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:
Dec. 23, 1980
Filed:
Nov. 07, 1978
Applicant:
Inventors:
Richard W Angert, St. Louis, MO (US);
Stephen G Palmer, Webster Groves, MO (US);
Assignee:
Wagner Electric Corporation, Parsippany, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
60589 ; 60581 ;
Abstract
A master cylinder including a housing having a fluid reservoir and a cavity. A first piston is movable in the cavity. A sealing member is positioned for movement with the first piston. A fluid chamber is formed in the cavity ahead of the first piston. A second piston is movable within the first piston into and out of sealing engagement with the sealing member to close and open, respectively, a fluid path between the fluid reservoir and the fluid chamber.