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:
Sep. 09, 1997
Filed:
Jul. 29, 1994
Applicant:
Inventor:
Calvin A Gongwer, Glendora, CA (US);
Assignee:
Innerspace Corporation, Covina, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 87 ; 277 59 ; 277135 ;
Abstract
A means of sealing a rotating shaft against high fluid pressure with low friction torques, low leakage and low wear. This accomplished by use of sealing assembly comprising a sliding and a floating seal assembly separated by a lubricant filled chamber. The sliding seal is exposed to the high pressure environment which is kept isolated from the drive means by the chamber. Thus, the high pressure environment leaks into the chamber rather than the environment of the drive means and the non-harmful lubricant leaks slowly into the drive means environment.