Patent · US Active

Fluid pressure regulator with no-drain valve

US8205638B2 · kind B2 · utility

2Cited by

10References

22Claims

0Family size

Assignee

Plastro Irrigation Systems Ltd. · IL

Inventors

Zvika Einav · Migdal HaEmek, IL
Moshe Lutzky · Gvat, IL
Asaf Katzin · Migdal HaEmek, IL

Key dates

Filing date	Jul 25, 2006
Grant date	Jun 26, 2012
Priority date	—
Expiry date	Oct 2, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/88054
WIPO fieldControl
WIPO sectorInstruments

Abstract

A fluid pressure regulator with a no-drain valve where the no drain valve also serves as a pressure reactive member to operate the pressure regulator valve. At low pressure settings, the no-drain valve is biased closed, and the regulator is biased open. As pressure progressively rises, the no-drain valve opens, then abuts a piston component of the regulator valve, and as pressure continues to rise, moves together with the regulator piston to move the regulator valve toward a closed position, thus regulating pressure.

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