Retractable environmental seal

Details Retractable environmental seal Retractable environmental seal

1978-03-29

1979-03-27

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

With solid means as guard or protector

Bumper or guard protects distributor

23926515, 220266, 277192, 138 96R, B05B 1504

Patent

active

041461800

ABSTRACT:
A retractable environmental seal for use in sealing the opening of the exit cone for a rocket nozzle comprising a diaphragm-like cover having a central region adapted to be seated in sealing relation with the periphery of the opening and characterized by radially extended failure zones for facilitating a pressure-induced rupture of the cover, and a plurality of angularly spaced tension springs connected with the peripheral portion of the cover for retracting fractured segments of the cover from the opening subsequent to a pressure-induced rupture thereof.

REFERENCES:
patent: 2786353 (1957-03-01), Slabaugh
patent: 2984972 (1961-05-01), Davidson
patent: 3020710 (1962-02-01), Herzog
patent: 3228334 (1966-01-01), Oss
patent: 3229635 (1966-01-01), Oss
patent: 3753847 (1973-08-01), Gayner et al.
patent: 3996966 (1976-12-01), Princell

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