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:
Mar. 16, 2010
Filed:
Feb. 22, 2005
Daniel N. Halloran, Saukville, WI (US);
Douglas E. Bogard, Kohler, WI (US);
Peter W. Denzin, Glenbalah, WI (US);
Sudip Mukerji, Cedarburg, WI (US);
Daniel N. Halloran, Saukville, WI (US);
Douglas E. Bogard, Kohler, WI (US);
Peter W. Denzin, Glenbalah, WI (US);
Sudip Mukerji, Cedarburg, WI (US);
Kohler Co., Kohler, WI (US);
Abstract
A flush valve for a toilet has a valve body with a flow passage that narrows non-linearly down from the valve seat. The flow passage is formed by a surface that follows a polynomial expression so as to define a computationally derived flow profile that more closely follows the narrowing exhibited by falling water as it accelerates under gravity. The non-linear flow profile of the valve reduces the presence of air in the valve after a flush cycle is initiated so that greater flush efficiency can be achieved. The flush valve can also have a wide mouth overflow that narrows to improve flow in an overflow situation.