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:
Feb. 13, 1996
Filed:
Dec. 19, 1994
Applicant:
Inventor:
John F Whiteside, Franklin Park, IL (US);
Assignee:
Sloan Valve Company, Franklin Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251 40 ; 251331 ; 251368 ; 9210 / ;
Abstract
A diaphragm for flush valves has a plurality of concentric reinforcing rings spaced closer together at the smaller diameters of the diaphragm than at the larger diameters. The reinforcing rings have a geometrically progressive spacing from the inside to the outside of the diaphragm so as to provide maximum hoop stress reduction with a minimum amount of material.