Bizarre Patents
A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person.
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 |
| 5876305 | Automatic transmission control system for automobiles An automatic transmission control system, which includes a 2-4 brake having a servo apply fluid chamber and a servo release fluid chamber and a 3-4 clutch having a fluid chamber and causes a 3-2 shift by engaging the 2-4 brake and disengaging the 3-4 clut... | 03/02/1999 |
| 5188005 | Method and system for improving smoothness of shifts in an automatic transmission To reduce shift bump and increase smoothness during shifts, pressure into an on-coming clutch of an automatic transmission is electronically controlled using a turbine speed adaptive strategy. Because of the change in engine speed that accompanies this to... | 02/23/1993 |
| 5020393 | Hydraulic controller for an automatic transmission A hydraulic controller for an automatic transmission, having a band brake having a large stopping force based on a self-boosting effect against rotation in a self-binding direction and having a comparatively small stopping force against rotation in the un... | 06/04/1991 |
| 4911036 | Pressure regulating arrangement for automatic transmission A pressure regulating valve has a bore in which in a spool and an accumulator piston are disposed. A spring is disposed between the two elements and arranged to bias the spool in a first axial direction which tends to maximize the amount of hydraulic flui... | 03/27/1990 |
| 4903549 | Shift control system for automatic transmission A hydraulic control system for an automatic transmission comprises a one-way valve arranged between a hydraulic line leading to a second speed apply chamber of a band brake and a hydraulic line leading to a fourth speed apply chamber of the band brake in ... | 02/27/1990 |
| 4867014 | Accumulator/friction element arrangement for automatic transmission The stroking order of the band brake servo piston and the accumulator piston are reversed under high and low transmission loads, therefore reversing the pressure modifying effects provided by the same. This is achieved by selecting the various areas and s... | 09/19/1989 |
| 4831900 | System for controlling rate of speed change in automatic transmission A control system for an automatic transmission employed in a vehicle comprises a torque converter coupled with an engine, power transmitting gear arrangement disposed at an output end of the torque converter, a speed change mechanism for giving rise to sp... | 05/23/1989 |
| 4779491 | Automatic transmission control system In an automatic transmission, a second brake is engaged when the transmission is in second and is released when the transmission is in third and first. The second brake is controlled by a hydraulic actuator. Application of the hydraulic pressure to the hy... | 10/25/1988 |
| 4763545 | Hydraulic control system for automatic transmission A hydraulic control system comprises a control valve with a solenoid valve operatively connected thereto to modulate the characteristic of hydraulic fluid pressure supplied to a friction element that is to be engaged during a shift in speed ratio. The cur... | 08/16/1988 |
| 4754403 | Hydraulic pressure control system of automatic transmissions for vehicle A hydraulic pressure control system used to reduce the shock associated with the shifting of a vehicular automatic transmission, wherein the speed of the transmission output shaft and the locking element of a planetary gear set are measured, and pressure ... | 06/28/1988 |
| 4729265 | Shift shock suppression arrangement for automotive automatic transmission In order to obviate shift shock during shifting between second and third gears in a transmission wherein a front clutch and a band brake having apply and release chambers, an accumulator is connected to the circuit via which line pressure is supplied from... | 03/08/1988 |
| 4579020 | Hydraulic control system for automatic transmission A hydraulic control system for an automatic transmission comprises a shift valve being communicating with a first chamber, and a second shift valve communicating with second and third chambers in addition to the first chamber. The first shift valve has an... | 04/01/1986 |
| 4555964 | Hydraulic control system for automatic transmission with shockless 4-3 shifting as well as shockless 2-3 shifting Disclosed herein is a hydraulic control system wherein under the control of a servo release changeover valve 23, a line pressure is supplied to a servo release fluid chamber (S/R) for a brake (B2) via a first flow path (434-435-437-444) at a flow rate det... | 12/03/1985 |
| 4501174 | Hydraulic control system for automatic transmission A hydraulic control system for an automatic transmission comprises a first shift valve and a second shift valve which are coupled with a first port and a second port of a manual valve, respectively. The first shift valve receives a forward drive range pre... | 02/26/1985 |
| 4347764 | Hydraulic control valve system for a planet gear transmission particularly for motor vehicles A control valve system for a planetary transmission having planetary gear elements and clutch and brake means for controlling the relative motion of the gear elements, said clutch and brake means including a second speed ratio brake servo having a double ... | 09/07/1982 |
| 4347765 | Multiple ratio overdrive transmission A multiple ratio automotive vehicle transmission having a hydrokinetic torque converter and a compound planetary gear unit that establish a plurality of underdrive ratios, a direct drive ratio and an overdrive ratio, the ratio changes from the first under... | 09/07/1982 |
| 4334441 | Gearshift timing control arrangement for automatic power transmission In an automatic power transmission for an automotive vehicle, the hydraulic control system has incorporated therein a gearshift timing control arrangement for controlling the overlap and neutral intervals between the timings at which frictional units cont... | 06/15/1982 |
| 4324154 | Hydraulic control system of automatic power transmission In a hydraulic control system of an automatic power transmission for an automotive vehicle, the frictional units in the transmission mechanism are operated by a line pressure which is regulated to vary with torque output of the engine and which is reduced... | 04/13/1982 |
| 4309919 | Upshift scheduling valve for use in hydraulic transmission control system In a hydraulic control system for an automatic power transmission, there is provided an upshift scheduling valve by means of which the release of a frictional unit contributive to the second forward drive gear ratio is retarded in relation to the rate at ... | 01/12/1982 |
