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. 14, 2000
Filed:
Jun. 02, 1998
Applicant:
Inventor:
Michel Massicotte, Boucherville, CA;
Assignee:
Pratt & Whitney Canada Inc., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13753311 ; 13753313 ;
Abstract
A valve comprising a valve body defining a flow path, a seat upon which a closure member may rest for blocking an outlet port of the valve body, and a spacer removably mounted in the valve body to provide at least one arresting surface against which the closure member may abut when displaced in an open position by fluid pressure. The spacer prevent the closure member from frictionally contacting the inner surfaces of the valve body.