...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 |
| 5462004 | Emergency warning flag systems An emergency warning flag system adapted to mark areas for use solely by emergency vehicles including a vertically extending, elongated flag pole having an upper end and a lower end; a flexible flag secured with respect to the upper end of the flag pole; ... | 10/31/1995 |
| 5462005 | Method and apparatus for reserving seats at entertainment event Apparatus for reserving a seat in an entertainment theater includes a casing and a tape which is extendable from and retractable into the casing. The casing and tape are looped over the armrests of seats to reserve the seats. Indicia on the tape denote th... | 10/31/1995 |
| 5462006 | Bookmark A bookmark has a rear plate and a front plate secured by an adhesive in juxtaposition to the rear plate. Either one or both of the plates is formed with an opening for receiving either a photograph or a supply of potpourri. The front plate has a planar su... | 10/31/1995 |
| 5462007 | Bookmark A bookmark for recording a reader's position within a book. The inventive device includes a mounting band securable about the cover of the book, with a positioning band coupled to the mounting band. A marker member is coupled to the positioning band and c... | 10/31/1995 |
| 5462008 | Semiconductor films Semiconductor films of the formula (InP)1-x (TlP3)x on InP substrates which cover the bandgap of 2-12 μm for use with long wavelength infrared detector and laser applications are disclosed.... | 10/31/1995 |
| 5462009 | Method and apparatus for producing perovskite compositions A method for producing a perovskite composition from a precursor composition wherein the precursor composition is irradiated with microwaves to heat the precursor composition and convert the precursor composition to perovskite. A susceptor crucible for us... | 10/31/1995 |
| 5462010 | Apparatus for supplying granular raw material for a semiconductor single crystal pulling apparatus An apparatus for continuously supplying granular polycrystal silicon to a crucible of a semiconductor single crystal pulling apparatus, comprising a funnel-shaped tank having a relatively large capacity, a main hopper having a relatively small capacity an... | 10/31/1995 |
| 5462011 | Method for pulling single crystals A method and apparatus for pulling single crystals from a melt of semicontor material, in which a monocrystalline seed crystal grows to form a single crystal, the seed crystal being dipped into the melt and raised in a controlled manner in the vertical d... | 10/31/1995 |
| 5462012 | Substrates and methods for gas phase deposition of semiconductors and other materials A novel substrate for growth of material by chemical phase deposition includes a temperature monitoring zone formed by applying a coating of growth preventing material (e.g., SiOx or SiNx) to a portion of the substrate. The temperatu... | 10/31/1995 |
| 5462013 | CVD apparatus and method for forming uniform coatings A chemical vapor deposition (CVD) apparatus comprises a reactor having a coating chamber at elevated temperature, means for supporting substrates to be coated at different zones in the coating chamber, and means for supplying a gaseous reactant stream to ... | 10/31/1995 |
| 5462014 | Apparatus for growing a thin metallic film Gold or copper is grown on a substrate by a chemical vapor deposition method using a ଲ-ketonato type metal complex of gold or copper as a starting material and introducing the starting material to the substrate using as a carrier gas a mixed gas com... | 10/31/1995 |
| 5462015 | Kennel hull latch An improved latch for securing together two portions of enclosure in which a rotary latch member is secured for rotation to an upstanding wall of one of the portions of the enclosure. The latch member includes a generally circular disk having an annular w... | 10/31/1995 |
| 5462017 | Poultry feeder A poultry feeder (10) comprising a generally vertically disposed feed tube (18) adapted to be installed on a generally horizontal feed conveyor tube (14) for receiving feed from the feed conveyor tube. The feed tube has an upper portion (26) fixed with re... | 10/31/1995 |
| 5462018 | Brushing device for grooming animals A manually operable grooming device for animal coats, the device including: a main body; a scratching unit carried by the main body and including a support member and a plurality of scratching teeth carried by, and extending from, the support member, the ... | 10/31/1995 |
| 5462019 | Animal leash An animal leash includes a length of aircraft cable and a clamp that can be adjusted along the cable. The clamp has an eye for receiving a snap connector on the end of the cable so that the leash can be formed with a loop with a fixed diameter. The leash ... | 10/31/1995 |
| 5462020 | Animal tail cover A removable cover for the tail of an animal has a fabric enclosure that is fastened to the tail by a fastener that grips the tail below the dock of the tail. In an alternative embodiment, a tail cover is disclosed that grips the base of the tail by encomp... | 10/31/1995 |
| 5462021 | Hydrogen gas supply systems for hydrogen engine and method of supplying hydrogen gas to the hydrogen gas supply system A hydrogen gas supply system for a hydrogen engine has a hydrogen gas cartridge which is detachably attached to the engine. The cartridge has a casing in which hydrogen gas storage alloy and a heating medium passage for heating the hydrogen gas storage al... | 10/31/1995 |
| 5462022 | Valve timing control apparatus having cylinder discriminating function A transmitting device is operative for transmitting a rotational force from a crankshaft to a camshaft. A rotational phase adjusting device is operative for adjusting a relative rotational phase between the crankshaft and the camshaft. A crank angle senso... | 10/31/1995 |
| 5462023 | Rain cover of an ignition plug attaching hole The present invention prevents drops of water from entering an ignition plug attaching hole through a vent hole formed for communicating an inner space of the ignition plug attaching hole with the atmosphere. A rain cover of an ignition plug attaching hol... | 10/31/1995 |
| 5462024 | Auxiliary carburetion device in direct fuel injection engines An auxiliary carburetion device in direct fuel injection engines, to be positioned in correspondence with a main duct (12) feeding air to the engine crankcase (10), a throttling member (38) being located in the main duct (12). The device includes a block ... | 10/31/1995 |
