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:
Sep. 09, 2014
Filed:
Mar. 03, 2011
Applicants:
Frank A. Stauder, London, CA;
Xan Vy Du, London, CA;
Robert Kropiniewicz, London, CA;
Inventors:
Assignee:
Masco Canada Limited, London, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D 3/04 (2006.01); F16K 21/12 (2006.01); E03C 1/10 (2006.01);
U.S. Cl.
CPC ...
E03D 3/04 (2013.01); E03C 1/106 (2013.01);
Abstract
A flush valve has a valve body having an inlet and an outlet, a piston disposed in the valve body between the inlet and the outlet, a cartridge disposed in the outlet and a plurality of check valves disposed serially within the cartridge for preventing backflow through the outlet and wherein vacuum effects are minimized.