Thermally activated valve

Details Thermally activated valve Thermally activated valve

1987-04-29

1988-05-17

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 74, 220 89B, F16K 1714

Patent

active

047443839

ABSTRACT:
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.

REFERENCES:
patent: 195367 (1877-09-01), Hiller
patent: 2356283 (1944-08-01), Steins

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