...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 |
| 7789596 | System and method for forming an insulation particle/air suspension A system for forming an insulation particle/air suspension suitable for use in a process for forming an insulation product is provided, comprising: a blowing machine for forming an insulation particle/air suspension, wherein the blowing machine comprises at least on... | 09/07/2010 |
| 7395864 | Method and apparatus for preventing slug flow in pipelines Disclosed is a method and system for controlling the formation of liquid or gas slugs along a pipeline. In embodiments, an injection unit injects a liquid surface tension reducing agent, such as a foamant, into the pipeline upstream of the high point. A control unit... | 07/08/2008 |
| 7334742 | Spraying device with droplet hold-back The present application describes a spraying device with droplet hold-back. The droplet hold-back is formed by a baffle, which collects the droplets in a defined volume. From this volume, the droplets can be suctioned by means of a suction opening and supplied to a ... | 02/26/2008 |
| 7329071 | Device for the pneumatic conveying of particulate and powdery bulk material Devices for the pneumatic conveying of particulate and powdery bulk goods to obtain high conveying speeds with low energy expenditure. The devices have a fluidized conveying pipe with fluidizing elements, in which pipe the fabric layers of the fluidizing elements ar... | 02/12/2008 |
| 7316721 | Ceramic foam insulator with thermal expansion joint A canister for maintaining entrained particles in a gas stream passing there through. The canister has an outer annular member and an inner porous annular member. The inner porous annular member has rings with at least one expansion zone in each ring. An annular int... | 01/08/2008 |
| 7150585 | Process and equipment for the conveyance of powdered material The invention concerns a process and a device (2) for the pneumatic conveyance of powdered material (4), in which a cylindrical chamber (10, 12), which can be connected with a reservoir (6) by a sealable inlet (14, 16) and with a d... | 12/19/2006 |
| 7114889 | Powdery particle conveying system and roots blower operating method A powdery particle conveying system is provided in which electric power consumption can be saved when powdery particles are conveyed by use of a roots blower. In the case where the powdery particles are conveyed to a reservoir tank near the roots blower, the frequen... | 10/03/2006 |
| 7063748 | Methods for coating particles and particles produced thereby Methods of coating core materials by providing target materials and core materials; ablating the target materials to form ablated particulate target materials; and coating the core materials with said ablated particulate target materials; wherein the method is perfo... | 06/20/2006 |
| 6994497 | Method and apparatus for treating high pressure particulate material An apparatus for pneumatically conveying particulate material containing reaction products of a high pressure reactor from a supply vessel at a pressure of at least two bar to a receiving vessel at a considerably lower pressure. The apparatus includes a conveyor lin... | 02/07/2006 |
| 6851896 | Fluid barriers A fluid barrier along the inside surface of ductwork between a reactor and subsequent product separation and recovery apparatus to reduce the buildup of solids on the ductwork from a gaseous product mixture conveyed through the ductwork. Barrier fluid is sprayed alo... | 02/08/2005 |
| 6663325 | Transport system for spherical objects and method of using the transport system A transport system for a spherical object. The transport system has a supply of a first fluid and a passageway for communication of a spherical object in a path between an inlet and an outlet. At least part of the passageway is bounded by a first tube hav... | 12/16/2003 |
| 6250852 | Spherical object supplying apparatus A spherical object supplying apparatus is to positively and smoothly supply, when spherical objects such as spherical single crystal silicons are supplied from a storing container such as a hopper to the following processing or manufacturing station (or a... | 06/26/2001 |
| 6176647 | Instrument for measuring mass flow rate of powder, and electrostatic powder coating apparatus utilizing the same A miniaturized, inexpensive instrument for measuring the mass flow rate of powder, which is capable of directly outputting the mass flow rate of powder and whose characteristics are not influenced by the kind and physical properties of the powder. The ins... | 01/23/2001 |
