Method of and apparatus for remotely controlling orifice-opening

Details Method of and apparatus for remotely controlling orifice-opening Method of and apparatus for remotely controlling orifice-opening

1980-10-17

1982-07-20

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

Destructible element

1376371, 251131, F16K 1304

Patent

active

043400779

ABSTRACT:
A nozzle, e.g. for an air sampler, is opened by remote control by the firing of a squib which breaks loose a silicone-sealing body which is normally pressed by spring force against the nozzle orifice. When the body breaks away, a closing frame swings into position and upon the remotely controlled firing of another squib allows a spring biased closing member to engage with its silicone seal the orifice.

REFERENCES:
patent: 3548848 (1970-12-01), Stichling
patent: 4095421 (1978-06-01), Silcox
patent: 4249563 (1981-02-01), Shaw

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