Patent · US Active

Pressure compensating flush valve with self-cleaning piston

US8069877B2 · kind B2 · utility

5Cited by

29References

6Claims

0Family size

Assignee

AS IP Holdco, LLC · US

Inventors

Barry Jacobs · Highland Park, US
Frank Seggio · Wayside, US
Frank Christ · Herrsching am Ammersee, DE
Juergen Sponheimer · Klausen, DE
Walter Schmitz · Otterfing, DE

Key dates

Filing date	May 6, 2008
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Feb 3, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87917
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A flush valve according to the present disclosure includes a pressure compensating device for toilet and urinals to ensure consistent flush and bowl refill volumes. Certain flush volume limits may required for compliance with federal, state and local regulations regarding water usage. The flush valve can adjust water flow rates within the prescribed water usage limits and does not sacrifice the toilet's bowl washing and waste removal capabilities.

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