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, 1982
Filed:
Jul. 30, 1980
Charles S Allen, River Forest, IL (US);
Charles C Allen, Oak Brook, IL (US);
Frederic Lissau, Chicago, IL (US);
Sloan Valve Company, Franklin Park, IL (US);
Abstract
A diaphragm for a flush valve is made of molded rubber with a plastic insert for strengthening the diaphragm. The insert includes reinforcing means located at the points where the diaphragm is attached to the valve parts. There is also a plurality of spaced, rigid sections placed between the points of attachment. Connecting means are provided for connecting the reinforcing means and the rigid sections together. The connecting means is arranged to permit flexibility of the diaphragm in two planes. Thus, the diaphragm is permitted to flex both in the plane of the diaphragm and perpendicular to the diaphragm.