...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 |
| 7353670 | Tile sponge washing and conditioning apparatus A tile sponge washing and conditioning apparatus is disclosed for washing in water a sponge used during a ceramic tile laying operation. The apparatus includes a frame for disposition thereof within the water. The frame includes a first wall and a second wall which ... | 04/08/2008 |
| 7144550 | Mobile apparatus and process for treating infectious waste A mobile self-contained apparatus and process for grinding, grating, macerating, chemically disinfecting, and drying infectious waste material. A trailer (10) contains a hopper (27), a grinder/grater (28), an enclosed conveyor system, drying and... | 12/05/2006 |
| 7096556 | Recycling method and recycling apparatus of part for image forming apparatus, and recycled part for image forming apparatus A recycling method of a part for an image forming apparatus, the part being used in the image forming apparatus and provided with a thermoplastic resin member at least in a part thereof is provided which includes: recovering the part for the image forming apparatus;... | 08/29/2006 |
| 6000645 | Axial flow, bi-rotor concrete reclaimer A concrete reclaimer having a pair of concentric mesh cylinders for separating wet concrete into its original components. The invention includes a hopper and feed screw for feeding wet concrete into the inner cylinder at a constant rate. The concrete is w... | 12/14/1999 |
| 5794862 | Processing of waste material An apparatus and method for chemically and physically stabilizing contaminated soil is disclosed. The soil is homogenized in a homogenizer; dropped into a mixer below the homogenizer and mixed with an additive; then dropped to a processing terminus locate... | 08/18/1998 |
| 5695133 | Thermoplastic washer/recycler There are a number of devices for washing/recycling thermoplastic. However, the devices tend to be designed on a scale for use at a central site. Additionally, the devices currently available do not have a positive feed travel mechanism. Rather the device... | 12/09/1997 |
| 5271570 | Method of and system for flour milling A flour milling method and system therefor comprising the steps of separating foreign materials from raw wheat, humidifying the raw wheat, polishing the raw wheat, and conditioning the polished wheat, further comprises a step of cleaning the polished whea... | 12/21/1993 |
| 5259560 | Apparatus for cleaning fibrous mats Apparatus for cleaning chicken droppings from one or more mats used as nesting material in chicken nests in a chicken house. The invention includes a housing having a plurality of rollers therein for conveying a mat and pulverizing the chicken droppings a... | 11/09/1993 |
| 5257831 | Rag tearing machines for the textile industry The rag tearing machine embodies an inlet station 1 in which the materials to be processed for a first time 23 and recycled waste 19 are poured, separately, onto the circulating belt 2. Several rag tearing stations (4a, 4b) are each followed by fan groups... | 11/02/1993 |
| 5215017 | System and method for feeding paste material or slurry into a furnace A fuel feed system and method for feeding low grade fuels to a fluidized bed furnace including an enclosure with a fuel inlet for introducing the fuel into the enclosure, an inlet for introducing air into the enclosure so as to propel the fuel through the... | 06/01/1993 |
| 5016824 | Method and apparatus for controlling the production of thermomechanical pulp Method and an apparatus for controlling the production of thermomechanical pulp meter chips by metering elements (9, 10) into a feed chest (2), and by feed elements (3, 7) connected to the feed chest feeds chips for refinement between thermomechanical pul... | 05/21/1991 |
| 4986479 | Fluid jet shredder apparatus and method of use A fluid jet shredder apparatus includes a conveyor for conveying a stream of material to be shredded. The conveyor has openings formed therein. A shredding station in position adjacent the conveyor and includes a fluid jet cutting nozzle directing a high ... | 01/22/1991 |
| 4884756 | Waste treatment system A system for the treatment of infectious waste including apparatus for receiving, shredding, disinfecting, and separating waste material. A manually operated entry device provides input for quantities of solid waste into a feeding channel wherein a feedin... | 12/05/1989 |
| 4832268 | Improved mill for grinding powder and method of using A mill for grinding powder material is disclosed having a cylindrical separation chamber into which the powder material is fed as a dispersion in a gas stream. Powdered material initially is supplied through two spaced powder inlets each located between a... | 05/23/1989 |
| 4753660 | Method for the production of a coal suspension The invention relates to an apparatus and method for producing a free flowing coal suspension high in solids content. The coal is ground in at least two stages utilizing a mill having a calibrating effect in one stage and a mill without calibrating effect... | 06/28/1988 |
| 4471916 | Apparatus for treating liquid and semi-solid organic waste materials An apparatus and method for treating for disposal organic waste material carried within a sludge, by adding to the sludge an alkali metal silicate and a setting agent, is disclosed. The apparatus includes several mixers, each having a trough with an input... | 09/18/1984 |
| 4456503 | Apparatus for manfacturing mechanical pulp A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grinding disc (1) which revolves about a central axle (2) perpendicular to the two end faces of the disc. The mater... | 06/26/1984 |
| 4454992 | Wet processing apparatus for rendering cellulosic insulation particles fire-retardant Particulate cellulose insulation material is rendered fire retardant by a wet process requiring considerably less fire retardant composition than normally employed in the usual dry processes or in wet processes proposed heretofore, and yielding a product ... | 06/19/1984 |
| 4445973 | Method and device for the manufacture of mechanical pulp A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grindstone (1) which revolves about an axle (2). The material is supplied in bulk, particulate form, preferably as ... | 05/01/1984 |
| 4177952 | Impact scrubber An impact scrubber for removing coating materials from the surfaces of particulate matter such as foundry sand and the like comprises a lift tube open adjacent upper and lower ends for containing a high velocity fluidized stream of said particulate matter... | 12/11/1979 |
| 4175708 | Method of transporting liquid pitch containing lumpy cokes and apparatus therefor Disclosed is a method of transporting liquid pitch containing lumpy coke wherein the lumpy coke contained in the liquid pitch is pulverized by a specific procedure and the pitch containing the thus pulverized coke is then transported. Disclosure is also m... | 11/27/1979 |
| 4088528 | Method and apparatus for grinding chips into paper pulp In the continuous production of paper pulp from ligno-cellulose raw material, the raw material is subjected to grinding and/or delignification by passing it in the form of small pieces between interpenetrating helicoidal surfaces driven synchronously in r... | 05/09/1978 |
| 4032446 | Waste material handling system An improved waste material handling system includes a plurality of waste food disposer units which are operable to disintegrate waste food materials to form a slurry. The system also includes a pulper unit which is operable to disintegrate solid waste mat... | 06/28/1977 |
| 3948448 | Method for the fine comminution of solid materials with a rolling mill and comminution device for carrying out the method An improved comminuting rolling mill wherein a solid material such as mineralic loose or bulk materials are introduced into a gap between opposed parallel counter rotating comminuting rollers with the material being supplied by a delivery device above the... | 04/06/1976 |