System and method for providing dry filtered air to a brake...

Details System and method for providing dry filtered air to a brake... System and method for providing dry filtered air to a brake...

2005-06-21

2005-06-21

Look, Edward K. (Department: 3745)

Expansible chamber devices

Relatively movable working members

First working member moves second coaxial working member...

C092S082000

Reexamination Certificate

active

06907818

ABSTRACT:
A spring brake actuator that utilizes a valve for providing compressed air to a spring cavity, the air having previously been dried and filtered so as to prevent contaminates and moisture from corroding and/or damaging the spring in the spring cavity, the valve being actuated by a difference in pressure from one side of the valve to the other.

REFERENCES:
patent: 3710692 (1973-01-01), Valentine
patent: 3736842 (1973-06-01), Valentine
patent: 3800668 (1974-04-01), Valentine
patent: 4889037 (1989-12-01), Goral et al.
patent: 4890540 (1990-01-01), Mullins
patent: 5372059 (1994-12-01), Pierce et al.
patent: 5584538 (1996-12-01), Takasaki
patent: 5937733 (1999-08-01), Stojic
patent: 6006651 (1999-12-01), Pierce et al.
patent: 6264291 (2001-07-01), Eberling et al.
patent: 6588314 (2003-07-01), Stojic

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