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:
Aug. 01, 1989
Filed:
May. 03, 1988
Richard Borowski, Palmyra, NY (US);
Garlock Inc., Palmyra, NY (US);
Abstract
A bearing isolator seal having a shaft seal assembly that includes a stator housing having an inner radially extending face with a pair of spaced concentric annular flanges of substantially frusto-conical shape extending from a larger diameter end that is fixed to the inner radially extending face to a smaller diameter free end, and a rotor having a peripherally extending radial flange that is fixed to a hub of the rotor and has a contact sealing surface that contacts the free end of the annular flanges of the stator housing. In accordance with a preferred embodiment, drain ports are provided at a radially inner side of the fixed end of a radially outermost one of the annular flanges of the stator housing, and radially extending grooves are provided in an end surface of a frusto-conical wall extending axially from the sealing face of the radial flange of rotor so as to cause lubricant to be propelled radially outwardly against the radially outermost annular flange of the stator housing, along which it is caused to flow to and through axially extending holes forming the drain ports under dynamic sealing conditions.