sensitive switch, and an audio input to signal a microprocessor to start a timing function that calculates therefrom an objective ev... | 04/27/1999 |
| 5888218 | Implant micro seal An osteo-integrated implant utilizes a metal seal formed on the outer diameter of the implant components spaced axially from the annular seat or junction of the components. The sealing surface of one component is machined on the internal diameter of a cou... | 03/30/1999 |
| 5885031 | Mine roof bolt anchor An anchor for a mine roof bolt incorporates a single large rib at the top of a segmented shell. This single large rib is forced into the wall of the bore hole by the downward movement of an associated threaded camming nut during the first few revolutions ... | 03/23/1999 |
| 5878742 | Airvisor delivery system An air delivery system including a means for defining a plenum near the forehead of a wearer, a baffle for distributing the air from the plenum downward over the wearer's mouth, nose, and face, and a means for securing the plenum to the forehead of the we... | 03/09/1999 |
| 5875584 | Fish hook An improved quad fish hook having alternating planar bights and offset bights forming upturned hooks. The fish hook has an enlarged shank for greater hooking and holding strength, and an eyelet offset from the plane of each hook to equalize pressure on an... | 03/02/1999 |
| 5837303 | Method for killing microorganisms in liquids An improved method for treating liquid foodstuffs to prolong their shelf life wherein the liquid is exposed to intense agitation, preferably through sonication, to disrupt cell walls and membranes of any microorganisms present in the liquid. The liquid is... | 11/17/1998 |
| 5830046 | Belt shifting idler pulley for reciprocating an abrasive belt An apparatus for continually shifting an endless abrasive belt trained between a drive pulley and an idler wheel. The belt is trained around an idler wheel which is supported by an arm above a continually pivoting platform transverse to the travel directi... | 11/03/1998 |
| 5829942 | Apparatus for loading and unloading circuit boards along a conveyor system A dedicated elevator having a "smart" handler mounted thereon to move circuit boards and the like from an assembly line to a storage magazine and back, providing a greatly reduced footprint over apparatus which must move and elevate entire magazines and w... | 11/03/1998 |
| 5806685 | Confinement house cleaner An apparatus for use in cleaning confinement houses, to be pulled within the confinement house by a small tractor, providing motive force to the apparatus and to its components, is constructed on a wheeled frame, the front of which is connected to the tra... | 09/15/1998 |
| 5785105 | Sealable curtain An improved roll-up closure utilizing a flexible cover or curtain selected from a material suitable to effect the type of closure sought. The cover is at least as wide as the portal to be covered and is typically longer than the portal. Each lateral margi... | 07/28/1998 |
| 5784829 | Fishing bobber An improved fishing bobber having a light weight quill portion with a stop at a lower end thereof and a denser portion which fits over the quill and abuts the stop. The denser portion has sufficient weight to facilitate casting the line but has enough buo... | 07/28/1998 |
| 5782918 | Implant abutment system An implant abutment system uses a combination of an implant anchor, an abutment having a plurality of connection features for connecting to the implant, and a locking pin for locking the abutment into the implant. The implant anchor includes an axial bore... | 07/21/1998 |
| 5766194 | Surgical apparatus for tissue removal A surgical instrument includes an elongated member connected to both a suction device for removing excised tissues and fluids and to a source of pressurized fluid. The member has an inner and outer wall with a hollow lumen extending the length of the memb... | 06/16/1998 |
| 5759568 | Method for producing animal foodstuff from waste An improved method for recovering and processing waste water solids into animal foodstuff wherein bentonite is added to waste water comprising oils, fatty acids, grease, or the like. The pH of the waste water is regulated, bentonite and a polymer are adde... | 06/02/1998 |
| 5755807 | Implant module unit and rotating seal for prosthetic joint An implantable module for use with a prosthetic joint that utilizes a bellows and a rotating seal for encapsulating the articulating members of the implant. This invention is comprised of flexible metallic bellows which serve the same function as the pres... | 05/26/1998 |
| 5752557 | Sealable curtain An improved roll-up closure utilizing a flexible cover or curtain selected from a material suitable to effect the type of closure sought. The cover is at least as wide as the portal to be covered and is typically longer than the portal. Each lateral margi... | 05/19/1998 |
