Two-way flow valve
OwnerAnthony M. Simsinventor
Life of this patent
Estimating the term…
Abstract
A two-way valve comprises a body containing two cylinders, a pair of valve assemblies, each comprising a piston which slides in a respective cylinder, each piston having a spindle extending from one end, a metering valve member which slides on the spindle and normally engages a valve seat at an end of the relevant cylinder, a circlip or other abutment on the spindle which engages the valve member and moves it away from the seat upon movement of the piston in one direction by hydraulic pressure, and a restraining spring inhibiting that movement.
Claims8
A two-way valve useful for inhibiting fluid flow in one direction while allowing it in a reverse direction, and vice versa, comprising:
- a body having walls defining two cylinders;
- and
- a pair of valve assemblies, each comprising a piston slidable in a respective cylinder, a spindle extending from one end of the piston, a metering valve member slidable on the spindle normally engaging a valve seat at one end of the relevant cylinder, abutment means on the spindle which engages the valve member and moves it away from the seat upon movement of the piston in one direction, and restraining means inhibiting that movement in that one direction;
- said body comprising a pair of hydraulic lines communicating with respective said cylinders and opening into each of the cylinders between the piston and metering valve member therein, the piston outer diameter exceeding the outer diameter of the valve member so that fluid introduced into a said cylinder at pressure urges the piston to move in said one direction against the restraining means.
Dependencies are inferred from the claim text.