| 6074135 | Coating or ablation applicator with debris recovery attachment An environmentally compliant triboelectric applicator and process for coating or ablating a substrate and for retrieving excess or ejected material from the substrate. The applicator comprises an inner supersonic nozzle for accelerating triboelectrically ... | 06/13/2000 |
| 6039511 | Carrying apparatus for spherical objects A apparatus for carrying spherical objects is adopted, which comprises: a housing 1; a cylindrical rotor 6 arranged in the housing, including a plurality of recess grooves 11 which are open to the outer circumferential surface, the plurality of recess gro... | 03/21/2000 |
| 5955037 | Effluent gas stream treatment system having utility for oxidation treatment of semiconductor manufacturing effluent gases An effluent gas stream treatment system for treatment of gaseous effluents such as waste gases from semiconductor manufacturing operations. The effluent gas stream treatment system comprises a pre-oxidation treatment unit, which may for example comprise a... | 09/21/1999 |
| 5935283 | Clog-resistant entry structure for introducing a particulate solids-containing and/or solids-forming gas stream to a gas processing system A clog-resistant inlet structure for introducing a particulate solids-containing and/or solids-Forming gas stream to a gas processing system. The structure is composed of a gas-permeable wall enclosing a gas flow path, and an outer annular jacket circumsc... | 08/10/1999 |
| 5846275 | Clog-resistant entry structure for introducing a particulate solids-containing and/or solids-forming gas stream to a gas processing system A clog-resistant inlet structure for introducing a particulate solids-containing and/or solids-forming gas stream to a gas processing system, including: a gas-permeable wall enclosing a gas flow path, and an outer annular jacket circumscribing the gas-per... | 12/08/1998 |
| 5769572 | Bag dumping station vacuum A bag dumping station for receiving particulate materials from rupturable bags or other portable containers is provided with a vacuum facility with a direct inlet to the hopper of the station and includes an ejector for providing motive gas for vacuum con... | 06/23/1998 |
| 5722802 | Powder delivery apparatus A powder delivery apparatus for use in a paint supply system. The apparatus has a flexible inner hose having an innermost and outermost surface with pores extending therebetween. The innermost surface defines a channel along which powder particles may flo... | 03/03/1998 |
| 5193942 | Method and apparatus for transporting liquid slurries An improved method and device to prevent erosion of slurry transport devices is disclosed which uses liquid injection to prevent contact by the slurry composition with the inner surface of the walls of the transport system. A non-abrasive liquid is inject... | 03/16/1993 |
| 5080534 | Low water materials transportation A solid material, such as sand, mineral tailings, aggregate, or sludge is selected and treated to wet the surface of the material. A low moisture content foam is generated by passing a gas through a mixture of water and a surfactant, wherein the foam has ... | 01/14/1992 |
| 5039258 | Hydraulic transporter with united streaming reversing means A hydraulic liquid transporter for changing of different pressure and flows prevailing in three chambers that are separated from each other, having a slurry filling pump that has a suction side and a pressure side, the suction side of being connected to a... | 08/13/1991 |
| 4993884 | Method and spraying apparatus for applying a layer of air-sprayed concrete Method of applying a layer of air-sprayed concrete onto a surface, wherein a pumpable and sprayable mixture of air-sprayable concrete is prepared from cement, aggregates, optional additives, and water. A given mass flow of the mixture of air-spray concret... | 02/19/1991 |
| 4947802 | Apparatus for vacuum conveyance and aerosol treatment of poultry An apparatus for vacuum conveyance and aerosol treatment of poultry has a receiving pipeline which is mounted to extend in an inclined position and connected to an elevator pipe having openings for communication with a vacuum chamber which is connected to... | 08/14/1990 |
| 4946317 | Coal log pipeline system and method of operation A method and apparatus for fabricating coal logs from crushed coal available at a mining site and for transporting coal logs through a pipeline to a combustion site for further coal processing and burning. The pipeline is operated to maintain the hydrauli... | 08/07/1990 |
