Patent · US Active

Toilet discharge valve assembly having moveable buoyant float therein

US9359752B2 · kind B2 · utility

5Cited by

3References

27Claims

0Family size

Assignee

FLUIDMASTER, INC. · US

Inventors

Tuan Le · Willow View Lane, US
Steve Cook · Longmont, US
Adam Sampson · Ramona, US

Key dates

Filing date	Jul 17, 2013
Grant date	Jun 7, 2016
Priority date	—
Expiry date	Oct 17, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE03D1/304
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

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