About 24 results
https://drivepatents.com/patents/1078258 · 27 Apr 2005
The present invention is predicated upon the use of an apparatus that is engageable with a hand brake assembly (20) which will automatically apply at least one brake means secured to a railway vehicle with such hand brake assembly. The apparatus of the inv...
https://drivepatents.com/patents/1082637 · 10 Nov 2004
An apparatus (10) engageable with a hand brake assembly (20) for automatically applying at least one brake device secured to a railway vehicle with such hand brake assembly (20). The apparatus includes an operating mechanism (30) having at least a portion ...
https://drivepatents.com/patents/1084623 · 25 Aug 2004
In a preferred embodiment, a calibration system for a valve pressure control system for a control valve comprises a microprocessor (102), a brake cylinder pressure detector (108) and a brakes full service detector (104). For testing purposes, a control val...
https://drivepatents.com/patents/1085640 · 14 Jul 2004
The application solenoid valve (16) is connected with pilot solenoid valve (12) so that operation of valve (16) is stopped by a brake cylinder based on control signals. The release pilot solenoid valve (14) and release solenoid valve (18) are connected wit...
https://drivepatents.com/patents/1085639 · 14 Jul 2004
A wheel slip release relay (44) allows application of the load compensation exclusive control over the application and release valves (26,42) by disconnecting and connecting the controller from and to the application and release valves in response to emerg...
https://drivepatents.com/patents/1085659 · 14 Jul 2004
The time reset safety timer circuit (10) eliminates approximately half of the external interfaces of the prior art safety timers. The prior art safety timers depend on vehicle axle speeds, brake indications, and/or trainline signals to initiate a safety ti...
https://drivepatents.com/patents/1085939 · 30 Jun 2004
A dual feedback, high accuracy pressure control means (10) for railcar braking systems having an electronic control module (14). A transducer (12) is electronically connected to the control module (14) for transmitting a pressure signal to the control modu...
https://drivepatents.com/patents/1089278 · 3 Mar 2004
A lock latch mechanism (80) disposed within a powered locking device of a transit vehicle door system for maintaining a lock lever (76) in an unlock position without the aid of the lock actuator. The lock latch mechanism (80) includes a lock latch lever (9...
https://drivepatents.com/patents/1098174 · 26 Feb 2003
An automatic application hand brake mechanism is provided for automatically applying at least one brake member secured to a railway vehicle with the hand brake assembly. The mechanism comprises an operating member having at least one ratchet (112). The at ...
https://drivepatents.com/patents/1098734 · 29 Jan 2003
In combination with a railway locomotive brake valve (10) having at least one exhaust valve assembly (12), at least one spring housing (14) and at least one range spring (16), the improvement comprising a device (18) for providing enhanced damping capabili...