초록 ▼

A thermally activated valve is disclosed for attachment to a pressurized vessel such that substances contained therein can be released at a selected temperature value. The valve includes a body having an inlet and an outlet in fluid communication with each other. The inlet fluidly communicates with

A thermally activated valve is disclosed for attachment to a pressurized vessel such that substances contained therein can be released at a selected temperature value. The valve includes a body having an inlet and an outlet in fluid communication with each other. The inlet fluidly communicates with the interior of the pressurized vessel while the outlet is in communication with an area having a lower pressure value. Secured in the outlet is an insert having a stem. The stem has a helical groove formed about its outer periphery and has at least one small aperture which is in communication with the helical groove. The insert cooperates with the body to form a helical passageway therethrough. Positioned within the helical passageway is a material for normally blocking fluid flow therethrough which is fusible at a selected temperature to permit fluid flow therethrough. The helical passageway cooperates with the small aperture formed in the stem to extend the life of the valve by inhibiting the extrusion of the fusible material.

대표청구항 ▼

A thermally activated valve comprising: a body having an inlet and an internally threaded outlet in fluid communication with each other, said inlet adapted to be attached to a pressure source and said outlet communicating with an area having a lower pressure value than said pressure source; (b) an i

A thermally activated valve comprising: a body having an inlet and an internally threaded outlet in fluid communication with each other, said inlet adapted to be attached to a pressure source and said outlet communicating with an area having a lower pressure value than said pressure source; (b) an insert having a threaded stem with an enlarged head formed on an end thereof, said head having at least one aperture formed therethrough, said stem being threadably secured to said outlet with said enlarged head preventing said insert from completely entering said body, said stem further having a groove formed in its outer periphery which extends from said aperture formed in said head to an opposite end of said insert, the bottom of said groove extending below the root of said thread, said groove cooperating with an internal surface of said body and with said aperture to form a passageway through said valve; and (c) material means for normally blocking fluid flow through said passageway and being fusible at a selected temperature to permit fluid flow from said pressure source to said area having a lower pressure value.