Ammunition and explosives – Igniting devices and systems – Arming devices
Patent
1981-02-02
1983-08-02
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Arming devices
102229, 102414, 102416, 294 83AA, 294 83AE, 89 1B, F42C 300, F42C 500
Patent
active
043959512
ABSTRACT:
An improved release apparatus, including an actuator device, a release dee and a firing device, releases the firing device in a water environment and not in an air environment when the actuator device is remotely actuated. When in a water environment, a predetermined gas pressure from the actuator device drives forward a pusher piston and valve sleeve arrangement, disposed in a water chamber of the release device, initially to close off lower entry/exit orifices in the water chamber by action of the valve sleeve, and then to compress an entrapped column of water to a predetermined water pressure sufficiently to cause shearing off of an annular lip of a ball lock piston thereby separating the firing device from the release device. When in an air environment, the pressure from a compressed entrapped air column is not sufficient to cause shearing off or folding down of the annular lip of the ball lock piston, and, accordingly, the release apparatus is safed.
REFERENCES:
patent: 2660952 (1953-12-01), Mohaupt
patent: 2996990 (1961-08-01), Leaman
patent: 3242666 (1966-03-01), Peterson
patent: 3245346 (1966-04-01), Schuetzler
patent: 3511183 (1970-05-01), Geffner
patent: 3532057 (1970-10-01), Aubrey
patent: 3577926 (1971-05-01), Schuemann
patent: 3609825 (1971-10-01), Pullos
patent: 3628821 (1971-12-01), Reece
patent: 3754496 (1973-08-01), Noel
patent: 3765331 (1973-10-01), Montesi
patent: 3765332 (1973-10-01), Baker et al.
patent: 4311097 (1982-01-01), Backstein et al.
Durrell Robert R.
Goode Charles W.
Hinely Douglas M.
Montesi Louis J.
Branning A. L.
Brown David H.
Sciascia R. S.
The United States of America as represented by the Secretary of
Wynn J. G.
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