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. 20, 1979
Filed:
Dec. 30, 1977
Applicant:
Inventor:
Lars-Erik Nyman, Enebyberg, SE;
Assignee:
ITT Industries, Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277-9 ; 277 41 ; 277 65 ; 277 / ; 2771 / ; 277136 ;
Abstract
The rotatable seal ring of a mechanical seal is attached to a plain shaft by a grip ring and a housing that includes a disc spring. The rotatable seal ring is pressed against the non-rotatable ring by the disc spring, the compression of which is uniquely controlled by the depth of a recess formed in the housing to receive the grip ring.