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:
Jul. 13, 1976
Filed:
May. 12, 1975
Applicant:
Inventors:
Ray H Johnston, Greenfield, WI (US);
Bryon L Mather, Milwakee, WI (US);
Clark, James L, Whitefish Bay, WI (US);
Assignee:
Plastronics, Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
229 625 ; 128 / ; 128295 ; 1375253 ;
Abstract
An anti-reflux valve mounted at the inlet port to the fluid collection chamber of a fluid collection bag and having a thin flexible valve element which is retained for limited floating movement over the inlet port and which flexes to permit flow of fluid into the collection chamber and which is moved against a valve seat surface surrounding the inlet port in response to fluid pressure inside of the collection chamber to thus prevent reflux of such fluid.