NASA NTRS · 19790014303
Retractable environmental seal
Abstract
A retractable environmental seal for use in sealing the opening of the exit cone for a rocket nozzle is described. A diaphragm-like cover having a central region adapted to be seated in sealing relation with the periphery of the opening is discussed. 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 are characterized.
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Dettling, J. R.. 1979-03-27. Retractable environmental seal. https://ntrs.nasa.gov/citations/19790014303
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