...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 |
| 7347313 | Method of equally spacing items in article handling systems To equally space items along a first path, a predetermined number of items is moved towards each other to minimize distances between the items, and a gear mechanism is engaged with each item. The gear mechanism includes crossed bars, wherein pairs of the bars are co... | 03/25/2008 |
| 7088274 | Difference amplifier for digital-to-analog converter An improved circuit is provided that buffers the output of a DAC while improving the bandwidth and linearity of the circuit. A DAC comprises an output signal of a switched DAC circuit coupled to an inverting node of an output buffer configured as a difference amplif... | 08/08/2006 |
| 7017640 | Method and apparatus for manufacture of swatch-bearing sheets A method and apparatus are provided for high speed manufacture of swatch bearing sheets wherein each sheet is directed through various operating stations via a single set of sheet engaging members. Individual sheets are removed from a stack of sheets at a feeding st... | 03/28/2006 |
| 7007601 | High speed mounting and printing for colored chips on a sheet A method and apparatus use an in-line printer to print on chips or swatches mounted on an underlying substrate such as a sheet or web of paper or paperboard. The chips may have varying heights due to variations of thickness of the paint on the chip and/or adhesive m... | 03/07/2006 |
| 6446692 | Apparatus and method for mounting electronic parts An apparatus for mounting electronic parts on a printed circuit board in which a number of electronic parts to be mounted on a printed circuit board are arranged as a set and loaded in a loading member for electronic parts. A set of such loading members f... | 09/10/2002 |
| 6209608 | Method and apparatus for making fluid delivery device A method and apparatus for the high volume manufacture of fluid infusion devices which embody a self-contained, stored-energy source for expelling fluids from the reservoir of the device into an ambulatory patient at precisely controlled rates over extend... | 04/03/2001 |
| 6129804 | TFT panel alignment and attachment method and apparatus A system for aligning and attaching together a plurality of thin film transistor tiles for constructing a flat panel display. A coverplate loading station where a coverplate that the tiles are to be attached to is arranged on a coverplate support. A cover... | 10/10/2000 |
| 6030481 | Method and apparatus for manufacture of swatch bearing sheets Color swatch charts are formed by feeding sheets eighteen inches or longer in length with this long dimension of the sheet disposed transversely to the sheet travel direction. Ribbons in a row of eighteen inches or longer are simultaneously severed with t... | 02/29/2000 |
| 5779846 | Machine for embedding copper nuts in a workpiece A machine for embedding copper nuts in pasted holes of a workpiece, including a machine base holding two horizontal sliding rails and four upright guide rods, a mold carrier reciprocated along the sliding rails, a mold carried on the mold carrier and havi... | 07/14/1998 |
| 5701101 | Charge amplifier for blast gauges The present invention is a charge amplifier that directly produces a low impedance voltage output proportional to the charge at its input. The invention consists of an operational amplifier, an input capacitor, a feedback capacitor and a feedback resistor... | 12/23/1997 |
| 5622594 | Apparatus for the manufacture of sheets bearing display samples Apparatus for producing sample parts arranged in an array on a base sheet. The apparatus includes a roller about which webbing of the sample material is drawn, the webbing being severed to form the sample parts and to transport the sample parts to a trans... | 04/22/1997 |
| 5409565 | Apparatus for the application of preferably adhesive coated slips or pieces of tube to a moving web or to workpieces being conveyed An apparatus for the application of adhesive coated slips to a moving web or to workpieces being conveyed, and preferably to the drawn up and still open bottoms of bags, consists of pairs of feed rolls for a web of material and means for perforating and t... | 04/25/1995 |
| 5332462 | Apparatus for assembling fiberglass grating from pultruded fiberglass grating bars An apparatus for assembling a fiberglass reinforced grating from preformed bearing bars and cross bars includes an elongated open frame table having a plurality of rollers in side-by-side fashion with their axes transverse to the longitudinal axis of the ... | 07/26/1994 |
| 5201983 | Apparatus for fabricating a five-piece expanding pocket A five-piece expanding pocket having front inner and outer panels secured to each other by cohesive glue, rear inner and outer panels secured thereof by cohesive glue, and a gusset having outer edge portions with cohesive glue on opposite sides thereof bo... | 04/13/1993 |
