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Pyrotechnic actuated valve

  • US 3,900,211 A
  • Filed: 04/04/1974
  • Issued: 08/19/1975
  • Est. Priority Date: 04/04/1974
  • Status: Expired due to Term
First Claim
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1. A pyrotechnic actuated valve connectable to a container of fluid under pressure, comprising:

  • A. a hollow valve body having an inlet at one end connectable to a container of fluid under pressure, and terminating in an internal flange;

    B. said hollow valve body including a poppet cavity with a discharge outlet therefrom;

    C. a movable poppet in said poppet cavity including an external flange interconnected to a poppet body by a shearable web, said flange being engageable against said internal flange of said inlet and said poppet body normally closing said outlet;

    a poppet support positioned in operable engagement with said poppet, comprising a dished disc in engagement with said movable poppet, a retainer at the end of said valve body remote from said inlet, and a hollow, frangible tube held in longitudinal compression between said disc and said retainer; and

    E. a pyrotechnic charge internal of said frangible support tube adapted upon activation to disintegrate said support tube whereupon fluid pressure moves said poppet, after shearing said shearable web, to open said outlet with disintegrated material of said tube and pyrotechnic residue being maintained free from said outlet by the moved poppet.

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