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. 17, 2001
Filed:
May. 30, 2000
Charles S. Allen, Kenilworth, IL (US);
Sloan Valve Company, Franklin Park, IL (US);
Abstract
A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets includes a body with an inlet and an outlet and there is a valve seat therebetween and a valve member movable to a closing position on the valve seat. The valve member includes a diaphragm which is peripherally attached to the body. There is a pressure chamber above the diaphragm for holding the valve member on its valve seat and there is a filter and a bypass orifice connecting the inlet and the pressure chamber. There is a downwardly-facing peripheral recess on the underneath side of the diaphragm, which recess is located generally intermediate the diaphragm outer periphery and the valve seat. A bypass orifice is formed in the diaphragm in alignment with and communicating with the recess. There is a filter ring positioned within the recess and in fluid communication with the water inlet. The filter ring has a multitude of small passages therein which connect the inlet and the bypass orifice.