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:
Dec. 29, 2009
Filed:
Oct. 03, 2008
Applicant:
Robert H. Feldmeier, Fayetteville, NY (US);
Inventor:
Robert H. Feldmeier, Fayetteville, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sanitary diaphragm valve has a valve body formed of an upper plate and a lower plate, with a flexible resilient diaphragm and a spacer between them. The margin of the diaphragm rests on a peripheral step formed in the lower plate to create a positive space between the lower plate and the edges of the diaphragm. A piston within a cylinder in the upper plate can descend to compress the diaphragm against a valve port to close the valve. The pressure of the liquid product can raise the diaphragm and the piston when control pressure is relieved from the piston.