Fluid under pressure expausor apparatus understanding a device that allows you to do the key service step (Machine-translation by Google Translate, not legally binding)

摘要

Apparatus for expanding fluid under pressure, comprising a device that allows it to serve as a stopcock, the type of this device being capable of causing the arrest of the arrival of this fluid at the will of the operator and comprising a deformable membrane subjected to a part to the action of an elastic regulating member and of another part to the action of the pressure of the fluid in loop to a set forming key or valve and sending the opening of the arrival channeling of said fluid characterized in that the elastic member of adjustment such as a spring is fixed by one of its ends to the membrane, while its other end is integral with a moving element in a direction substantially perpendicular to the plane of said membrane so as to act on the latter either by compression or by traction in such a way that during the normal operation of said spring apparatus acts by compression, but acts by traction ion under the influence of an appropriate displacement of the aforementioned moving element passing through a neutral point corresponding to its free position. (Machine-translation by Google Translate, not legally binding)