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:
Mar. 18, 2003
Filed:
Jun. 08, 2001
Applicant:
Inventor:
Cleo D. Mathis, San Clemente, CA (US);
Assignee:
Sta-Rite Industries, Inc., Delavan, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 2/912 ;
U.S. Cl.
CPC ...
F04D 2/912 ;
Abstract
A double-seal/oil-reservoir system for motor/pump assembly includes first seal (S ) and a second seal (S ) of a carbon/ceramic ring type that are axially spaced from one another along a drive shaft ( ). A containment volume “V” is defined between the first and second seals (S and S ) in which an oil or oil-like fluid is contained to prevent seepage or weepage of the fluid circulated by the pump.