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:
Jun. 13, 1978
Filed:
May. 10, 1977
Applicant:
Inventors:
James P Morley, Arlington Heights, IL (US);
William J Woods, Bensenville, IL (US);
Assignee:
Chicago Rawhide Manufacturing Company, Elgin, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 92 ; 277165 ; 2771 / ; 277215 ; 305 11 ;
Abstract
An end face seal especially adapted for use in severe service environments such as for sealing track pins of crawler type tractors. The seal includes a primary annular seal, having a radially extending flange portion for contacting a mating surface in face sealing engagement and an axially extending flange portion, and a secondary annular sealing member positioned in use about the axial flange portion. The cross section of the secondary annular sealing member is generally parallelogram-shaped in an unstressed condition.