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Class Information
Number: 180/423
Name: Motor vehicles > Steering gear > With fluid power assist > With condition modulated steering > With electrical control > Vehicle speed condition only
Description: Subject matter in which the condition of operation is the velocity only of the vehicle for controlling the flow of pressure fluid to the movable means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7389848 |
Hydraulic power steering assistant |
Jun. 24, 2008 |
| 7364004 |
Apparatus for use in turning steerable vehicle wheels |
Apr. 29, 2008 |
| 7311033 |
Retroactive device |
Dec. 25, 2007 |
| 7251933 |
Flow rate control device for power steering |
Aug. 7, 2007 |
| 7124855 |
Flow controlling apparatus for power steering |
Oct. 24, 2006 |
| 7055643 |
Apparatus for controlling a power-assisted steering gear in response to vehicle speed |
Jun. 6, 2006 |
| 7040449 |
Power steering gearbox mechanism for a vehicle including a hydraulic fluid flow control device dependant from a speed at which the vehicle is running |
May. 9, 2006 |
| 6981568 |
Vehicle speed response type power steering system |
Jan. 3, 2006 |
| 6856870 |
Power steering system |
Feb. 15, 2005 |
| 6845310 |
Power steering system |
Jan. 18, 2005 |
| 6708795 |
Steering damper system |
Mar. 23, 2004 |
| 6686835 |
Rear wheel steering angle control apparatus |
Feb. 3, 2004 |
| 6668967 |
Method of steering a vehicle |
Dec. 30, 2003 |
| 6619420 |
Rack and pinion steering gear with hydraulic yoke assembly |
Sep. 16, 2003 |
| 6499557 |
Power steering |
Dec. 31, 2002 |
| 6484841 |
Power steering |
Nov. 26, 2002 |
| 6390228 |
Hydraulic power steering apparatus for vehicle |
May. 21, 2002 |
| 6366842 |
Power steering apparatus |
Apr. 2, 2002 |
| 6064166 |
Power steering apparatus |
May. 16, 2000 |
| 5794736 |
Fluid control system for a vehicle power assisted steering mechanism |
Aug. 18, 1998 |
| 5771989 |
Power steering system |
Jun. 30, 1998 |
| 5769121 |
Rotary slide valve for power-assisted steering in motor vehicles |
Jun. 23, 1998 |
| 5740879 |
Power steering apparatus |
Apr. 21, 1998 |
| 5713429 |
Power steering system |
Feb. 3, 1998 |
| 5711394 |
Power steering apparatus with motor driven pump |
Jan. 27, 1998 |
| 5687810 |
Power assistance steering system for use in a vehicle |
Nov. 18, 1997 |
| 5634527 |
Speed responsive power steering |
Jun. 3, 1997 |
| 5627754 |
Method for controlling a front and rear wheel steering vehicle |
May. 6, 1997 |
| 5582264 |
Power assisted steering system, in particular, for motor vehicles |
Dec. 10, 1996 |
| 5577573 |
Hydraulic power steering apparatus |
Nov. 26, 1996 |
| 5564516 |
Clutched electric motor steering system |
Oct. 15, 1996 |
| 5538095 |
Power steering apparatus |
Jul. 23, 1996 |
| 5517899 |
Hydraulic servosystem with externally controllable setting assembly |
May. 21, 1996 |
| 5517096 |
Power steering system |
May. 14, 1996 |
| 5513821 |
Aircraft steering system and method for large aircraft having main landing gear steering during low taxi speed while nose gear is castored |
May. 7, 1996 |
| 5494127 |
Power steering system |
Feb. 27, 1996 |
| 5489006 |
System and apparatus for limiting vehicle turning radius |
Feb. 6, 1996 |
| 5485376 |
Steering wheel posture control system |
Jan. 16, 1996 |
| 5465805 |
Power steering system |
Nov. 14, 1995 |
| 5367235 |
Power steering device having electrically driven pump |
Nov. 22, 1994 |
| 5339917 |
Power steering device |
Aug. 23, 1994 |
| 5307895 |
Hydraulic reaction variable assist power steering control hydraulic "detent" |
May. 3, 1994 |
| 5297647 |
Variable assist power steering gear with hydraulic reaction controls |
Mar. 29, 1994 |
| 5293954 |
Power steering system |
Mar. 15, 1994 |
| 5291963 |
Power steering system |
Mar. 8, 1994 |
| 5207780 |
Hydraulic valve device for automotive power steering gear |
May. 4, 1993 |
| 5190119 |
Hydraulic power steering device responsive to speed of vehicle |
Mar. 2, 1993 |
| 5184693 |
Vehicle hydraulic power steering system |
Feb. 9, 1993 |
| 5168949 |
Steering force control system for power steering |
Dec. 8, 1992 |
| 5158149 |
Steering force control apparatus for power steering system |
Oct. 27, 1992 |
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