초록 ▼

A vent plug assembly for relieving overpressure from within an instrument casing and comprising a body adapted for secured placement within an aperture defined in the exterior wall of the casing and having a thru-bore and a blind recess symetrically spaced apart and of like configuration and interna

A vent plug assembly for relieving overpressure from within an instrument casing and comprising a body adapted for secured placement within an aperture defined in the exterior wall of the casing and having a thru-bore and a blind recess symetrically spaced apart and of like configuration and internal cross-sectional dimension. A cooperating plug having a top plate and a pair of dependent stubs of like cross-sectional configuration and spacing as the thru-bore and recess of said body is interchangeably insertable within the thru-bore and recess of the body with one of the stubs defining a blind upward recess and the other of said stubs defining a thru-bore. The plug is interchangeably displaceable manually such that when the respective thru-bore of the body and plug are interfitted, continuous venting occurs while when the blind recess stub of the plug is inserted in the thru-bore of the body, venting occurs only at a predetermined value of pressure build-up from within the casing sufficient to expel the assembly from the installed aperture of the casing.

대표청구항 ▼

[ In the claims:] [1.] A vent plug assembly for relieving fluid pressure from within an enclosed instrument casing comprising:a body adapted to be installed in a secured relation within an aperture defined in the casing of the instrument with which said vent plug assembly is to be utilized, said bod

[ In the claims:] [1.] A vent plug assembly for relieving fluid pressure from within an enclosed instrument casing comprising:a body adapted to be installed in a secured relation within an aperture defined in the casing of the instrument with which said vent plug assembly is to be utilized, said body including at least one transversely extending thru-bore and at least one blind recess inwardly extending parallel and at a location removed from said thru-bore, with said thru-bore and said recess being of like sectional configuration and dimension;a removable plug defining a top plate having at least a pair of dependent stubs of like spacing and sectional configuration as the thru-bore and recess of said body with one of said stubs being blind to fluid flow and the other of said stubs defining a thru-bore for communicating fluid flow; andsaid plug being interchangeably insertable selectively onto said body with either the one of said stubs or the other of said stubs received in the thru-bore of said body.