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:
Feb. 06, 2001
Filed:
Dec. 09, 1998
Applicant:
Inventors:
Joseph C. Parker, Otsego, MI (US);
Christopher D. McCoway, Portage, MI (US);
Assignee:
Flowserve Management Company, Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 1/534 ;
U.S. Cl.
CPC ...
F16J 1/534 ;
Abstract
A gas seal construction for use on a pump to create a seal between the relatively rotatable pump shaft and housing. A shroud structure is disposed in close surrounding relationship to the shaft axially between the seal and the pump chamber for causing solid particles in the pump liquid to be returned to the pumping chamber.