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:
Feb. 07, 1984
Filed:
Mar. 22, 1982
Applicant:
Inventor:
Norbert Spielmann, Ebern, DE;
Assignee:
FAG Kugelfischer Georg Schafer & Co., Schweinfurt, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
60588 ; 92169 ;
Abstract
A brake or clutch master cylinder has a slightly stepped bore with angularly equispaced grooves extending from the large diameter step into the small diameter step across the seal of the piston in its rest position. The fluid reservoir communicates with a groove of the large diameter step via a radial port.