Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7144317 | Coin sorting mechanism using controlled angular deflection In the present sorting mechanism, coins of mixed denomination roll edgewise down an inclined channel toward a static coin deflector that contains a plurality of deflection-edges. These deflection-edges are distinctly curved and elevated at different predetermined di... | 12/05/2006 |
| 7083511 | Methods A method of activating serum and glucocorticoid-induced protein kinase (SGK) is provided wherein the SGK is phosphorylated. The SGK may be phosphorylated by PDK1 and/or a preparation containing PDK2 activity. A method of identifying a compound that modulates the act... | 08/01/2006 |
| 6758736 | Coin or token sorting apparatus A coin or token sorting apparatus is disclosed. In this apparatus, a hopper within which coins are placed is provided with a floor, the floor also serving as a dispenser for spreading the coins out in generally across the floor. From one side of the floor the coins ... | 07/06/2004 |
| 6663482 | Modular coin handling and sorting device A coin handling and sorting device includes a plurality of coin handling modules which are interconnectable by a user, as desired, to define a coin travel path. Each module is easily assembled by a user without use of tools. To facilitate assembly, bases,... | 12/16/2003 |
| 6652381 | Adjustable coin acceptor gate An adjustable coin acceptor gate for use in accepting coins or tokens of all sizes from the United States coin or equivalent to the large gaming token or chip in use today in the gaming industry. The adjustable coin acceptor gate can be manually adjusted ... | 11/25/2003 |
| 6565086 | Pusher amusement machine A coin operated amusement machine of the "pusher" type has means for providing a mystery payout to the user, a mechanism for diverting coins either to the user directly as winnings or back into the playing loop, means for influencing the ratio of winning ... | 05/20/2003 |
| 5706927 | Token discriminating device A token discriminating device includes: a rolling member having two guide walls and a bottom for defining a rolling passage in which a token is rolled; and a smaller unacceptable token discriminating portion having: a cut-away portion formed in one of the... | 01/13/1998 |
| 4995848 | Coin sorters In a coin sorter of the inclined ramp type the inclined ramp has the usual support surface (2) along which the edges of the coins roll, and the usual coin face support surface (3). The support surface (3) is provided both with apertures (6, 7, 8, 9) of pr... | 02/26/1991 |
| 4971188 | Deflecting element for a coin-checking apparatus Deflecting elements and other elements contacting coins in a coin-checking apparatus are provided with plastic bodies which have a hard metallic coating to reduce wear to the exterior surface of the bodies.... | 11/20/1990 |
| 4878573 | A coin separator having a projecting wall for augmenting the separation of coins of different diameters The coin separator includes a first coin passage having an inclined rail on which two coins having larger and smaller diameters are transferred. A first inclined wall is formed sidewise of the inclined rail. An upper end of the first inclined wall is incl... | 11/07/1989 |
| 4396029 | Coin sorting apparatus and method A coin sorting device which includes an inclined coin transport rail with a coin feeding mechanism for supplying a flow of coins of different sizes to the upper end of the rail, the coin transport rail including at least one drop-through slot opening in t... | 08/02/1983 |
