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. 16, 1980
Filed:
Aug. 07, 1979
Applicant:
Inventor:
Samuel C Wilkinson, Chichester, GB;
Assignee:
Crane Packing Limited, Slough, GB;
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 84 ; 277-1 ; 277 92 ; 277121 ; 277144 ; 277190 ; 277165 ;
Abstract
An axially movable seal face member of a rotary mechanical face seal, for example for a ship's stern shaft, is sealed to its associated structure, and at the same time loaded axially, by the wedging action of a ring urged radially between two oppositely inclined annular surfaces on bodies associated with the member and the structure, either the ring or the surfaces or both being of resilient material. The ring could be a rubber O-ring and the surfaces could be two further O-rings. Alternatively the ring could be rigid, or the ring could be resilient but the other two surfaces rigid.