Braking power transmitter
Patent 4818036 Issued on April 4, 1989. Estimated Expiration Date: 
April 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorAssigneeApplicationNo. 07/033442 filed on 04/01/1987US Classes:303/50, MOTORMAN'S VALVES188/156, Electric and mechanical188/158, Electric188/3R, Train267/166, COIL303/15, Fluid and electric303/155, Braking pressure demand or braking force desire303/20, ELECTRIC CONTROL303/3, Fluid pressure and electric338/108, Pedal- or treadle-operated338/153, Contact operated by pedal or treadle74/512, Foot operated74/514SignalExaminersPrimary: Butler, Douglas C.Attorney, Agent or FirmInternational ClassesB60T 13/66 (20060101)B60T 7/04 (20060101) Foreign Application Priority Data1986-04-09 DEAbstractThe present invention is a braking value transmitter with a pedal to modulate the braking pressure. The pedal is braced against a spring. The force exerted by the pedal or the position of the pedal is sensed by an electronic sensor. The output signal of the sensor is fed to an electronic system, which transforms the approximately linear characteristic of the sensor into a progressive characteristic.Other References
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