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:
Oct. 25, 1988
Filed:
May. 11, 1987
Applicant:
Inventor:
Eugene Novosad, Arlington Heights, IL (US);
Assignee:
John Crane-Houdaille. Inc., Morton Grove, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 / ; 277 22 ; 277 26 ; 277815 ; 277 92 ; 277 88 ;
Abstract
An improved drive for a banded sealing ring or washer in a rotary mechanical seal. The washer, usually a ceramic washer, is provided with an annular band surrounding its outer periphery which includes an outwardly extending flange. The seal includes a sleeve mounted on a rotatable shaft of a pump, which houses the washer in coaxial relation. It further includes a flange extending radially, which defines means in contact with the band of the washer, such that driving engagement is effected between the sleeve flange and the washer band and the washer is caused to rotate with the sleeve.