...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 |
| 6602054 | Fluid motor apparatus for amplifying thrust An array of axially spaced rotating airfoils having funnel strips on the blades to increase the lift to drag ratio and generate thrust are rotatably driven by small motors with rotating airfoils, also having funnel strips to enhance thrust. The small moto... | 08/05/2003 |
| 6577631 | Communication switching module for the transmission and control of audio, video, and computer data over a single network fabric A communications switching module (CSM) serving as common switching equipment for work stations in a star-topology Ethernet local area network. Both voice and data are incorporated in master Ethernet packets which are transmitted at a constant rate. The C... | 06/10/2003 |
| 6574242 | Method for the transmission and control of audio, video, and computer data over a single network fabric A local area network of devices connected to a Communication Switching Module (CSM) carry both delay-sensitive information and non-delay sensitive user data in master Ethernet packets transmitted over the LAN at a constant rate. Signaling and control info... | 06/03/2003 |
| 6570890 | Method for the transmission and control of audio, video, and computer data over a single network fabric using ethernet packets Delay-sensitive information (e.g., voice, video) and non-delay-sensitive user data are combined and transmitted over a single UTP cable forming part of a star-connected Ethernet local area network. Master Ethernet packets of fixed length are formatted wit... | 05/27/2003 |
| 6568667 | Quick setup apparatus for bar clamp operated with one hand A bar clamp of the type operated with one hand to advance a movable jaw toward a fixed jaw to clamp workpieces and having a holding brake with release mechanism is modified according to the invention to provide a quick set up apparatus. The modified bar c... | 05/27/2003 |
| 6554760 | Pre-loaded needle assembly For implanting a therapeutic element, this needle assembly includes a cannula having a sharpened distal end, a line of elements in the cannula extending rearward from the distal end. A yieldable positioner including an absorbable plug positions the elemen... | 04/29/2003 |
| 6539011 | Method for initializing and allocating bandwidth in a permanent virtual connection for the transmission and control of audio, video, and computer data over a single network fabric A permanent virtual connection (PVC) is automatically set up over an Ethernet local area network (LAN) link between a work station device having a digital telephone and a Communications Switching Module (CSM) when the device is first connected to the LAN.... | 03/25/2003 |
| 6526438 | Method for distributing information to subscribers over a network Information items from publishers are furnished to authorized subscribers by processing and storing the information in a central database and logging in each information item. Entitlement tables also are kept which indicate which subscribers are entitled ... | 02/25/2003 |
| 6519886 | System and method for mounting front loaded photographs System and method for mounting front-loaded photographs, which are held in place in a recess with a smooth curvilinear sidewall by a flexible plastic retaining ring, which is precisely formed to frictionally engage the smooth sidewall. A variety of recess... | 02/18/2003 |
| 6484650 | Automated security chambers for queues A security system having a series of adjacent bullet-proof transparent chambers for successive passage of persons in a queue. A door interlock system controls passage of individuals along with intermittent movement of a conveyor for inspecting hand-carrie... | 11/26/2002 |
| 6474599 | Aircraft security system An aircraft security system comprises a transparent bullet-proof security chamber interposed between the pilot area and the passenger area, and providing the only means of passage to the pilot area. The security chamber has a cockpit door to the cockpit a... | 11/05/2002 |
| 6467815 | Fitting for installation of a nipple from the exterior of a duct and method of installation A special fitting for installing a flanged nipple from the exterior of a duct. The threaded nipple has a handling stem formed integrally therewith, which is used to hold the nipple and flange inside the duct while a flexible cup seal washer is deformed an... | 10/22/2002 |
| 6457671 | Funneled rotary foil A funnel strip is added to a rotary airfoil, which utilizes the Bernoulli principle to increase the velocity of air over the suction side of the rotating airfoil to increase the lift. The device is applicable to thrust-producing devices, such as propeller... | 10/01/2002 |
| 6446385 | Greenhouse system with co-generation power supply, heating and exhaust gas fertilization A greenhouse is combined with a gas turbine generator set, wherein power, heat and fertilization products are all supplied to the greenhouse by the gas turbine and its exhaust gas in a balanced system for year-round continuous plant production. The system... | 09/10/2002 |
| 6430861 | Electronically controlled firearm A firearm using a laser in place of a firing pin mechanism. Special cartridges have a lasing chip, which lases to ignite the propellant when a beam from the laser impinges on the lasing chip through a port in the breechblock. An electronic control system ... | 08/13/2002 |
| 6352187 | Golf bag for carrying clubs during play A light weight golf bag with waist straps and an angle adjustment cord which is carried on the waist at an angle behind the players' back, so as not to impede the players' stroke. The bag is not intended to be removed between shots.... | 03/05/2002 |
| 6306356 | Separation and recovery of metal values from natural bitumen ash High yields of vanadium containing virtually no nickel or magnesium are obtained from natural bitumen ash consisting of up to 5% carbon, more than 95% of water-soluble compounds of vanadium, nickel and magnesium by mixing the ash with water to produce a 2... | 10/23/2001 |
| 6297657 | Temperature compensated vertical pin probing device An improved vertical pin probing device is constructed using Invar, which substantially matches the coefficient of thermal expansion of the silicon wafer being probed. Spaced dies with Invar foils supporting the probe pins are coated with wear-resistant d... | 10/02/2001 |
| 6295751 | Flare attachment for a firearm with a removable barrel An attachment for a firearm with a removable barrel screws onto the firearm in place of the barrel and enables firing a flare. The attachment includes a firing pin housing with a sliding firing pin extension, and a flare cartridge barrel, which may be tem... | 10/02/2001 |
