Patent · US Active

Dual flush electronic flush valve

US8434172B2 · kind B2 · utility

10Cited by

34References

8Claims

0Family size

Assignee

Masco Canada Limited · CA

Inventors

Bart Nowak · London, CA
Xan Vy Du · London, CA
Frank A. Stauder · London, CA
Jeff Belz · Eastpointe, US

Key dates

Filing date	Apr 28, 2009
Grant date	May 7, 2013
Priority date	—
Expiry date	Aug 13, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE03D5/105
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A flush valve utilizes a sensor to determine how close a user is to a toilet to determine whether to utilize a longer flush with more water to remove, typically, solid waste or a shorter flush with less water to remove, typically, liquid waste. If a user is in a zone that is closer to the toilet, a longer flush is deemed necessary and if a user is in a zone farther from the toilet, a shorter flush is deemed necessary. Users sometimes move between one zone or the other and the flush valve determines whether a user spends more or less time in the zones to determine whether to provide a shorter or a longer flush.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.