Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7124854 | Transmission device of vehicle A transmission device of a vehicle is equipped with a shaft, a driven wheel with internal gear teeth defined thereon mounted to the shaft center thereof, and a small driving gear with outer gear teeth defined thereon in mesh with the internal gear teeth of the drive... | 10/24/2006 |
| 6634452 | Electric scooter power switching device A power switching device mounted on an electric scooter is provided. The device comprises a coupling mechanism including a seat and an n-shaped connection member, a switching mechanism including a bent lever, an elastic mechanism, and a drive mechanism. T... | 10/21/2003 |
| 6547018 | Transmission for wheelchair A transmission for a wheelchair capable of selecting a manually operated manner and a motor-driven manner. The transmission includes: a transmission unit installed on the wheelchair for driving the wheelchair; a clamping unit for fixing the transmission u... | 04/15/2003 |
| 5042239 | Power transmission and steering apparatus for vehicles A power transmission and steering apparatus for vehicles includes an engine coupled for rotating a pair of coaxial, spaced-apart driver wheels formed of a low durometer plastic material. A pair of discs are positioned in an opposed, spaced apart relation ... | 08/27/1991 |
| 4498552 | Lawn mower friction drive mechanism A friction drive mechanism is provided for machinery such as a lawn mower wherein a driven wheel is provided with an outer ring that slips upon initial engagement with a driving disc. The coefficient of friction between the inner surface of the ring and t... | 02/12/1985 |
| 4237991 | Self-propelled lawn mower A self-propelled rotary lawn mower including a multi-speed transmission comprising a drive shaft which is driven by a prime mover and is rotatably mounted on a mower frame in parallel relationship to the rear wheel axle. Also included is a drive mounted o... | 12/09/1980 |
| 3995709 | Automatic continuous transmission A variable-diameter power-transmission device comprises a rotatable member and a plurality of arms attached at their inner ends to the rotatable member and extending outwardly in a radial direction, the arms being curved at their outer ends in a circumfer... | 12/07/1976 |
