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Class Information
Number: 114/150
Name: Ships > Steering mechanism > Fluid pressure
Description: Steering mechanism in which fluid-pressure is used to control the rudder, tiller, or steering wheel, etc., or to react upon the water through which the vessel moves.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7347753 |
Hydraulic actuation system for a marine propulsion device |
Mar. 25, 2008 |
| 7325507 |
Tiller operated marine steering system |
Feb. 5, 2008 |
| 7320629 |
Steering device for small watercraft |
Jan. 22, 2008 |
| 7318386 |
Power assist steering apparatus and method responsive to volume flow of fluid |
Jan. 15, 2008 |
| 7159525 |
Hydraulic steering arrangement |
Jan. 9, 2007 |
| 7156708 |
Marine steering assembly with integrated pivot pin |
Jan. 2, 2007 |
| 7147525 |
Hydraulic steering apparatus for an outboard engine |
Dec. 12, 2006 |
| 7131386 |
Marine propulsion system with pressure compensated hydraulic supply capability |
Nov. 7, 2006 |
| 6821168 |
Power steering system for a marine vessel |
Nov. 23, 2004 |
| 6820567 |
Steering device |
Nov. 23, 2004 |
| 6796856 |
Steering system |
Sep. 28, 2004 |
| 6790110 |
Marine power steering system |
Sep. 14, 2004 |
| 6712654 |
Turning of a propulsion unit |
Mar. 30, 2004 |
| 6651574 |
Spool valve |
Nov. 25, 2003 |
| 6604480 |
Fast current rescue boat |
Aug. 12, 2003 |
| 6598553 |
Power assist marine steering system |
Jul. 29, 2003 |
| 6564739 |
Marine steering system having dual hydraulic and electronic output |
May. 20, 2003 |
| 6524147 |
Power assist marine steering system |
Feb. 25, 2003 |
| 6500037 |
Servo steering mechanism for boats for example |
Dec. 31, 2002 |
| 6471556 |
Tilting mechanism for outboard motor |
Oct. 29, 2002 |
| 6454620 |
Integrated external hydraulic trimming and steering system for an extended sterndrive transom assembly |
Sep. 24, 2002 |
| 6416370 |
Watercraft hydraulic apparatus |
Jul. 9, 2002 |
| 6276977 |
Integrated hydraulic steering actuator |
Aug. 21, 2001 |
| 6261139 |
Steering control apparatus for inboard-outboard drive |
Jul. 17, 2001 |
| 6230642 |
Autopilot-based steering and maneuvering system for boats |
May. 15, 2001 |
| 6199498 |
Steering mechanism |
Mar. 13, 2001 |
| 6138596 |
Damped steering mechanism for a watercraft |
Oct. 31, 2000 |
| 5997370 |
Outboard hydraulic steering assembly with reduced support bracket rotation |
Dec. 7, 1999 |
| 5996523 |
Hydraulic oscillator |
Dec. 7, 1999 |
| 5934956 |
Mounting arrangement for engine steering cylinder |
Aug. 10, 1999 |
| 5928041 |
Rotary valve actuated hydraulic steering system |
Jul. 27, 1999 |
| 5924379 |
Actuating mechanism with improved mounting structure |
Jul. 20, 1999 |
| 5915322 |
Self-steering system for sailboats |
Jun. 29, 1999 |
| 5904602 |
Auxiliary motor directional control system |
May. 18, 1999 |
| 5857488 |
Multi-mode selector valve assembly for marine steering system |
Jan. 12, 1999 |
| 5782195 |
Braking/reversing rudder for marine vessel |
Jul. 21, 1998 |
| 5702275 |
Steering mechanism |
Dec. 30, 1997 |
| 5676081 |
Tilting helm for marine vessel |
Oct. 14, 1997 |
| 5658177 |
Mounting arrangement for engine steering cylinder |
Aug. 19, 1997 |
| 5643022 |
Steering cylinder with engine-clearance features and method for making the cylinder |
Jul. 1, 1997 |
| 5643021 |
Trim system for outboard motor |
Jul. 1, 1997 |
| 5632217 |
Automatic steering apparatus and method for small watercraft |
May. 27, 1997 |
| 5628268 |
Rapson-slide steering mechanism |
May. 13, 1997 |
| 5605109 |
Power steering system |
Feb. 25, 1997 |
| 5603279 |
Power steering assist |
Feb. 18, 1997 |
| 5601463 |
Fluid actuated cylinder with outboard motor mounting |
Feb. 11, 1997 |
| 5542864 |
Steering cylinder for outboard engines |
Aug. 6, 1996 |
| 5522745 |
Boat propulsion unit |
Jun. 4, 1996 |
| 5509369 |
Small watercraft automatic steering apparatus and method |
Apr. 23, 1996 |
| 5505641 |
Power tilt, power steering device |
Apr. 9, 1996 |
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