Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7374512 | Shift control apparatus for automatic transmission When it is decided that it is impossible to shift the automatic transmission directly to the target speed position according to the second shifting-action decision made during a shifting control to shift the automatic transmission to a target speed according to a fi... | 05/20/2008 |
| 7052436 | Method for triggering an upshift during kick-down conditions A motor vehicle for controlling an automatic gearshift stepped variable speed transmission that can be driven by a drive engine, in which, depending on an accelerator pedal position and an engine speed, upshifts or downshifts between the gear steps are triggered aut... | 05/30/2006 |
| 6442467 | Method for controlling an automatic transmission A method for controlling an automatic transmission having several gears in which a downshift to a lower gear is triggered when, during an actuation of the acceleration pedal toward an increase of the load input, a shifting characteristic line is exceeded.... | 08/27/2002 |
| 6368249 | Driver responsive power-on downshift control An improved power-on downshift control wherein the off-going clutch pressure is controlled to achieve a desired trajectory of the input shaft during the shift, and wherein the desired trajectory is scheduled to optimize shift smoothness under ordinary con... | 04/09/2002 |
| 6139470 | Control apparatus for hydraulically operated vehicular transmission A control apparatus for a hydraulically operated vehicular transmission includes a orifice, a bypass path bypassing the orifice and a switching valve provided in the bypass path. The orifice and bypass path are provided in an hydraulic oil supplying path ... | 10/31/2000 |
| 5863276 | Control system having an improved responsiveness to a third-to-first speed skip shift A control system having an improved responsiveness to a third-to-first speed skip shift by controlling a hydraulic pressure for disengaging a front clutch. The system employs a sensor for sensing the revolution per minute of an engine wherein an electrica... | 01/26/1999 |
| 5048373 | Control apparatus for automatic transmission A control apparatus for an automatic transmission is disclosed which has shift valves to which a kickdown pressure, governor pressure corresponding to vehicle velocity and throttle pressure are applied, wherein the shift valves are changed over in depende... | 09/17/1991 |
| 5010787 | Hydraulic control device for automatic transmission for vehicle adapted to engage clutch at different speed according to engine output power In an automatic transmission for a vehicle such as an automobile having a speed stage shifting mechanism including parallelly arranged first and second hydraulically operated input clutches and adapted to provide the 3rd speed stage in which the first and... | 04/30/1991 |
| 4688452 | Hydraulic control system for a motor vehicle automatic transmission A vehicle automatic transmission including a torque converter, a multiple stage transmission gear mechanism connected with the torque converter and a hydraulic control circuit for automatically selecting one of gear stages of the transmission gear mechani... | 08/25/1987 |
| 4573375 | Control system and method for automatic transmission for automotive vehicle In an automatic transmission for an automotive vehicle, an operating area covered by a high gear ratio is extended toward low vehicle speed side and the high gear ratio is released in response to the opening degree of the throttle and vehicle speed. The h... | 03/04/1986 |
| 4474084 | Shift device of hydraulic control system for automatic transmission A hydraulic control system comprises first and second shift valves which cooperate with each other to effect a shift between two gear ratios. The first shift valve has a port and two different pressure acting areas which are exposed to pressure from the p... | 10/02/1984 |
| 4467675 | Shift device for hydraulic control system for automatic transmission A hydraulic control system comprises first and second shift valves which cooperate with each other to effect a shift between two gear ratios. The first shift valve has a port and two different pressure acting areas which are exposed to pressure from the p... | 08/28/1984 |
| 4413536 | Automatic transaxle control system An automatic control system for a multiple ratio power transmission mechanism having a hydrokinetic torque converter and multiple ratio gearing, the speed ration of which is controlled by selectively engageable clutches and brakes, the control system incl... | 11/08/1983 |
| 4395926 | Hydraulic control system for automatic transmission A hydraulic control system for an automatic transmission including a fluid coupling type torque converter, and a gear system provided with two or more frictional devices adapted to establish two or more speed conditions. The hydraulic control system inclu... | 08/02/1983 |
| 4324156 | Method and apparatus for hydraulic control of automatic transmission A transmission includes a plurality of friction units to effect shifting between gear ratios, one of which includes driving and driven elements which may operate with a speed differential at the time of shifting between gear ratios. A first or line pressu... | 04/13/1982 |
| 4296651 | Automatic power transmission shift valve A shift valve for use in a hydraulic control system of an automatic power transmission, having valve spools formed with a plurality of pressure acting areas which can be selected independently of each other for providing shift points for upshifting and do... | 10/27/1981 |
| 4143563 | Hydraulic control system for use in automatic transmission A hydraulic control system for use in an automatic transmission including a fluid coupling type torque converter, and a gear system provided with two or more frictional engaging devices adapted to establish two or more speed conditions. The hydraulic syst... | 03/13/1979 |
| 4134313 | Automatic transmission for automobiles Automatic transmissions for automobiles include a hydraulic torque converter and a transmission gear mechanism which has a plurality of friction devices such as a clutch and brakes whereby a plurality of different driving stages can be provided through se... | 01/16/1979 |
| 4065985 | Oil pressure control system for an automatic transmission system An oil pressure control system for an automatic transmission system which includes a fluid torque converter, a transmission gear and friction engaging means adapted to be selectively supplied with line pressure for establishing a selected transmission eng... | 01/03/1978 |
| 4023447 | Fluid pressure control system for automatic power transmission A fluid pressure control system for automatic power transmissions including a source of fluid providing a controlled line pressure, a manual valve movable to a number of positions including range P (parking), range R (reverse), range N (neutral), range "3... | 05/17/1977 |
