Brakes – Operators – Fluid pressure
Patent
1982-09-27
1985-01-22
Butler, Douglas C.
Brakes
Operators
Fluid pressure
60591, 60593, 92129, 188196A, 188198, B60T 1110
Patent
active
044946317
ABSTRACT:
A combination air brake cylinder and hydraulic slack adjuster for a railroad car brake system includes an air operated piston positioned within a housing. There is an air port in the housing in communication with the air piston and there is a return spring in the housing operable upon the air piston. The housing includes a fluid outlet port and a fluid piston and valve arrangement within the housing connected to the air piston and responsive to brake application movement thereof to supply a brake shoe application fluid pressure at said outlet. A fluid reservoir is associated wtih the fluid piston and valve arrangement and has check valve controlled connecting passages thereto for adjusting slack in the brake rigging during brake application functions.
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patent: 4012080 (1977-03-01), Engle
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patent: 4316529 (1982-02-01), Yanagawa et al.
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patent: 4356897 (1982-11-01), Urban
patent: 4418799 (1983-12-01), Hart et al.
Butler Douglas C.
Sloan Valve Company
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