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Class Information
Number: 188/356
Name: Brakes > Operators > Fluid pressure > Road vehicle > With nonmanual fluid-power source > Vacuum power
Description: Device wherein the non-manual power source is of the vacuum or sub-atmospheric pressure type.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7255408 |
Vacuum booster |
Aug. 14, 2007 |
| 7040718 |
Calibration process for a servomotor |
May. 9, 2006 |
| 7014276 |
Vacuum booster |
Mar. 21, 2006 |
| 6874602 |
Braking apparatus for a vehicle |
Apr. 5, 2005 |
| 6872165 |
Parking brake system for a gearbox of a motor vehicle |
Mar. 29, 2005 |
| 6739676 |
Braking system having vacuum booster whose boosting ratio is lowered at fixed transition point at which wheel cylinder pressure increase is initiated |
May. 25, 2004 |
| 6612660 |
Vacuum booster apparatus and a brake apparatus |
Sep. 2, 2003 |
| 6554374 |
Tandem brake booster for automobiles |
Apr. 29, 2003 |
| 6513883 |
Hydraulic brake for a vehicle |
Feb. 4, 2003 |
| 6412883 |
Vacuum booster apparatus and a brake apparatus |
Jul. 2, 2002 |
| 6412881 |
Braking system having master cylinder piston receiving booster output and rear chamber fluid pressure from selectively activated pressure increasing device |
Jul. 2, 2002 |
| 6349995 |
Brake control system for a vehicle |
Feb. 26, 2002 |
| 6347842 |
Braking hydraulic pressure source apparatus wherein assisting pressure is electrically controlled to establish predetermined overall boosting ratio |
Feb. 19, 2002 |
| 6305757 |
Brake booster negative pressure controller |
Oct. 23, 2001 |
| RE37373 |
Vacuum servo apparatus |
Sep. 18, 2001 |
| 6273526 |
Fluid pressure booster and brake system using the same |
Aug. 14, 2001 |
| 6209968 |
Braking system for motor vehicles |
Apr. 3, 2001 |
| 6203118 |
Braking system |
Mar. 20, 2001 |
| 6129423 |
Brake force control apparatus |
Oct. 10, 2000 |
| 6098780 |
Tracking, propulsion and braking system for bridge tripper/hopper car |
Aug. 8, 2000 |
| 6062656 |
Brake system for motor vehicles |
May. 16, 2000 |
| 6039411 |
Brake control system for a vehicle |
Mar. 21, 2000 |
| 6027182 |
Brake force control apparatus for properly performing both an ABS function and a BA function |
Feb. 22, 2000 |
| 6006648 |
Method of operating a pneumatic brake servo-unit |
Dec. 28, 1999 |
| 5979292 |
Method of operating a pneumatic brake booster |
Nov. 9, 1999 |
| 5979282 |
Cutter-infeed apparatus for cutting installations for tapes, in particular magnetic tapes |
Nov. 9, 1999 |
| 5971500 |
Electronically adjustable brake system for motor vehicles |
Oct. 26, 1999 |
| 5967628 |
Vehicular brake system |
Oct. 19, 1999 |
| 5961189 |
Brake system for automotive vehicles with pneumatic brake power booster |
Oct. 5, 1999 |
| 5951119 |
Braking system for motor vehicles |
Sep. 14, 1999 |
| 5951117 |
Boosted braking system with automatically-controlled reaction |
Sep. 14, 1999 |
| 5890775 |
Vacuum servo unit for a vehicle braking system |
Apr. 6, 1999 |
| 5855420 |
Electronically controlled brake booster and method of operation thereof |
Jan. 5, 1999 |
| 5848827 |
Braking assistance pneumatic servomotor with improved valve |
Dec. 15, 1998 |
| 5845558 |
Vacuum servo unit for a vehicle braking system |
Dec. 8, 1998 |
| 5823637 |
Universal vacuum pump apparatus and method |
Oct. 20, 1998 |
| 5746057 |
Electronic control type brake booster for vehicle |
May. 5, 1998 |
| 5735581 |
Valve assembly for controlling a pneumatic brake booster with an electromagnetic actuation means |
Apr. 7, 1998 |
| 5713638 |
Brake system with a power brake device |
Feb. 3, 1998 |
| 5709437 |
Vehicle braking system |
Jan. 20, 1998 |
| 5704455 |
Automatic brake booster |
Jan. 6, 1998 |
| 5683147 |
Vacuum servo apparatus |
Nov. 4, 1997 |
| 5658055 |
Vehicle brake system having an electronically controlled booster |
Aug. 19, 1997 |
| 5647462 |
Vacuum servo unit for a vehicle braking system |
Jul. 15, 1997 |
| 5645145 |
Brake booster |
Jul. 8, 1997 |
| 5607207 |
Hydraulic braking pressure control apparatus for automotive vehicle |
Mar. 4, 1997 |
| 5590937 |
Electronically controlled vehicle braking system and method for operating same |
Jan. 7, 1997 |
| 5518305 |
Vacuum brake power booster |
May. 21, 1996 |
| 5513906 |
Method of controlling sensitivity of vehicle automatic braking process |
May. 7, 1996 |
| 5484193 |
Single channel best effort anti-lock brake system |
Jan. 16, 1996 |
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