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 |
| 5464128 | Electrically operated dispensing appliance having two electric motors for advancing and retracting thrust rods The electrically operated dispensing appliance comprises two electric motors (1, 26), one of the electric motors (1) acting upon the driving screw (70) through a first gear drive (2) having a greater reduction ratio in order to rotate the driving screw in... | 11/07/1995 |
| 4734626 | Double differential, electrically compensated constant speed drive An electrically compensated constant speed drive (ECCSD) according to the present invention includes a pair of power transmission paths between the prime mover and a load wherein each power transmission path includes a mechanical differential having a fir... | 03/29/1988 |
| 4354144 | Transmissionless drive system A continuously variable transmissionless drive system providing maximum torque at low speeds. The system is usable in a hybrid vehicle having a prime mover, such as an internal combustion engine, operated at its optimum rpm for efficiency. The prime mover... | 10/12/1982 |
