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 |
| 7464618 | Hydraulic control apparatus for an automatic dual clutch transmission A hydraulic control apparatus and method of controlling it for an automatic dual clutch transmission, which includes a first clutch with a first partial transmission and a second clutch with a second partial transmission, as well as a shifting system for engaging/re... | 12/16/2008 |
| 7430936 | Method for the control of operational sequencing in an automatic transmission of auxiliary construction A method for controlling operational sequencing of gears in an automatic transmission (102) which has been built in an auxiliary mode. In the case of such a shifting transmission it is possible that during the engagement of its transmission gear stage, impact... | 10/07/2008 |
| 7328762 | Electric vehicle An electric vehicle has traveling units, first and second electric motors for driving the respective traveling units, a speed adjusting lever for adjusting a speed of the traveling units, a speed adjustment mechanism for generating a speed adjusting signal in respon... | 02/12/2008 |
| 7073407 | Integrated control module for use in a dual clutch transmission having integrated shift actuator position sensors An integrated control module for a dual clutch transmission having an integrated shift actuator position sensor assembly that includes a valve body having a plurality of raised portions juxtaposed to each other with a plurality of shift actuator bores piston bores f... | 07/11/2006 |
| 6951526 | Motor vehicle comprising a drive train having a multiple clutch drive A power train for a motor vehicle includes a drive unit, a gearbox having first and second input shafts, and a clutch having first and second multi-disk clutch arrangements assigned to respective input shafts for transferring torque between the drive unit and the ge... | 10/04/2005 |
| 6929097 | Lubrication device for stage-geared gearbox An arrangement for providing a lubrication device for a stage-geared gearbox (1, 2) arranged in a motor vehicle. The gearbox (1, 2) has an input shaft (4), intermediate shaft (5), which has at least one gear meshing with a gear on the inp... | 08/16/2005 |
| 6846267 | Gearbox adaptor A gearbox adaptor (2) which can be combined with a standard vehicle gearbox to convert a standard gearbox to a sequential gearbox. Some or all of the gears (5, 6) of a standard gearbox have the synchro-hubs and cones removed and one or more gearbox ada... | 01/25/2005 |
| 6631651 | Hydraulic circuit for an automated twin clutch transmission for motor vehicles A hydraulic circuit, particularly any for an automated twin clutch transmission for motor vehicles, including a countershaft with two parallel power transmission branches, two clutches, a high pressure circuit having at least one actuator for the counters... | 10/14/2003 |
| 6019011 | System for control of auxiliary section of compound transmissions A control system for auxiliary section range and/or splitter control includes a direct ported control valve assembly having a spool disposed within a bore of a cover housing, the spool having a differential area to bias the valve and two sealing members r... | 02/01/2000 |
| 5974907 | Machine tool transmission with an improved gear shifting device A machine tool transmission for use in changing the torque and speed of a spindle rotatingly driven by an electric motor comprises a transmission casing, input and output shafts mounted on the transmission casing in a spaced-apart, parallel relationship f... | 11/02/1999 |
| 5233878 | Closed loop control for transmission shift fork position A hydraulic closed loop control for positioning a transmission shift rail and synchronizer fork has recesses on the rail and ports in a valve body in which the rail is disposed. Fluid flow between the ports as permitted by the rail recesses controls the p... | 08/10/1993 |
| 5012725 | Three position actuator for shifting a two speed transfer case The present invention includes a three position actuator which is used to position the gear range control lever on a two speed transfer case. Three positions are required to achieve HIGH, LOW and NEUTRAL. Two individual air chambers may be selectively cha... | 05/07/1991 |
| 4748863 | Fluid actuated shift bar housing assembly Provided is a transmission gear change shift bar housing assembly (100) that features a pair of shift bars (18, 24) respectively slidably disposed within bores (7, 9) in a housing (4) that are respectively attached to pistons (14, 22) that respectively de... | 06/07/1988 |
| 4722237 | Fluid actuated shift bar housing assembly having a centering cylinder therein A pressurized fluid actuated shift bar housing assembly (12) for a change gear transmission (10) is provided having a plurality of shift bars (54, 56, 58), each shift bar having associated therewith a first (108) and a second (110) selectively pressurized... | 02/02/1988 |
| 4643037 | Gear change mechanism A gear change mechanism for a machine tool in which shifting forks with sliding gears and constant mesh gearing using clutch and/or brake shifting is eliminated. A shiftable gear mechanism is presented in a gear train for meshing engagement with any one o... | 02/17/1987 |
| 4543840 | Transmission apparatus A transmission apparatus includes a large number of selectable gear ratios. The transmission apparatus includes first and second primary gears mounted on rotatable shafts having offset axes of rotation. A plurality of pairs of secondary gears, each includ... | 10/01/1985 |
| 4531422 | Transmission shift rod interlock system A shift rod air interlock system provides a mechanical apparatus for insuring a neutral position in a two-speed air shifted compound transmission whenever air to an auxiliary air shift cylinder is interrupted. The apparatus prevents the transmission from ... | 07/30/1985 |
| 4466304 | Power transmission The power transmission has two pairs of coaxial shafts (1,15 and 2,30 respectively) which are aligned with one another and are displaceable relative to one another and carry at their adjacent ends a coupling disc (3,16 and 4,31 respectively) upon each, wh... | 08/21/1984 |
| 4445393 | Fluid actuated shift bar housing assembly A fluid actuated shift bar housing assembly for a change gear transmission wherein the shift bars are biased to an axially centered neutral position by constant fluid pressure in a constantly pressurized chamber and are selectively axially moved to an axi... | 05/01/1984 |
| 4352503 | Automatic transmission shifter for bicycles An automatic transmission for a human powered vehicle is disclosed having an improved speed sensing mechanism. A rotatable shaft is journalled in a support frame mounted on the vehicle and has a plurality of outwardly extending arms fixed to the shaft. We... | 10/05/1982 |
| 4323221 | Power actuated valve An actuator for a valve, said valve including a cylindrical valve body having a valve member disposed therein with a first gear attached to said valve member. A second gear is provided for drivingly engaging said first gear to operate said valve member. A... | 04/06/1982 |
| 4316596 | Power actuated valve A power actuated kelly valve includes a cylindrical valve body having a valve member disposed therein with a first gear attached to said valve member. A second gear is provided for drivingly engaging said first gear to operate said valve member. A support... | 02/23/1982 |
| 4312243 | Change-under-load transmission The invention relates to a change-under-load transmission having an input shaft (1) and an output shaft (6), each carrying a pair of gearwheels (2, 3; 4, 5). A composite layshaft comprises two pairs of coaxial shafts (7, 8; 9, 10) which are aligned axiall... | 01/26/1982 |
| 4173905 | Change-speed gearboxes A change-speed gearbox has coaxial input and output shafts. Five intermediate shafts are equi-spaced around the input shaft and each has two gears fixed thereto, one of which meshes with a common gear on the input shaft, the intermediate shafts being mova... | 11/13/1979 |
| 3941007 | Control system for shifting a drive transmission Pneumatically operated devices respond to movement of a shift lever by decoupling change speed gears from both the input and output of a transmission and then brake the gears to a stop, shift gear engagements as necessary, release the brakes and re-engage... | 03/02/1976 |
