Inflatable rings seal joint. After inflation, space pressurized to test for leakage through joint. Rings protect surface of aperture from contact with metal structure of plug, and accommodate out-of-roundness and irregular surface contours without leaking. Pressure seal requires no preparation or cleanup.
Inflatable Rings For Temporary Sealing
NASA Tech Briefs ; 16 , 6
1992-06-01
Miscellaneous
No indication
English
Inflatable sealing type expansion cabin device and automobile
European Patent Office | 2021
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