| 5055154 | Method and apparatus for affixing labels and/or foils to bottles A method and an apparatus for fixing members such as labels and foils to bottles wherein cut-to-size members are picked up at pick-up station, glue coated as they are picked up and pressed onto a bottle on their glue coated side. The members are severed f... | 10/08/1991 |
| 4851073 | Apparatus for connecting tiles in sets A plurality of tiles arranged as a set the same as are pasted onto a wall or floor are integrally connected with one another by pasting rectangular connecting pieces made of such sheet materials as of paper, cloth or resin film onto the back surfaces of t... | 07/25/1989 |
| 4654108 | Unit tile pack manufacturing apparatus The invention relates to an unit tile pack manufacturing apparatus. The apparatus comprises a tile pack conveying passage (8) for conveying a plurality of pallets (9), a combination tile pack forming unit (100), a joint alignment correcting unit (15), an ... | 03/31/1987 |
| 4451324 | Apparatus for placing chip type circuit elements on a board An apparatus for locating chip type circuit elements on a printed circuit board includes an accommodating assembly for temporarily storing said circuit elements supplied from hoppers, a movable shutter placed under the accommodating assembly, and which su... | 05/29/1984 |
| 4422893 | Method of manufacturing mirrors and mirrors so obtained A method of manufacturing a mirror which comprises the steps of selecting a former of shape complementary to the shape of the desired mirror surface, applying to such former a plurality of mirror elements each constituted by a glass element having a refle... | 12/27/1983 |
| 4409058 | Band type strapping machine A band type strapping machine comprises a feeding and tightening roller driven by a motor, an auxiliary roller in contact with the feeding and tightening roller, a cam shaft which is rotated by the motor through a reduction gear and a clutch mechanism and... | 10/11/1983 |
| 4375380 | Process and installation for manufacturing a photothermal converter apparatus The manufacturing of at least one photothermal converter element according to the invention consists essentially of implanting a multiplicity of substantially uniformly distributed parallely projecting transparent fibers onto a baseplate element provided ... | 03/01/1983 |
| 4351687 | Machine for coiling strip material with a device for momentary immobilization of the tails of the strips A machine for coiling material in strips is equipped with a device for immobilization of the strip tail at the end of a coiling phase. The immobilization device includes at least one support carrying a roll of adhesive tape and a pressing roller for press... | 09/28/1982 |
| 4351694 | Rack for laying Italian and quarry tile An improved rack for laying tiles with provision for preventing contact of the main rack surfaces with the tile adhesive and with means for adjustment of rack dimensions to permit accommodation of different tile sizes. A lightweight and inexpensive rack i... | 09/28/1982 |
| 4230513 | Method and apparatus for making raised and flat letter signs A signmaker's jig assembly incorporates a signblank-supporting worktable, a setting bar movable over the signblank for guiding the alignment of a line of letters to be installed on the signblank, a letter staging zone incorporating a letter aligning stagi... | 10/28/1980 |
| 4078357 | Method and apparatus for inserting and fastening an adhesive-coated ring into a group of four cans This invention relates to a novel method for detachably fastening cylindrical cans together in assembled relation which includes mounting a generally rectangular ring-like insert on a compressible pick-up member carried by a mandrel preparatory to applyin... | 03/14/1978 |
| 4061528 | Apparatus for the manufacture of prefabricated lined wall sections Apparatus for automatically constructing prefabricated wall sections of brick wall panels with a tile lining. A prefabricated brick wall panel has columns of mortar disposed in parallel strips thereon, a lining panel of unconnected tile members is assembl... | 12/06/1977 |
| 4061521 | Method and apparatus for manufacture of swatch bearing sheets A method and apparatus are disclosed for the manufacture of a colored chip or colored swatch bearing sheet, i.e. a color chart, comprising a base sheet bearing an array of adhesively attached colored chips in rows with indicia identifying the color of eac... | 12/06/1977 |
| 3956054 | Microfiche converter and updater apparatus Microfilm is converted into microfiche by feeding the film through a cutter, cutting the film into one or more frames, and then mounting the frame(s) upon a transparent microfiche base. The microfilm has a pair of adhesive strips along the top and bottom ... | 05/11/1976 |