Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7591202 | Gear box power control system for a small gasoline engine A gear box power control system is disclosed to be consisting of a centrifugal clutch with integral bell housing drive, a gear train for speed reduction and torque enhancement, an output jackshaft with an engaging system to disengage and engage engine power to a pri... | 09/22/2009 |
| 7290964 | Drilling/tapping/unscrewing apparatus A drilling/tapping/unscrewing apparatus including a transmission shaft of a power source on which a drilling ratio gear, a tapping ratio gear and an unscrewing ratio gear are mounted for transmitting the power of the power source to a bit. The apparatus further incl... | 11/06/2007 |
| 7267023 | Miter gear transmission A miter gear transmission includes a driving shaft, an idler cluster and a driven shaft. The idler cluster includes two cone-shaped gear sets, each having a proximate end with a gear having a largest number of teeth and a distal end with a gear having a smallest num... | 09/11/2007 |
| 7165640 | Traction chain comprising a gear mechanism integrated in a wheel Traction chain for an automobile vehicle including a wheel support (K) which supports a rotating hub designed to receive a drive wheel (W), and a rotating toothed wheel having the same rotation axis as that of the drive wheel, the toothed wheel meshing directly with... | 01/23/2007 |
| 7159483 | Power switching system for acoustic apparatus It is sought to simplify the arrangement of the drive power switching system for an acoustic apparatus, thus permitting immediate switching of the drive power. A drive power switching system comprises driven gears always in mesh with a main drive gear located betwee... | 01/09/2007 |
| 6609440 | Structure of a variable transmission device A structure of a variable transmission device includes an input shaft driven by a motor to perform alternate rotation having a gear on a middle portion, an output shaft having a pair of gears secured to the upper and lower ends respectively and a speed ch... | 08/26/2003 |
| 4749004 | Airflow control valve having single inlet and multiple outlets A valve apparatus interconnects a single inlet duct with a plurality of outlet ducts. The apparatus has a manifold body that provides a passageway between the inlet and the outlets. Operatively positioned in each outlet is a butterfly valve. A single driv... | 06/07/1988 |
