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Class Information
Number: 180/442
Name: Motor vehicles > Steering gear > With fluid power assist > Hydraulic circuit
Description: Subject matter wherein a number of fluid logic devices are connected together forming a system for providing fluid to a power steering device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7624837 |
Hydraulic power steering apparatus |
Dec. 1, 2009 |
| 7596441 |
Power steering device |
Sep. 29, 2009 |
| 7584816 |
Power steering apparatus |
Sep. 8, 2009 |
| 7571040 |
Method and apparatus for controlling a magneto-rheological power steering coupling |
Aug. 4, 2009 |
| 7537079 |
Passively rephasing piston |
May. 26, 2009 |
| 7510044 |
Power steering apparatus |
Mar. 31, 2009 |
| 7506719 |
Self-synchronizing hydraulic system |
Mar. 24, 2009 |
| 7487856 |
Electrically actuated, hydraulic power steering system |
Feb. 10, 2009 |
| 7341125 |
Electric power steering apparatus |
Mar. 11, 2008 |
| 7322800 |
System and method of providing hydraulic pressure for mechanical work from an engine lubricating system |
Jan. 29, 2008 |
| 7306071 |
Hydraulic steering apparatus |
Dec. 11, 2007 |
| 7275617 |
Steering control device |
Oct. 2, 2007 |
| 7249608 |
Flow control for power steering |
Jul. 31, 2007 |
| 7225894 |
Power steering apparatus |
Jun. 5, 2007 |
| 7128182 |
Power steering system |
Oct. 31, 2006 |
| 7070019 |
Power assisted steering for all terrain vehicle |
Jul. 4, 2006 |
| 7044262 |
Power steering system |
May. 16, 2006 |
| 7036625 |
Integrated hydraulic control system |
May. 2, 2006 |
| 6988581 |
Fuel efficient power steering control system and method |
Jan. 24, 2006 |
| 6953102 |
Power steering system |
Oct. 11, 2005 |
| 6941207 |
Steering angular velocity detecting device |
Sep. 6, 2005 |
| 6929088 |
Power steering system |
Aug. 16, 2005 |
| 6904998 |
Device and method to ensure the steerability of an industrial truck |
Jun. 14, 2005 |
| 6889634 |
Method of providing hydraulic pressure for mechanical work from an engine lubricating system |
May. 10, 2005 |
| 6890123 |
Device for forming tight radius curbs and gutters with a paving machine |
May. 10, 2005 |
| 6886657 |
Power steering system |
May. 3, 2005 |
| 6880668 |
Power steering device |
Apr. 19, 2005 |
| 6851507 |
Power steering system |
Feb. 8, 2005 |
| 6820714 |
Hydraulically supported steering system |
Nov. 23, 2004 |
| 6668966 |
Power steering device |
Dec. 30, 2003 |
| 6655492 |
Steering system and method for steering a vehicle |
Dec. 2, 2003 |
| 6595314 |
Hydraulic steering system, for an articulated vehicle with wheel steering |
Jul. 22, 2003 |
| 6581717 |
Hydraulic steering arrangement |
Jun. 24, 2003 |
| 6568500 |
Steering system shudder control |
May. 27, 2003 |
| 6568499 |
Power steering system for vehicles |
May. 27, 2003 |
| 6550566 |
Phase maintaining control for a hydraulic steering system |
Apr. 22, 2003 |
| 6520278 |
Hydraulic power steering device |
Feb. 18, 2003 |
| 6513618 |
Power steering system |
Feb. 4, 2003 |
| 6505701 |
Steering system for a vehicle |
Jan. 14, 2003 |
| 6466848 |
Motor vehicle steering angle detector and power steering system employing the same |
Oct. 15, 2002 |
| 6450286 |
Rack and pinion power steering system with variable damping characteristics |
Sep. 17, 2002 |
| 6419042 |
Integrated electric power hydraulic steering system |
Jul. 16, 2002 |
| 6408977 |
Hydraulic steering system for a vehicle, especially for a mobile working machine |
Jun. 25, 2002 |
| 6405824 |
Hydraulic steering arrangement |
Jun. 18, 2002 |
| 6278922 |
Device for controlling the steering angle of a vehicle |
Aug. 21, 2001 |
| 6236178 |
Method for limiting the hydraulic maximum pressure of a power-assisted steering system |
May. 22, 2001 |
| 6216806 |
Supplement steering system |
Apr. 17, 2001 |
| 6216815 |
Power steering apparatus |
Apr. 17, 2001 |
| 6213247 |
Hydraulic steering device and method for steering a vehicle |
Apr. 10, 2001 |
| 6208923 |
Fault-tolerant electromechanical steer-by-wire steering actuator |
Mar. 27, 2001 |
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