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 |
| 5704862 | Dual sided poly-V drive belt and pulley therefor This invention relates to dual-sided multi-ribbed power transmission belts having a plurality of longitudinally extending, transversely spaced alternating ribs and grooves with the ribs having a distance between their midpoints of a pitch P on both sides ... | 01/06/1998 |
| 5382198 | Helically grooved multi-ribbed power transmission belt A multi-ribbed power transmission belt having transverse grooves in the compression section which are oriented other than perpendicular to the longitudinal direction of the belt such that any transverse grooves in immediately adjacent longitudinal ribs ar... | 01/17/1995 |
| 5318485 | Chain-belt A power transmission (10) chain-belt (32) is disclosed that is especially adaptable for connecting the pulleys or sheaves (12, 14) of a pulley transmission (10). The chain-belt (32) has a plurality of interleaved sets (34) of transversely arranged links (... | 06/07/1994 |
| 5299984 | Frictional transmission chain A frictional transmission chain drive for use between V-groove pulleys comprises a series of C-shaped chain struts and friction force struts superposed along the length of an endless transmission chain. The chain struts are fitted in grooves located acros... | 04/05/1994 |
