...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 |
| 7401451 | Conditioning of articles A method and apparatus for the conditioning of articles. According to one aspect of the invention, a conveyor conveys articles in a conveying direction along a path. A rotatable belt assembly extends adjacent to the path. The rotatable belt assembly includes a belt ... | 07/22/2008 |
| 7156238 | Apparatus for inspecting sealed packages An apparatus for inspecting sealed packages having volumetric dimensions includes a frame having an inlet and an outlet side, conveyor means for conveying packages along a path of transport from the inlet side through said frame towards said outlet side, and first i... | 01/02/2007 |
| 7131316 | Method and apparatus for testing air permeable waterproof gloves A dry testing method for a glove (10) made with an air permeable, waterproof material (16). The stem (22) of a tee fitting (24) is connected to an air pump (20) source. A mouth (30) of the glove is tightly attached to one en... | 11/07/2006 |
| 7111737 | Method and a station for checking the integrity of packages, in particular single-dose packages A method and work station (SV) for checking the integrity of packages (2), in particular single-dose packages uses a first pressing device (4) for applying a reference force to one or a group of packages (2) for a predetermined time interval (Dt... | 09/26/2006 |
| 7013712 | Method for testing containers, use of the method, and a testing device A method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behavior of one of these pressures permitting the gas ti... | 03/21/2006 |
| 6609541 | Method for assembling and filling device a fluid dispenser product A method of assembling and filling a dispenser device for dispensing a fluid substance made up of an active substance and of a propellant. The device includes a receptacle and a dispenser member, such as a metering valve, for dispensing the fluid substanc... | 08/26/2003 |
| 6220082 | Leakage check system for liquid enclosed in vessel The leakage check system is applied to a vessel having a sealing valve unit that can close a gas passage and a liquid passage of the outlet port of the vessel. To determine the presence of a liquid leakage from the outlet port, there is provided an electr... | 04/24/2001 |
| 6164122 | System and method including multiple test chambers for automated testing for holes in prophylactic device A plurality of test chambers or fixtures are operable for successively testing a plurality of condoms, respectively, in an automated manner. Each test chamber for testing a condom includes a housing containing a porous liner having an interior cavity conf... | 12/26/2000 |
| 5939620 | Leak detecting device for detecting a leak in a container A leak detection system determines whether a container has a leak or an aperture by attempting to draw a vacuum in the container and determining whether a vacuum has been created in the container. If a vacuum can be created in a container, this indicates ... | 08/17/1999 |
| 5850036 | Apparatus for leak testing vehicle wheels An apparatus for checking leakage of a test gas through a wheel. The apparatus comprises wheel recognition apparatus for generating a first signal indicative of selected parameters of a wheel, a test cell for applying a differential pressure of a test gas... | 12/15/1998 |
| 5773711 | Can internal pressure inspection apparatus An internal pressure inspection is simply conducted for cans of types different in dimension and for assuredly removing defective cans. The inspection apparatus comprises first and second can barrel pressure detectors and a can cover pressure detector for... | 06/30/1998 |
| 5661249 | Apparatus and method for inspecting small articles The invention is a method and an apparatus for inspecting small articles. The invention includes a first rotatable support having a first circumferential surface for holding the small articles; a second rotatable support having a second circumferential su... | 08/26/1997 |
| 5535618 | Seal integrity evaluation method The present invention relates to a method for testing for leaks in the bodies of sealed containers. The method comprises first placing a hole into the body of a sealed container, and then: (a) inserting a first electrode into a sealed container containing... | 07/16/1996 |
| 5529097 | Gas tank evacuator An evacuator housing ( 14) of a gas tank evacuator (10) receives a gas tank (12). A valve seal of a movable seal head (34) and a puncture seal (66) of the evacuator housing are clamped onto the gas tank at opposite ends by a hollow threaded shaft (32) to ... | 06/25/1996 |
| 4663963 | Machine for leak testing parts by the "penetration" method A machine for leak testing parts by the "penetration" method, the machine comprises: a pivoting test chamber (1) having an open first end (2) and an opposite, closed second end (3), and being pivotable about a horizontal axis (4); a loading chute (7) for ... | 05/12/1987 |
| 4637249 | Battery can hole detecting apparatus A battery can hole detecting apparatus detects whether or not battery cans formed by a drawing operation are defective and leak because a can has a hole. Battery cans which are continuously fed in are placed on the outer surface of a rotor and thereby car... | 01/20/1987 |
| 4047421 | Apparatus for calibrating cigarette inspection device Apparatus is disclosed for calibrating a cigarette inspection device, whereby known defects, such as perforations, are placed in the wrappings of certain cigarettes as they pass through the cigarette inspection device, including a test drum for receiving ... | 09/13/1977 |
| 4033172 | Apparatus for testing hollow bodies An apparatus for testing hollow bodies comprises a frame, a testing head mounted in the frame for axial motion with respect to and rotation about an axis, means for supporting at least one of the hollow bodies in axial alignment with the testing head and ... | 07/05/1977 |
| 3948084 | Apparatus for testing cigarettes or the like A testing apparatus for cigarettes or the like has a rotary drum having axially parallel flutes for cigarettes, at least one ring-shaped carrier which is adjacent to one end and is driven at the speed of the drum about an axis which makes a small acute an... | 04/06/1976 |