"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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 |
| 7216748 | Method and apparatus for releasing torque on a drivetrain The present invention is a drivetrain that prevents the torque from a decelerating engine from being transmitted to the wheels of the vehicle. The drivetrain of a vehicle is provided such that the negative torque from the decelerating engine of the vehicle is select... | 05/15/2007 |
| 5946984 | Method and apparatus for gear shifting control with improved shift quality during gear shifting An apparatus for gear shifting control with improved shift quality during gear shifting includes a gearbox unit containing at least one gear branch for power transfer via a hydrodynamic clutch. The hydrodynamic clutch can be coupled in series with a mecha... | 09/07/1999 |
| 5030179 | Discrete-ratio transmissions A manually-shifted transmission for use in passenger cars and trucks includes a number of constantly-meshed pairs of gears for coupling one shaft to another through a dog clutch on the power output gear of each gear pair. Also included in this basic confi... | 07/09/1991 |
| 4964843 | Power transmission unit for variable-speed drive of machinery In a power-transmission unit for variable-speed drive of machinery with hydro-dynamic speed-superposition of a differential gear a second torque converter is provided as a braking device. This increases the effectiveness of the unit by feedback of the sup... | 10/23/1990 |
| 4726255 | Power transmission system for driving a variable speed processing machine A power transmission system serves to drive a variable-speed processing machine normally in a lower speed range and if necessary in an upper speed range. The system essentially comprises the following elements which are all disposed coaxially to one anoth... | 02/23/1988 |
| 4671062 | Torque converter having valve means for detecting speed ratio of torque converter A speed ratio detecting valve means of torque converter comprising a hub of a stator vane spline fitted onto a fixed shaft and being freely rotatable through a prescribed play angle, the hub being permitted to rotate relative to the fixed shaft by said pl... | 06/09/1987 |
| 4615239 | Ship gear train arrangement A ship gear train arrangement includes a differential gearing between a main input shaft and output shaft and a parallel shaft with a hydrodynamic coupling (50). The parallel shaft connects a point (at 60) of the main input shaft on the input side (30) of... | 10/07/1986 |
| 4459873 | Marine propulsion system A propulsion transmission for a ship having a reversibly driven propeller shaft with a fixed pitch propeller and a torque converter of the single stage and fixed housing type for driving the propeller in the reverse direction. A planetary gear system is p... | 07/17/1984 |
| 4289044 | Motor vehicle transmission A motor vehicle hydrodynamic transmission is provided with a torque converter and a planetary gear train. In order to provide a compact transmission arrangement, the stator of the torque converter is connected to the planetary gear carrier by means of a f... | 09/15/1981 |
| 4184386 | Multi-speed transmission, especially for motor vehicles A multi-speed transmission, especially an automatic transmission for vehicles with at least three speeds, utilizing fluid circulations and force-lockingly operable engageable units for the shifting of the transmissions, especially with the use of epicycli... | 01/22/1980 |