The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2001
Filed:
Sep. 30, 1999
Applicant:
Inventors:
Charles E. Eberling, Wellington, OH (US);
Andrew Marsh, Elyria, OH (US);
William P. Amato, Avon, OH (US);
Assignee:
AlliedSignal Truck Brake System, Co., Elyria, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 1/322 ;
U.S. Cl.
CPC ...
B60T 1/322 ;
Abstract
A double check valve is integrally located in a spring brake chamber to reduce plumbing associated with a pneumatic brake system. Anti-compounding is provided by virtue of a bias pressure of approximately twenty to thirty psi between a pressure chamber of a service actuator and an operating chamber of a parking/emergency actuator. Likewise, vehicle roll-back is addressed since the transition from a service application to a park application assures that the service brakes are sufficiently applied until the spring brake becomes operative.