| 5462025 | Hydraulic circuits for compression release engine brakes The relatively complex and expensive "control valves", which are conventionally used in certain compression release engine brakes for such purposes as filling, isolating, and venting the high pressure portions of the hydraulic circuits in the engine brake... | 10/31/1995 |
| 5462026 | Throttle valve assembly with traction control device A throttle valve assembly comprises a body defining an air intake passage therein; a valve proper pivotally installed in the air intake passage to control the amount of air flowing therethrough; a first valve actuator for pivoting the valve proper in acco... | 10/31/1995 |
| 5462027 | Induction system for engine A number of embodiments of cylinder head and intake port arrangements for multiple valve, internal combustion engines particularly those having three or more intake valves. The configuration promotes turbulence in the combustion chamber by inducing a tumb... | 10/31/1995 |
| 5462028 | Fuel pumping apparatus A fuel pumping apparatus for supplying fuel to an engine includes a pumping plunger housed in a bore one end of which connects with an outlet and also by way of a valve with a source of fuel under pressure. Also provided is a further plunger housed in a f... | 10/31/1995 |
| 5462029 | Fuel pumping apparatus A fuel pumping apparatus for supplying fuel to an internal combustion engine has a plurality of pumping plungers (19) which are housed in respective bores (17). The plungers are movable inwardly in the bores but during such movement one of the plungers mo... | 10/31/1995 |
| 5462030 | Encapsulated adjustable rate shaping device for a fuel injection system A fuel injection control mechanism for use in a fuel system is adapted to be connected between a fuel injection pump and a fuel injector. The mechanism includes a main passage, a chamber, a primary valve connecting the main passage to the chamber, a pisto... | 10/31/1995 |
| 5462031 | Air-to-fuel ratio control unit for internal combustion engine An air/fuel ratio control for an internal combustion engine which adjusts the fuel supply amount in response to correction factors dependent upon altitude and engine speed and altitude and engine load. In this way, it is not necessary to provide over-enri... | 10/31/1995 |
| 5462032 | Fuel injection timing control device and method for internal combustion engine A fuel injection timing control device includes a lift sensor for detecting a lift amount of a needle valve of a fuel injection nozzle, rectangular wave conversion means for converting an output signal of the lift sensor to a rectangular wave with a prede... | 10/31/1995 |
| 5462033 | Fuel pumping apparatus A fuel pumping apparatus of the rotary distributor type has a pumping plunger (14) mounted in a bore (13) in the distributor member and a cam ring (24) operable to move the plunger inwardly in timed relationship with the associated engine. The cam ring is... | 10/31/1995 |
| 5462034 | Intensive self-diagnosing system for engine exhaust gas control components and systems Malfunction of a purge air control system is checked based on a variation of a fuel tank inner pressure or an air-fuel ratio in response to forced introduction of purge air into an engine. During a mode of checking malfunction of the purge air control sys... | 10/31/1995 |
| 5462035 | Supercharging device A supercharging device including an actuator for controlling return force of a resilient member in a continuously variable transmission (CVT) with a flyweight and a resilient member is provided. The actuator is employed so that a movable flange slides alo... | 10/31/1995 |
| 5462036 | Ignition system for internal combustion engines An ignition system for internal combustion engines with sequential spark ignition is provided which serves to ensure that the last individual spark (EZ) of a sequential spark ignition does not lead to damage to the internal combustion engine, for instance... | 10/31/1995 |
| 5462037 | A/F ratio estimator for multicylinder internal combustion engine An air/fuel ratio estimator for estimating an air/fuel ratio of a mixture supplied to each cylinder of a multicylinder internal combustion engine through an output of an air/fuel ratio sensor installed at a confluence point of an exhaust system of the eng... | 10/31/1995 |
| 5462038 | Air/fuel phase control An air/fuel control system (8) and method to maintain the air/fuel ratio of each engine bank (28) out of phase with one another. A feedback variable is generated (410-428) in response to a comparison of a difference in exhaust gas oxygen sensors (44, 55) ... | 10/31/1995 |
| 5462039 | Air-fuel ratio control system for internal combustion engine During an air-fuel ratio feedback control based on an oxygen concentration in exhaust gases which converges an air-fuel ratio toward a target ratio suitable for a satisfactory purifying efficiency of a catalyst, the air-fuel ratio is coercively deflected ... | 10/31/1995 |
| 5462040 | Method for distinguishing causes of error in the mixture forming or mixture regulating system of an internal combustion engine A method for distinguishing sources of error in a mixture formation or mixture regulating system of an internal combustion engine having an exhaust system with a lambda regulator and a heated lambda sensor is disclosed. A value of a sensor voltage is cont... | 10/31/1995 |
| 5462041 | Adjustable arrow guide An arrow guide comprising a first and a second guiding spool. Each guiding spool has a post and a head adapted to rotate about the post. Further provided is a hollow cylindrical locator which has a first sealed end and a second end. A pair of guiding hole... | 10/31/1995 |
| 5462042 | Semiautomatic paint ball gun A CO2 powered paint ball gun is provided operative to three times expand CO2 gas as it is extracted from a container of liquid CO2 and ducted to a position behind a paint ball disposed in the barrel of said gun. The gun in... | 10/31/1995 |
| 5462043 | Wood burning furnace A unitary furnace through which air is circulated for heating purposes is disclosed. A blower forces air through a number of heat exchange tubes horizontally positioned within the combustion chamber for space heating purposes. Another blower is provided f... | 10/31/1995 |
| 5462044 | Safety device for use with portable heater A portable heater includes a burner 10 disposed on the bottom of a combustion cylinder 2, a container to be heated 6 which is disposed in an upper part of the combustion cylinder for storing contents which are heated when the heater is in use, a fuel tank... | 10/31/1995 |