US 4,071,039 AGranted

Fluid pressure controlled valve assembly

OwnerSven Karl Lennart Goofinventor

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Abstract

A valve assembly of the type, wherein a first end of a movable plunger is adapted to collapse or compress a first tube length against an opposite tube backing or support structure in order to regulate or vary the flow conditions of a fluid in this first tube length, is equipped with a control assembly comprising a second interiorly pressurized tube length and a second or opposite end of the plunger engages this second tube length. Thus, by appropriately proportioning the sizes of the contact faces between the respective plunger ends and the tube length associated therewith it will be possible to control the flow conditions in one of the tube lengths responsive to the fluid pressure in the other tube length whereby various valve or regulating functions may be performed by the valve. The two tube lengths may be parts of one and the same tube whereby additional valve or regulating functions may be performed.

Claims9

Dependent claims

A fluid pressure controlled valve assembly comprising a valve body having a first bore therethrough, said first bore being formed to receive a first tube length therein, and a first transverse bore intersecting said first bore;

a plunger means having a shank portion and a head portion, said shank portion being inserted in said first transverse bore, an end of said shank portion engaging said first tube for collapsing the same against a tube support in said valve body, when said plunger means is moved in a first direction in said transverse bore responsive to pressure forces acting on said head portion;
and a control body having a second bore therethrough being formed to receive a second tube length therein, and a second transverse bore intersecting said second bore, said control body being disposed and secured to said valve body with said second transverse bore being aligned with said first transverse bore, and said plunger head portion being inserted in said second transverse bore engaging said second tube length for collapsing the same when said plunger means is moved in the opposite direction in said transverse bore responsive to pressure forces acting on said shank portion end.

Dependencies are inferred from the claim text.