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:
Nov. 20, 2001
Filed:
Nov. 16, 1999
Applicant:
Inventors:
Thomas Sailer, Amherst, OH (US);
Kenneth M. Beligoy, Parma Heights, OH (US);
Assignee:
Crane Co., Elyria, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 4/900 ; F04B 2/300 ; F16K 1/500 ;
U.S. Cl.
CPC ...
F04B 4/900 ; F04B 2/300 ; F16K 1/500 ;
Abstract
A fuel pump includes an O-ring seal to provide sealing contact with a diaphragm seal between a valve housing and associated valve cover interface despite some loss of clamping load between such mating parts. Also, a molded O-ring type ladder seal is used to maintain seal integrity between the valve housing and associated pump housing interface despite some loss of clamping load therebetween. Machined O-ring grooves are desirably provided in opposite sides of the valve housing to accommodate the O-ring against the diaphragm seal and the molded O-ring type ladder seal against the pump housing.