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:
Mar. 18, 1980
Filed:
Jul. 10, 1978
Applicant:
Inventor:
Erich Reinecke, Beinhorn, DE;
Assignee:
WABCO Westinghouse GmbH, Hanover, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 50 ; 251321 ;
Abstract
A brake valve device including a valve-actuating piston for contacting and effecting operation of a valve member, the valve-actuating piston being provided with a stepped bore in which a spring-biased spring seat member is engaged by and axially slidably movable by a push rod for actuating the valve device. The peripheral surface of a guide flange formed on the spring seat member for stabilizing axial movement thereof in the stepped bore, is spherically-shaped for permitting such axial movement without hang-up or jamming in the bore.