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Class Information
Number: 303/9.73
Name: Fluid-pressure and analogous brake systems > Multiple fluid-receiving devices > Multiple motors > Apportioning control > Having significant output feature
Description: Subject matter wherein the means for varying the fluid flow includes mean for importantly affecting the flow to a fluid pressure operated motor.










Sub-classes under this class:

Class Number Class Name Patents
303/9.74 Multiple outlets 31


Patents under this class:
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Patent Number Title Of Patent Date Issued
8352142 Brake control apparatus and brake control method Jan. 8, 2013
8285466 Airbrake reservoir lock system Oct. 9, 2012
6257680 Braking system for railroad car/semi-tractor combination Jul. 10, 2001
5438516 Integrated vehicle brake control device position sensor with precalibrated multiple sensor outputs Aug. 1, 1995
5344220 Anti-lock control system for motorcycles Sep. 6, 1994
5302007 Rear wheel braking force control method and an apparatus therefor Apr. 12, 1994
5217282 Device for controlled braking of a wheel train with temperature comparison Jun. 8, 1993
5147113 Proportioning brake pressure valve responsive to steering system hydraulic pressure Sep. 15, 1992
5116107 Pneumatic braking system for tractor and trailer May. 26, 1992
5082332 Load responsive brake regulator Jan. 21, 1992
5064252 Brake fluid pressure controller Nov. 12, 1991
4819998 Dual-circuit brake system Apr. 11, 1989
4813450 Fluid pressure control valve Mar. 21, 1989
4779933 Pressure regulating device, in particular, for pressure fluid-operable brake systems of automotive vehicles Oct. 25, 1988
4778222 Automotive anti-lock brake control system Oct. 18, 1988
4564244 Pressure control device Jan. 14, 1986
4542944 Multiple disk brake control Sep. 24, 1985
4491371 Hydraulic pressure control valve for automobile brake mechanism Jan. 1, 1985
4475339 Apparatus for controlling braking liquid pressure Oct. 9, 1984
4466671 Fluid pressure controlling device for vehicle braking system Aug. 21, 1984
4426117 Brake pressure control valve and a method for its assembly Jan. 17, 1984
4416490 Pressure control valve for a hydraulic brake system Nov. 22, 1983
4415209 An integral wheel brake cylinder and pressure regulating valve Nov. 15, 1983
4386807 Pressure regulating valve for hydraulic brake systems Jun. 7, 1983
4386808 Pressure control valve Jun. 7, 1983
4384745 Pressure reducer for hydraulic brake systems May. 24, 1983
4358163 Brake pressure modulating valve Nov. 9, 1982
4335922 Pressure control unit Jun. 22, 1982
4325407 Pressure control unit Apr. 20, 1982
4319786 Brake pressure control device of deceleration responsive type Mar. 16, 1982
4292883 Wheel cylinder Oct. 6, 1981
4280739 Pressure modulating valves Jul. 28, 1981
4265491 Master cylinder and sleeve for controlling a proportioning valve May. 5, 1981
4254997 Fluid pressure control device for vehicle braking systems Mar. 10, 1981
4221437 Brake proportioning apparatus Sep. 9, 1980
4219242 Braking correction device Aug. 26, 1980
4203628 Anti-brake-vibration type proportioning valve May. 20, 1980
4201055 Hydraulic master cylinder May. 6, 1980
4180294 Fluid pressure control valve for vehicle braking systems Dec. 25, 1979
4154260 Master cylinder having a proportioning and metering valve encapsulated in separate outlet ports May. 15, 1979
4142764 Hydraulic pressure control valve for use in a hydraulic brake system Mar. 6, 1979
4121872 Pressure control unit for vehicular hydraulic brake systems Oct. 24, 1978
4118077 Braking correction device Oct. 3, 1978
4113317 Brake pressure reducing control valve Sep. 12, 1978
4073542 Fluid pressure control device and motor vehicle braking system incorporating such device Feb. 14, 1978
4072361 Valve devices for use in liquid pressure braking systems of vehicles Feb. 7, 1978
4070067 Fluid pressure control device Jan. 24, 1978
4062597 Vehicle load sensing arrangements Dec. 13, 1977
4059174 Braking correction device Nov. 22, 1977
4057296 Brake control valve assembly for effecting increased rear braking action upon malfunction of the front system Nov. 8, 1977

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