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:
Jun. 07, 2016
Filed:
Jul. 17, 2013
Applicant:
Fluidmaster, Inc., San Juan Capistrano, CA (US);
Inventors:
Assignee:
Fluidmaster, Inc., San Juan Capistrano, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D 1/14 (2006.01);
U.S. Cl.
CPC ...
E03D 1/142 (2013.01);
Abstract
A toilet flush valve that has a moveable buoyant float therein, wherein the float has an open bottom end to trap air therein and wherein the housing includes controls to selectively release air to allow the float to move upwardly therein to permit flushing. By timing when one or two air vents on the housing are open, the duration and volume of the flush can be controlled, with the buoyancy provided by the water lifting the float to open the flush valve. This provides a flushing system with minimal activation energy.