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:
Oct. 03, 2000
Filed:
Mar. 24, 1998
Applicant:
Inventor:
David G Vensland, Champlin, MN (US);
Assignee:
Hypro Corporation, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277516 ; 277510 ; 277511 ;
Abstract
An improved sealing cartridge for use in a reciprocating plunger pump which includes a low pressure seal, a vacuum seal, and an oil seal within a unitized cartridge assembly to facilitate servicing and/or replacing the various seals with minimal effort and which provides improved sealing characteristics to prevent the unwanted migration of oil, fluid, and air during both priming and normal operating conditions.