Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7338213 | Barrel-shaped bearing A barrel-shaped bearing which comprises an external ring and an internal ring, at least one row of barrel-shaped rolling bodies arranged therebetween, the cage in the form of a disk which turns together with the rolling bodies, engages inside a peripheral groove aro... | 03/04/2008 |
| 7056247 | Pulley unit A pulley unit includes a pulley and a rotor concentrically disposed for relative rotation, a one-way clutch interposed in an annular space therebetween, rolling bearings provided on opposite sides of the one-way clutch, and a seal ring for sealing the annular space.... | 06/06/2006 |
| 5904038 | Supporting disk for a supporting disk bearing of an open-end spinning rotor and method of making same Supporting disks are provided for a supporting disk bearing for open-end spinning rotors, which supporting disks have an essentially cylindrical running surface defined by encircling border edges. The running surface is provided with a helically shaped gr... | 05/18/1999 |
| 5551226 | Disk for open end spinning A disk for use in a bearing assembly of an open end spinning machine having four disks arranged in two pairs and which operate at up to 15,000 RPM's while the rotor shaft turns at up to 125,000 RPM's. The disk pairs are arranged to form a wedge shaped gap... | 09/03/1996 |
| 5156378 | Bearing block having high strength to weight ratio A bearing block having an inner and outer race is provided with an enlarged axial opening through the unloaded portion of the inner race and is selectively reinforced in the region carrying the load, in order to provide an improved strength to weight rati... | 10/20/1992 |
| 4465446 | Radial and thrust bearing mountings providing independent loading A radial and thrust bearing mounting particularly adapted for a helical screw type compressor, is provided in which the radial load is isolated from the thrust load to prevent the thrust bearing from carrying any substantial radial load, and in which adju... | 08/14/1984 |
| 4462605 | Wheelchair having anti-rollback mechanism The propulsion wheels of a manually propelled wheelchair are equipped with one-way engaging and one-way freewheeling clutch devices which cooperate with races fixed to the wheelchair frame, whereby unwanted backward movement of the wheelchair is prevented... | 07/31/1984 |
| 4462321 | Sewing mechanism comprising a drag clamp assembly for holding fabric ply ends A sewing mechanism is equipped with a drag clamp assembly for holding the ends of the fabric plies. The drag clamp assembly comprises two laterally spaced-apart clamps which are movable relative to each other in the sewing direction and of which the first... | 07/31/1984 |
