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. 06, 1977
Filed:
Jan. 24, 1977
Applicant:
Inventors:
John R Coleman, Dayton, OH (US);
Dwight W McDaniel, Trotwood, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277205 ;
Abstract
The lip of a cup seal for use in a master cylinder incorporates a semi-torus of material extending axially outward from the outer peripheral end of the seal lip. The added material is positioned immediately adjacent, but slightly radially inward from, the sharp lip edge. This added material prevents the lip from hanging up on the edges of compensation ports which open into the master cylinder bore, particularly during initial installation.