| 6255602 | Multiple layer electrical interface A universal design of a multiple layer printed circuit board incorporates a series of routing vias interconnecting the various layers. The routing vias are connected to conductive traces in the internal trace layers by internal junctions. The internal jun... | 07/03/2001 |
| 6245070 | Forceps tissue removal device A tissue removal device is used with a standard Kleppinger bipolar forceps. A cleaning element held on a tube fitting over the Kleppinger forceps tubes, is used to remove coagulated tissue from between the forceps blades and clean the blades. A motion res... | 06/12/2001 |
| 6231453 | Golf swing indicator Improved push button release for a centrifugal golf swing indicator which releases the indicator weight when the push button is depressed, and resets the golf swing indicator for the next use when the release button is released. Further improvements inclu... | 05/15/2001 |
| 6220071 | Method and apparatus for controlling strip edge relief in a cluster rolling mill Strip edge relief is adjusted in a twenty-high cluster rolling mill by a set of double-tapered intermediate rolls in contact with the work roll. Rolling forces bend the work roll ends toward the tapered sections of the intermediate rolls to provide strip ... | 04/24/2001 |
| 6218930 | Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network Apparatus for remotely powering access equipment over a 10/100 switched Ethernet network comprises an Ethernet switch card with a phantom power supply for remote access equipment and added circuitry for automatic detection of remote equipment being connec... | 04/17/2001 |
| 6215789 | Local area network for the transmission and control of audio, video, and computer data An Ethernet Local Area Network uses a star topology connecting user stations to a Communications Switching Module (CSM) with 10Base-T or 100 Base-TX UTP cable. Each user station typically has a digital telephone and a data communication device, such as a ... | 04/10/2001 |
| 6205704 | Method and apparatus for enhancing plant growth in greenhouses utilizing landfill gas An environmentally controlled greenhouse is located near a landfill site and uses the landfill gas to both heat the greenhouse and furnish a clean carbon dioxide enriched product gas to enhance plant growth. The clean CO2 system product gas is ... | 03/27/2001 |
| 6208740 | Stereophonic magnetic induction sound system A stereophonic magnetic induction sound system is disclosed which has an audio source, two ear pieces, each having an inductive pick-up coil, and a magnetic induction transmitter connected to the audio source and capable of transmitting different signals ... | 03/27/2001 |
| 6182377 | Dive boot A dive boot for wearing with swim fins and having a felt sole to prevent slipping on underwater objects when entering the water without the fin.... | 02/06/2001 |
| 6170792 | Customizable, transportable, modular presentation system The present invention is directed to a presentation easel which serves as a foundation for a robust, modular, presentation system. In addition, the presentation easel is highly customizable to a wide variety of customer needs and desires. In an exemplary ... | 01/09/2001 |
| 6160412 | Impedance-matched interconnection device for connecting a vertical-pin integrated circuit probing device to integrated circuit test equipment An interconnection device used with test probe equipment for connecting a vertical-pin integrated circuit probing device to external test equipment. The interconnection device comprises a probe card with a pattern of contacts, a mounting plate adjustably ... | 12/12/2000 |
| 6124723 | Probe holder for low voltage, low current measurements in a water probe station A probe holder for a wafer probe station is comprised of a pair of over-and-under rigid extensions, one of which receives the probe shank and the other of which is connected to the probe to make a Kelvin connection. The two coaxial extensions are supporte... | 09/26/2000 |
| 6095374 | Closure for supporting a container of viscous liquid An improved supporting closure for a container adapted to hold a viscous liquid and having an externally threaded neck comprising a pivotably connected dispensing cap and a container support. The dispensing cap has an internally threaded, dual diameter, s... | 08/01/2000 |
| 6080110 | Heartbeat monitor for wearing during exercise A heartbeat monitor for wearing during exercise and receiving audio heartbeat information includes a pulse rate detector having an infrared source and an infrared sensor on a flexible cup-shaped ear piece which fits into the ear canal.... | 06/27/2000 |
| 6070434 | Ornamental neckpiece An ornamental neckpiece for a shirt with a buttoned collar, which is intended to be worn when the collar is unbuttoned, comprising an ornamental chain or cord having an attachment on one end suitable for attachment to the shirt collar button and an attach... | 06/06/2000 |
| 6031383 | Probe station for low current, low voltage parametric measurements using multiple probes A probe station has probe manipulators with probe supports disposed around a cover assembly with an inspection opening. Each probe support has a vertical tube extending through an opening in the cover assembly and a horizontal adjustable member extending ... | 02/29/2000 |
| 6025548 | Collapsible stringed instrument A collapsible acoustic guitar has a body divided into upper and lower halves, a detachable neck and a detachable string assembly consisting of headstock with tuning pegs, strings and an anchor member. In the preferred version, the upper body half nests in... | 02/15/2000 |
| 5959461 | Probe station adapter for backside emission inspection An adapter for holding a silicon wafer in an inverted position of a probe station to allow backside emission testing is described. The wafer is positioned in a carrier having an opening therethrough for backside emission testing while the wafer is energiz... | 09/28/1999 |
| 5947317 | Opener for beverage containers A lift-up tab opener for a beverage can is improved by providing an actuator with a finger loop and pressure tab to push open a closure tab as in the prior art. The actuator is modified to elevate the pressure tab with a bend forming a fulcrum, so that th... | 09/07/1999 |
| 5901744 | Water supply system for a water source with limited flow capability An auxiliary system for insuring adequate water supply during peak periods from a well with a low recovery rate. A gravity storage tank is replenished at a rate equal to or slightly lower than the recovery rate of the well. A float-controlled air shutoff ... | 05/11/1999 |
| 5890259 | Tool manipulator A multipurpose tool holder with a frame and pivoting ring fitting over the arm has a first handle to grasp when only the forearm is inserted and a second handle to grasp when the full arm is inserted, the pivoting ring allowing bending of the elbow. A tub... | 04/06/1999 |