Patent · US Active

Double action direction fluid flow valve

US9587757B2 · kind B2 · utility

4Cited by

9References

10Claims

0Family size

Inventors

John L. Johnson · Raleigh, US
James G. Johnson · Lake Forest, US

Key dates

Filing date	Jul 19, 2016
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Jul 19, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/8667
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.

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