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Class Information
Number: 74/733.1
Name: Machine element or mechanism > Gearing > With fluid drive > With one or more controllers for gearing, fluid drive, or clutch > With interrelated controls
Description: Subject matter wherein two of the regulating means are either controlled by a single actuator or are otherwise related such that the operation of one affects the operation of the other.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588510 |
Hydro-mechanical transmission and valve assembly |
Sep. 15, 2009 |
| 7575111 |
Hydraulic pressure control apparatus for a vehicular power transmitting device |
Aug. 18, 2009 |
| 7412913 |
Apparatus for driving an oil pump for automatic transmission |
Aug. 19, 2008 |
| 7296496 |
Method of slowing a hydrostatic drive work machine |
Nov. 20, 2007 |
| 7228762 |
Traveling gear for agricultural working machine |
Jun. 12, 2007 |
| 7047840 |
Power transmission mechanism for an engine of a vehicle |
May. 23, 2006 |
| 6952981 |
Hydrodynamic 2-speed hydraulic drive |
Oct. 11, 2005 |
| 6953416 |
Traveling gear for an agricultural working machine |
Oct. 11, 2005 |
| 6857986 |
Apparatus for controlling a plurality of hydraulic motors and clutch |
Feb. 22, 2005 |
| 6848548 |
Hydraulic regulating system for a vehicle transmission |
Feb. 1, 2005 |
| 6774780 |
Device for the advance indication of an automatically executed shift |
Aug. 10, 2004 |
| 6729990 |
Automatic gearbox |
May. 4, 2004 |
| 6622594 |
Apparatus for controlling a plurality of hydraulic motors and clutch |
Sep. 23, 2003 |
| 6622835 |
Engagement control having a multiplexed hydraulic circuit for controlling a torque converter clutch and shifting clutches in an automatic transmission |
Sep. 23, 2003 |
| 6505529 |
Reversing gear-box which can be shifted when under load |
Jan. 14, 2003 |
| 6481314 |
Vehicle travelling control apparatus |
Nov. 19, 2002 |
| 6470771 |
Transmission system |
Oct. 29, 2002 |
| 6457382 |
Method and apparatus for shifting ranges in a torque reversing mechanical transmission coupled to a hydrostatic transmission |
Oct. 1, 2002 |
| 6393945 |
Apparatus and method for preventing hunting between ranges in a continuously variable transmission |
May. 28, 2002 |
| 6343528 |
Lock-up clutch controlling device of vehicle driving device |
Feb. 5, 2002 |
| 6272950 |
Drive train for a vehicle and method of controlling a drive train |
Aug. 14, 2001 |
| 6269713 |
Vehicle with auxiliary traveling device |
Aug. 7, 2001 |
| 6260440 |
Method and apparatus for shifting ranges in a continuously variable transmission |
Jul. 17, 2001 |
| 6250180 |
Hydromechanical traveling mechanism |
Jun. 26, 2001 |
| 6199450 |
Method and apparatus |
Mar. 13, 2001 |
| 6135913 |
Power transfer system including power-interrupt auto-manual transmission, secondary power source of stored fluid pressure, and electronic throttle controls |
Oct. 24, 2000 |
| 6044728 |
Power shift transmission for a movable machine and method for controlling a power shift transmission for a movable machine |
Apr. 4, 2000 |
| 6022290 |
Power transfer system for vehicle with power-Interrupt auto-manual transmission, alternate means for providing torque to driveline, and engine throttle controls |
Feb. 8, 2000 |
| 5947242 |
Electrohydraulic control device for a drive train of a machine |
Sep. 7, 1999 |
| 5946984 |
Method and apparatus for gear shifting control with improved shift quality during gear shifting |
Sep. 7, 1999 |
| 5941270 |
Butterfly type two-way check valve for an automatic transmission |
Aug. 24, 1999 |
| 5823072 |
Vehicle drive system |
Oct. 20, 1998 |
| 5809846 |
Method of power transmission in mechanical/hydraulic type transmission system |
Sep. 22, 1998 |
| 5725455 |
Forward clutch and lockup clutch control in an automatic transmission control system |
Mar. 10, 1998 |
| 5678463 |
Process for the global control of a drive unit for a gearbox operated by a hydrostatic system |
Oct. 21, 1997 |
| 5605515 |
Control for a positive displacement machine of a hydrostatic/mechanical power shift gear |
Feb. 25, 1997 |
| 5573473 |
Apparatus and method for controlling lock-up clutch |
Nov. 12, 1996 |
| 5553517 |
All wheel drive torque control lever override |
Sep. 10, 1996 |
| 5522778 |
Automatic transmission with power take-off unit |
Jun. 4, 1996 |
| 5509520 |
Electrohydraulic control device for a drive train of a machine |
Apr. 23, 1996 |
| 5505113 |
Hydrostatic and synchronous shift transmission unit for arrangement between a drive motor and a consuming device |
Apr. 9, 1996 |
| 5493938 |
Transmission for heavy construction equipment |
Feb. 27, 1996 |
| 5491635 |
Arrangement and a process for controlling a starting device of a vehicle drive |
Feb. 13, 1996 |
| 5435211 |
Control system for torque converter |
Jul. 25, 1995 |
| 5417622 |
Apparatus for controlling lock-up clutch |
May. 23, 1995 |
| 5383379 |
Hydraulic pressure control for automatic transmission |
Jan. 24, 1995 |
| 5343779 |
Arrangement and process for operating a fail safe braking system in a continuously variable driving unit of a motor vehicle |
Sep. 6, 1994 |
| 5309790 |
System and method for controlling working hydraulic pressure for automatic transmission with fluid transmission device |
May. 10, 1994 |
| 5205192 |
Fail-safe solenoid valve apparatus for controlling oil pressure for vehicular automatic transmission |
Apr. 27, 1993 |
| 5193416 |
Mechanical-hydraulic transmission gear system and method of controlling power transmission using the system |
Mar. 16, 1993 |
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