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:
May. 04, 1976
Filed:
Mar. 17, 1975
Applicant:
Inventor:
George W Kardos, Euclid, OH (US);
Assignee:
The Weatherhead Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137525 ;
Abstract
A vent check valve having a relatively flat configuration of its elements, being thereby adapted to utilize a local wall area of a housing to be vented as a supporting body and to provide a valve seat. The valve elements include an elastomeric flat diaphragm and a retainer for holding the diaphragm against the valve seat. These elements are disposed in respective counterbores formed in the wall body concentrically with the valve seat. The retainer has a spiderlike configuration with circumferential legs dimensioned to flex rearwardly in the associated counterbore upon installation to produce a self-locking wedge fit therein.