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Class Information
Number: 188/353
Name: Brakes > Operators > Fluid pressure > Road vehicle > With hydraulic lock
Description: Device including means to trap fluid in the brake system to hold the brakes applied.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7125085 |
Braking force retaining unit |
Oct. 24, 2006 |
| 6920964 |
Automated hydraulic brake |
Jul. 26, 2005 |
| 6659244 |
Integrated foot control valve actuator |
Dec. 9, 2003 |
| 6634721 |
Trailer locking device |
Oct. 21, 2003 |
| 6609586 |
Emergency brake lever |
Aug. 26, 2003 |
| 6478384 |
Hydraulic braking system |
Nov. 12, 2002 |
| 6415897 |
Brake fluid pressure retaining unit |
Jul. 9, 2002 |
| 6364436 |
Brake control device |
Apr. 2, 2002 |
| 6332654 |
Grade-holding brake system |
Dec. 25, 2001 |
| 6327931 |
Control device |
Dec. 11, 2001 |
| 6238012 |
Direct manipulating direct-graduated release cap for 26-type control valves |
May. 29, 2001 |
| 6056373 |
System for controlling the braking action in a motor vehicle |
May. 2, 2000 |
| 6009984 |
Method and apparatus for controlling the brake system of a vehicle |
Jan. 4, 2000 |
| 5988333 |
Brake fluid blocking vehicle theft prevention system |
Nov. 23, 1999 |
| 5979619 |
Method and system for preventing unwanted rolling away of a vehicle |
Nov. 9, 1999 |
| 5967628 |
Vehicular brake system |
Oct. 19, 1999 |
| 5747886 |
Pneumatic antitheft apparatus with alarm |
May. 5, 1998 |
| 5730507 |
Cable extension for brake lock |
Mar. 24, 1998 |
| 5722517 |
Brake apparatus of a motor vehicle equipped with automatic transmission |
Mar. 3, 1998 |
| 5688027 |
Control valve lock for a vehicle air brake system |
Nov. 18, 1997 |
| 5642788 |
Dismount braking device for a snowmobile |
Jul. 1, 1997 |
| 5641032 |
Anti-theft system for a vehicle |
Jun. 24, 1997 |
| 5630487 |
Method of installing electric motorized brake-lock system |
May. 20, 1997 |
| 5595258 |
Anti-car jacking system |
Jan. 21, 1997 |
| 5584538 |
Brake system with automatic braking mechanism |
Dec. 17, 1996 |
| 5570756 |
Anti-theft system for immobilizing a vehicle |
Nov. 5, 1996 |
| 5558123 |
Electrically controlled pressure-holding valve |
Sep. 24, 1996 |
| 5505528 |
Electric motorized brake-lock system |
Apr. 9, 1996 |
| 5484044 |
Device for the automatic control of vehicular brake systems on hills |
Jan. 16, 1996 |
| 5477939 |
Brake-engaging vehicle anti-theft system |
Dec. 26, 1995 |
| 5431487 |
Hydraulic brake lock with electric valve controller |
Jul. 11, 1995 |
| 5417143 |
Lock-out mechanism for empty/load changeover valve |
May. 23, 1995 |
| 5413197 |
Parking brake valve |
May. 9, 1995 |
| 5403078 |
Hydraulic braking systems for vehicles |
Apr. 4, 1995 |
| 5399002 |
Security brake system |
Mar. 21, 1995 |
| 5392876 |
Anti-theft method and device for automotive vehicles |
Feb. 28, 1995 |
| 5390768 |
Manually actuated hydraulic brake device for use with a vehicle surge brake system |
Feb. 21, 1995 |
| 5378929 |
Trailer anti-theft device |
Jan. 3, 1995 |
| 5375684 |
Brake release lock |
Dec. 27, 1994 |
| 5351781 |
Bulldog vehicle anti-theft system |
Oct. 4, 1994 |
| 5344221 |
Anti-theft method and apparatus for locking the brakes of a vehicle |
Sep. 6, 1994 |
| 5335758 |
Anti-theft vehicle brake supervising device |
Aug. 9, 1994 |
| 5316378 |
Brake fluid pressure control apparatus |
May. 31, 1994 |
| 5259665 |
Brake control apparatus |
Nov. 9, 1993 |
| 5163741 |
Device for hydraulic brake lock valve with a closing piston |
Nov. 17, 1992 |
| 5158343 |
Method of shortening the braking distance in critical driving situations by sensing brake pedal speed |
Oct. 27, 1992 |
| 5154493 |
Anti-theft brake lock |
Oct. 13, 1992 |
| 5145240 |
Air brake safety and anti-theft valve assembly |
Sep. 8, 1992 |
| 5078456 |
Brake pedal retaining vehicular anti-theft brake locking mechanism |
Jan. 7, 1992 |
| 4951776 |
Vehicle anti-theft system |
Aug. 28, 1990 |
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