Patent ID: 6112758
Filing Date: 2000-09-05
Classification: F16K,Y10T

Abstract:
An automatic shut-off assembly for a pressurized gas line, comprising:piping for providing a conduit for a pressurized gas and for connecting to a pressurized gas line;a shut-off connected to said piping for stopping gas flow through said piping in response to the gas flow reaching a predetermined gas flow rate; anda breakaway section connected to said piping downstream of said shut-off for providing a predetermined break location of said piping in response to a predetermined magnitude of shear force applied to said piping;wherein said breakaway section comprises a scored section of said piping, said scored section comprising a plurality of cuts formed in said piping, and wherein said plurality of cuts are oriented at a plurality of angles, said plurality of angles comprising longitudinal, transverse and diagonal angles, wherein the longitudinal axis is parallel to a pipe axis of the piping at said scored section.