Aeronautics and astronautics – Safety lowering devices – Parachutes
Patent
1987-11-23
1989-07-11
Barefoot, Galen
Aeronautics and astronautics
Safety lowering devices
Parachutes
244152, B64D 1702, B64D 1736
Patent
active
048464236
ABSTRACT:
A gliding wing parachute apparatus having a plurality of longitudinally extending ram-air inflation cells which are grouped into individual stages which are released preferably upon full inflation of the previous stage. The stages are preferably balanced with respect to the centerline of the parachute. The second and third stages are reefed by being retained by lacing or fabric flaps into closed position until full deployment of the previously deployed stage is completed. Pyrotechnic cutting devices can be responsive to full inflation to cause release of the next scheduled stage of ram-air inflation cells. Subsequent stages can be formed by inflation cells of a thinner material since the load will be less than during initial deployment. Also tensile strength of suspension lines can be decreased with subsequent stages due to lower loading characteristics.
REFERENCES:
patent: 2929589 (1960-03-01), Carter et al.
patent: 3245639 (1966-04-01), Mitchell
patent: 3756547 (1973-09-01), Snyder et al.
patent: 3822844 (1974-07-01), Sutton
patent: 3945592 (1976-03-01), Sutton
patent: 4065079 (1977-12-01), Winchurch
patent: 4129272 (1978-12-01), Jones et al.
patent: 4175722 (1979-11-01), Higgins
patent: 4540145 (1985-09-01), Matsua
Barefoot Galen
Pioneer Aerospace Corporation
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