| 5746340 | Vented lid for electric enclosures An electrical enclosure lid composed of several elongated members nested in such a way that a tortuous air channel is created between each member. The air channel allows heat generated by internal electrical components, such as large power transformers, t... | 05/05/1998 |
| 5746396 | Deicer A mobile deicer is mounted on hydrostatically driven wheels mounted directly to the longitudinal frame without springs, thereby increasing the stability of the apparatus. Supported on the frame is the unique body which allows stand up access to the engine... | 05/05/1998 |
| 5746664 | Golf putter A golf club, such as a putter, utilizes removable shafts, removable weights in the shaft grip end, a variable length adapter to connect the shaft to the putter head and vary the shaft end weight, and removable weights in the putter head to vary the pressu... | 05/05/1998 |
| 5733591 | Method for automatically sweetening tea A control circuit and method for brewing and storing sweetened tea in large volume using an automatic tea brewing apparatus utilizes a separate timer to control the introduction of a liquid flavoring agent into the canister. The timer is initiated at the ... | 03/31/1998 |
| 5725723 | Apparatus for making pipe insulation In an apparatus for forming pipe insulation discrete panels of generally rigid planar board insulation are fed through a sizing apparatus to control thickness, then fed into a vertically oriented conveyor where adjacent ends of the panels are adhered to o... | 03/10/1998 |
| 5713534 | Continuous web winding apparatus A web winding and severing apparatus using a linear carriage arrangement wherein the cores are positioned relative to feed to a winding drum in a bilateral manner such that a core is always adjacent to the drum ready to receive the leading edge of the web... | 02/03/1998 |
| 5707212 | Apparatus for precisely controlling the feeding of viscous and non-viscous liquid products into a packaging machine Precise control of the vertical motion of a piston or series of pistons within a cylindrical housing of a positive displacement pumping device to precisely set the discharge volume of viscous and non-viscous liquid products from the pistons. Uses a linear... | 01/13/1998 |
| 5705250 | Resilient shock resistant ceramic panel A wear and shock resistant ceramic-cored composite panel (11) for use in equipment exposed to heavy abrasive materials comprising a plurality of commensurately shaped generally planar layers. The layers are comprised of and sequentially arranged in the fo... | 01/06/1998 |
| 5699712 | Rotatable side saw for tree processing apparatus A side saw assembly for a tree processing apparatus. The side saw assembly is rotatably and pivotally attached to a mounting platform on a trailer such that the side saw assembly is selectively movable between a transport position, resting on top of the t... | 12/23/1997 |
| 5692284 | Freeze plug installation tool A tool for installation of freeze plugs in automotive internal combustion engines comprising an elongated hollow member having a wedge in cooperative relationship with a hammer which is slidably mounted in an end of the elongated member to move in a direc... | 12/02/1997 |
| 5692386 | Cooling apparatus for an animal confinement house A water cooling apparatus utilizes a conventional ice maker to produce ice which is deposited into a large insulated storage tank. The insulated storage tank includes a suspended grate to hold the deposited ice and spray nozzles positioned above the grate... | 12/02/1997 |
| 5686154 | Three-dimensional topographical model An improved three-dimensional topographical model comprised of a plurality of layers having curvilinear apertures therethrough. The layers are stacked upon each other to form a three-dimensional hollow structure. The individual layers are cut from at leas... | 11/11/1997 |
| 5685134 | Simultaneous litter removal and grass cutting apparatus An apparatus towed behind a conventional farm tractor has a vacuum section ahead of a conventional mowing section so that litter and other debris are vacuumed into a rear hopper before entering into the mowing section. A conventional power take-off unit o... | 11/11/1997 |
| 5680936 | Printed circuit board sorting device The present invention contemplates the use of a conveyor transporting circuit boards through a production line. At a point or stage in the production line where testing is to occur, the invention is employed to remove circuit boards from an input conveyor... | 10/28/1997 |
| 5678465 | Tissue slice thickness measuring apparatus and method A measuring apparatus for measuring the thickness of slices taken from biological tissue samples by a microtome. The apparatus integrates a digital micrometer, a drive motor, sensing and control circuitry, and a mounting plate, and is designed to be attac... | 10/21/1997 |