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:
May. 31, 1977
Filed:
Aug. 20, 1976
Raymond Metcalfe, Chalk River, CA;
Atomic Energy of Canada Limited, Ottawa, CA;
Abstract
A rotary shaft face seal in which a rotor on the shaft has an annular seal face which is coaxial with the axis of rotation of the shaft while a stator is eccentrically mounted, relative to the shaft axis of rotation, on an eccentric tubular extension of a partition. The stator is slidable on the tubular extension and has an annular-shaped seal face which is also eccentric to the shaft axis of rotation. Compression springs urge the stator to push the annular-shaped seal face against the seal face of the rotor while pressurized fluid is forced by these seal faces. As the rotor rotates the eccentric, annular-shaped seal face of the stator progressively uncovers portions of the seal face, on the rotor, which were previously covered thereby allowing these portions to cool and thereby promoting lubrication of the relatively sliding seal faces.