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Class Information
Number: 303/122.09
Name: Fluid-pressure and analogous brake systems > Speed-controlled > With failure responsive means > Pressure failure
Description: Speed control with failure response in which the faulty operation is due to loss of a compressed fluid.










Sub-classes under this class:

Class Number Class Name Patents
303/122.13 Auxiliary pressure failure 61
303/122.11 Detected via stroke sensor 45
303/122.15 Pneumatic 16
303/122.12 Pump failure detection 39
303/122.1 With warning 34


Patents under this class:
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Patent Number Title Of Patent Date Issued
8662602 Brake control apparatus Mar. 4, 2014
8548708 Brake system for a vehicle and method for operating a brake system for a vehicle Oct. 1, 2013
8494789 Method for monitoring the status of an energy reserve accumulator, particularly for an aircraft Jul. 23, 2013
8376476 Brake system in electric drive dump truck Feb. 19, 2013
8348351 Brake control device Jan. 8, 2013
8348352 Brake control apparatus and method Jan. 8, 2013
8167383 Brake control apparatus May. 1, 2012
8152244 Brake control device Apr. 10, 2012
8087732 Method and apparatus for detecting a circuit failure in a vehicle brake system Jan. 3, 2012
8075067 Brake system Dec. 13, 2011
7540572 Failure detecting apparatus Jun. 2, 2009
7517027 Hydraulic brake device Apr. 14, 2009
7488047 Brake system Feb. 10, 2009
7484815 Brake device of motorcycle Feb. 3, 2009
7393065 Redundant braking system Jul. 1, 2008
7337047 Vehicle behavior control device Feb. 26, 2008
7281684 Systems and methods for braking aircraft, including braking intermediate main gears and differential braking Oct. 16, 2007
7076347 Brake booster vacuum sensor diagnostic Jul. 11, 2006
6959607 Differential pressure sensor impulse line monitor Nov. 1, 2005
6932440 Automotive braking method and devices for carrying out said method Aug. 23, 2005
6896338 Hydraulic braking system featuring selectable increased pump flow May. 24, 2005
6871918 Method for the reliable operation of a brake booster system, brake booster system, and circuit therefor for implementing the method Mar. 29, 2005
6843537 High reliability pressure sensor Jan. 18, 2005
6837552 Hybrid brake system for a vehicle Jan. 4, 2005
6820946 Dual redundant active/active brake-by-wire architecture Nov. 23, 2004
6789857 Vehicle brake hydraulic pressure generator Sep. 14, 2004
6672687 Vehicle motion control device Jan. 6, 2004
6641231 Hydraulic brake apparatus for a vehicle Nov. 4, 2003
6598943 Back-up braking in vehicle braking systems Jul. 29, 2003
6557951 Brake system with hydraulic brake booster and corresponding method May. 6, 2003
6547048 Manual braking system with hydraulic brake booster Apr. 15, 2003
6542793 Pedal apparatus for vehicles and a vehicle equipped with the same Apr. 1, 2003
6513885 Dual redundant active/active brake-by-wire architecture Feb. 4, 2003
6505893 Vehicle brake system having two brake circuits Jan. 14, 2003
6430493 Vehicular brake control device Aug. 6, 2002
6425644 Braking pressure control apparatus having device for diagnosing manually operated hydraulic system Jul. 30, 2002
6412885 Brake system for vehicles Jul. 2, 2002
6398318 Method and device for monitoring a braking system contained in a vehicle Jun. 4, 2002
6394561 Brake system for vehicles with routine judgment of normal operation of pressure sensors May. 28, 2002
6389349 Method and apparatus for activating a pump of a braking system as a function of the pressure gradient May. 14, 2002
6354672 Braking system wherein brake cylinder is communicated with pedal-operated pressure source upon failure of pump-operated pressure source Mar. 12, 2002
6272417 Vehicle braking system Aug. 7, 2001
6254202 Vehicle braking apparatus Jul. 3, 2001
6244672 Method and apparatus for controlling a brake system Jun. 12, 2001
6203122 Electronic braking-force-distribution method Mar. 20, 2001
6161904 Method and device for controlling a braking system in open loop Dec. 19, 2000
6132012 Abnormal condition detecting apparatus and safety apparatus for hydraulic brake boosting system Oct. 17, 2000
6123397 Brake fluid pressure control device Sep. 26, 2000
6119059 Advanced warning device for monitoring the working conditions of hydraulic brakes system of motor vehicles Sep. 12, 2000
6092880 Integrated anti-skid and hydraulic booster braking control Jul. 25, 2000

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