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. 07, 1991
Filed:
Sep. 18, 1989
Applicant:
Inventor:
John F Whiteside, Franklin Park, IL (US);
Assignee:
Sloan Valve Company, Franklin Park, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251 40 ; 251 38 ; 251120 ; 251123 ;
Abstract
A refill ring for use in a diaphragm-type flush valve is mounted upon the guide member of the diaphragm assembly. The refill ring has an outer diameter approximating the inner diameter of the flush valve passage adjacent the diaphragm seat. The refill ring has a plurality of recesses formed about its periphery whereby closure of the diaphragm assembly upon its flush valve seat moves the refill ring within the flush valve passage, the exterior of the refill ring being in contact with the interior of the passage such that the flow of water past the refill ring is limited to the area of the refill ring peripheral recesses.