| 4844664 | Conduit air dispenser for improved in-car slurrying An apparatus and method for improved in-car slurrying of dry bulk powder is described. The apparatus includes a plurality of mutually spaced conduits which extend downwardly from a manifold through the center of each hopper compartment in a hopper car, ea... | 07/04/1989 |
| 4787782 | Open mesh device for improved in-car slurrying A method and apparatus for improved in-car slurrying of dry bulk powder in hopper cars is disclosed. The individual hopper car compartments have ports in the bottom therein for admitting air under pressure and water to form the slurry. The apparatus of th... | 11/29/1988 |
| 4747814 | Fiber separator Apparatus is disclosed for use in the manufacture of rod like elements, for example cigarette filters formed of filamentary tow, for dissipating conveying gas from a conduit through which the tow is conveyed pneumatically through a series of processing st... | 05/31/1988 |
| 4600603 | Powder spray apparatus and powder spray method A powder spray gun and method of spraying powder wherein an inverted air flow amplifier is located adjacent to the inlet of the gun to enhance blending of powder within the gun and to facilitate sharp cut off and start up of powder flow from the gun. From... | 07/15/1986 |
| 4518286 | System for pumping suspended particles upward A slurry of solid particles suspended in water or some other liquid is elevated in a riser tube, extending upward from a closed vessel, under hydraulic pressure from the same liquid descending into the vessel from a hydrostatic column whose height is less... | 05/21/1985 |
| 4470727 | Apparatus and process for foamed cementing Process and apparatus for preparing a substantially uniform, gas-containing cement slurry by directing two pressurized streams of a gas-containing hydraulic cement slurry to a common in-line focal point in a generally opposed fashion so that good mixing i... | 09/11/1984 |
| 4358227 | Device for preparing and injecting sealing charges of cement The invention relates to a device for the preparation and injection of sealing cement for bolts in propping gallery roofs and walls in mines, quarries or tunnels. The device of the invention comprises a flexible pouch contained in a rigid housing which is... | 11/09/1982 |
| 4356078 | Process for blending coal with water immiscible liquid A continuous process for blending coal with a water immiscible liquid produces a uniform, pumpable slurry. Pulverized raw feed coal and preferably a coal derived, water immiscible liquid are continuously fed to a blending zone (12 and 18) in which coal pa... | 10/26/1982 |
| 4200413 | Pipelining particulate solid material as stable foam slurry A method of transporting particulate solid material through a pipeline in the form of a stable foam slurry. There is formed a pumpable slurry of the particulate solid material in a stable foam carrier medium and the slurry is flowed through the pipeline t... | 04/29/1980 |
| 4189263 | Sparger outlet having sparger loop valve assembly In a sparger outlet, openings in a sparger loop are provided with specially designed check valves to reduce or eliminate the tendency of the lading to enter the loop through the openings. The openings in the loop include a hollow cylindrical seat portion.... | 02/19/1980 |
| 4049394 | Control system for a coal gasification plant A control system maintains a predetermined volumetric ratio between fine-particle fuel and a gasification agent which are fed separately into a reactor wherein the fuel is gasified under pressure. The control system includes a first measuring means respon... | 09/20/1977 |
| 4033811 | Method and apparatus for filling of fiber material and liquid to steam phase in treatment vessel A method and apparatus for filling a treatment vessel, such as a digestor, with fiber material and liquid. A chips-liquid mixture from a pretreatment vessel is fed through a conventional feeding valve to a treatment vessel while the chips-liquid mixture i... | 07/05/1977 |
| 4025121 | High-pressure injection hydraulic transport system with a peristaltic pump conveyor A high-pressure injection hydraulic transport system for conveying solids comprises a pressurizable hopper, a peristaltic pump conveyor, multiple air domes, and means for injecting air into the pumped slurry, such that a "beachcomber" effect is produced i... | 05/24/1977 |
| 4009788 | Apparatus for transferring fuel between spaces which are at differential pressures Two spaces are provided, one of which is at a higher pressure than the other. A transfer arrangement serves for transferring a finely divided solid material, e.g., a combustible fuel, from one to the other space, usually from the lower-pressure space into... | 03/01/1977 |