...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.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7681481 | Calibrated taper crimp die An ammunition case reloading die assembly, and method of use, that provides calibrated adjustment of taper imposed on the mouth of an ammunition case. A calibrating ring or cap bears indicia in the form of polygonal faces, splines or radially-directed markings. The ... | 03/23/2010 |
| 6142054 | Apparatus for filling shell bodies with sub-projectiles Device for filling a shell body with a plurality of sub-projectiles including a U-shaped assembly centering device coupled with a cover. A reservoir, formed between the assembly centering device and the cover, includes a slit-like shaped rectangle in cros... | 11/07/2000 |
| 4475435 | In line bullet feeder A bullet feed assembly for a shell casing reloader, the assembly including a housing having a passage, a gravity feed bullet reservoir connected to the upper end of the passage, a first pair of catch members pivotally mounted in the housing for movement i... | 10/09/1984 |
| 4455915 | Cartridge hopper for loading machine A feed hopper for shell casings for use with a cartridge loading machine. The hopper is in the form of a container having curving interior surfaces, the surfaces extending to a feed aperture at the bottom of the hopper connected to a feed tube. Preferably... | 06/26/1984 |
| 4429610 | Shell reloader An automatic shell reloader of the type having a fixed platen and a die platen, the die platen having a plurality of dies for performing the reload function and being moveable toward and away from the fixed platen to reload a shell case, the improvements ... | 02/07/1984 |
| 4425833 | Cartridge case holder apparatus Apparatus for holding a cartridge case during a reloading operation that includes a jaw holder having a first groove extending linearly thereacross, second and third grooves intersecting the first groove at right angles and extending away therefrom in opp... | 01/17/1984 |
| 4331063 | Cartridge reloading press An apparatus for reloading spent ammunition shells includes a plurality of tools supported on a shaft above an elevatable carriage which define a plurality of reloading stations spaced circumferentially about the shaft, one of the stations having a primin... | 05/25/1982 |
| 4328735 | Progressive shotshell reloading This invention relates to some unique mechanical devices, which, when attached in natural sequence to a shotshell reloading press, allows faster, smoother and more compatable performance of said press. Specific devices which are included are, (1) a device desi... | 05/11/1982 |
| 4228724 | Ammunition loader A press type ammunition loader in which the casings are sequentially advanced through a series of work stations by means of a shuttle bar which is reciprocated along the line of the work stations and also moved laterally into and out of engagement with th... | 10/21/1980 |
| 4020737 | Cartridge loading machine A manual cartridge loading machine. The machine has six stations at which cartridges are operated on. Cooperable with the stations is a manually actuatable head carrying dies which execute the operations on the cartridge cases. The operations which are ex... | 05/03/1977 |