Spring applied/pressure release emergency brake actuator

Details Spring applied/pressure release emergency brake actuator Spring applied/pressure release emergency brake actuator

1990-02-08

1991-07-23

Butler, Douglas C.

Brakes

Operators

Spring

92130A, 303 976, F16D 6524, B60T 1322

Patent

active

050335928

ABSTRACT:
An apparatus for actuating an emergency brake on loss of fluid pressure in a brake system, the apparatus including a housing for one or more compression springs, a piston and cylinder assembly mounted in the housing and being operatively connected to the fluid system and to the emergency brake to release the brake on sensing brake system fluid pressure and to apply the brake on loss of system pressure in the brake system, the spring or springs being permanently housed in the housing in a precompressed condition so that the piston and cylinder assembly can be removed from the housing without releasing the springs.

REFERENCES:
patent: 2854954 (1958-10-01), Howze
patent: 2992630 (1961-07-01), Leighton et al.
patent: 3187642 (1965-06-01), Cruse
patent: 3508469 (1970-04-01), Williams
patent: 3547234 (1970-12-01), Cummins et al.
patent: 3599760 (1971-08-01), Moss
patent: 3712181 (1973-01-01), Swander, Jr. et al.
patent: 3926094 (1975-12-01), Kurichh et al.
patent: 3977308 (1976-08-01), Swander, Jr. et al.

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