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Class Information
Number: 303/16
Name: Fluid-pressure and analogous brake systems > Multiple control > Fluid and electric > Automatic electric
Description: The electric valves are operated to reduce the pressure in the control-pipe, and thus give an automatic operation.

Sub-classes under this class:

Class Number Class Name Patents
303/17 Electric impulse 7

Patents under this class:

Patent Number Title Of Patent Date Issued
8560198 Train braking device and train braking method Oct. 15, 2013
8297297 Compressed air supply system for a commercial vehicle and method for operating a compressed air supply system Oct. 30, 2012
8251461 Brake control device for two-wheeled motor vehicle Aug. 28, 2012
8220877 Electric parking brake system Jul. 17, 2012
8000870 Active brake pulsation control Aug. 16, 2011
7949441 System and method for selectively limiting tractive effort to facilitate train control May. 24, 2011
7744166 Method for operating to brake gear of a vehicle Jun. 29, 2010
7559613 Automatic brake control unit Jul. 14, 2009
7530649 Brake apparatus for a vehicle May. 12, 2009
7011377 Electronic control unit for automatically activating a parking brake and method for preventing the automatic activation of the parking brake in motor vehicles Mar. 14, 2006
6937925 Slow speed consist control by independently controlling each locomotive Aug. 30, 2005
6922619 System and method for selectively limiting tractive effort to facilitate train control Jul. 26, 2005
6802574 Electronic control unit and method for the automatic activation of the parking brake in motor vehicles Oct. 12, 2004
6746087 Electronic equalizing reservoir controller with pneumatic penalty override Jun. 8, 2004
6435624 Railway locomotive brake controller Aug. 20, 2002
6340211 Dual station air brake control Jan. 22, 2002
6302495 Railway car braking system including piezoelectric pilot valve and associated methods Oct. 16, 2001
6126246 Towed vehicle braking system Oct. 3, 2000
6035250 Locomotive brake control unit with dynamic brake interlock Mar. 7, 2000
5984427 Method and apparatus for controlling electro-pneumatic brakes on trains using an existing locomotive electronic air brake Nov. 16, 1999
5927823 Backup control technique for 20 pipe braking system Jul. 27, 1999
5810107 One pedal safety driving system Sep. 22, 1998
5808370 Simplified dual connection EP brake system Sep. 15, 1998
5630565 Locomotive M. U. trainline/jumper for EP brake application May. 20, 1997
5415465 Apparatus and method of bailing off the brake cylinder pressure on a locomotive consist May. 16, 1995
5358315 Microprocessor-based electropneumatic locomotive brake control system having pneumatic backup brake control Oct. 25, 1994
5328251 Electronic braking system Jul. 12, 1994
5286096 Arrangement for enhancing the bail-off function of brake cylinder pressures on a railroad locomotive Feb. 15, 1994
5192118 Electro-pneumatic locomotive brake control system Mar. 9, 1993
5104203 Arrangement for emulating a J-type relay air valve useable in a railway braking system Apr. 14, 1992
4835970 Pneumatic power brake system Jun. 6, 1989
4812777 Manually/electrically operated brake system Mar. 14, 1989
4744607 Brake control system for combining electric and fluid pressure brakes May. 17, 1988
4735463 Transit vehicle friction brake deceleration control system Apr. 5, 1988
4679863 Emergency brake command read-convert device for railway train having cars with pneumatic and cars with electrical brake control Jul. 14, 1987
4536039 Vehicle braking apparatus and method Aug. 20, 1985
4434971 Drilling rig drawworks hook load overspeed preventing system Mar. 6, 1984
4334711 System for automatically delaying application of a snow brake for a railway vehicle Jun. 15, 1982
4264110 Train braking apparatus Apr. 28, 1981
4181369 Pneumatic/electro-pneumatic brake control system with interlock circuitry for push/pull train operation Jan. 1, 1980
4146108 Braking system responsive to abrupt release of accelerator pedal Mar. 27, 1979
4068899 Braking systems Jan. 17, 1978
3985210 Automatically engaged emergency parking brake Oct. 12, 1976

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