Aeronautics and astronautics – Aircraft propulsion – Launching
Patent
1979-04-30
1981-02-24
Frankfort, Charles E.
Aeronautics and astronautics
Aircraft propulsion
Launching
92 88, 104161, 124 61, 244114R, 277189, B64F 104
Patent
active
042522854
ABSTRACT:
An improved dynamic seal for the longitudinal slot in a pressurized cylin of an aircraft catapult system having a shuttle adapted to travel at high speed through the slot. The seal includes a flexible, elongated sealing strip extended along the slot in sealing relation therewith to close the cylinder, and a series of ball detents mounted along the length of the slot on each side thereof for urging inwardly against the sides of the sealing strip thereby providing support for the strip throughout the length of the cylinder. When the shuttle, adapted to guide the strip internally of the cylinder as it passes therethrough, travels through the slot, the ball detents maintain the strip in sealing relation with the slot thereby preventing whipping of the strip forwardly of the moving shuttle.
REFERENCES:
patent: 3421718 (1969-01-01), Gehringer et al.
patent: 4164893 (1979-08-01), Granbom et al.
Hammond Joseph
Ward Donald A.
Frankfort Charles E.
Hansen Henry
Sciascia R. S.
The United States of America as represented by the Secretary of
Vozzo, Jr. Armand M.
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