Air-operated brake actuator with control valve

Details Air-operated brake actuator with control valve Air-operated brake actuator with control valve

2006-10-17

2006-10-17

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

Relatively movable working members

First working member moves second coaxial working member...

C092S082000

Reexamination Certificate

active

07121191

ABSTRACT:
An air-operated brake actuator system of a vehicle comprises a spring brake actuator and a service brake actuator, the spring brake actuator including a sealed housing with a spring chamber and a pressure chamber, and a hollow actuator rod disposed in the spring brake actuator and axially moveable for applying a parking brake, the service brake actuator including a service pressure chamber for applying a service brake, in which a control valve of the brake actuator system includes a valve body placeable within the hollow actuator rod, the valve body including an opening formed therein for allowing fluid communication between the spring chamber of the spring brake actuator and the service pressure chamber of the service brake actuator through the hollow actuator rod, the control valve including a membrane formed of an elastic material and having a breathing hole formed there-through, the membrane positioned within the opening of the valve body and configured to seal the opening except the breathing hole when the membrane is not subject to a fluid pressure beyond a threshold level.

REFERENCES:
patent: 5361877 (1994-11-01), Graham
patent: 5372059 (1994-12-01), Pierce et al.
patent: 5671654 (1997-09-01), Plantan
patent: 5722311 (1998-03-01), Pierce et al.
patent: 5937733 (1999-08-01), Stojic
patent: 6029447 (2000-02-01), Stojic et al.
patent: 6588314 (2003-07-01), Stojic

Affiliated with

Also associated with

Rating

Air-operated brake actuator with control valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-operated brake actuator with control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-operated brake actuator with control valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717902