Harpoon heads and harpoons provided with such heads for the anch

Details Harpoon heads and harpoons provided with such heads for the anch Harpoon heads and harpoons provided with such heads for the anch

1994-02-08

1996-01-02

Barefoot, Galen L.

Aeronautics and astronautics

Landing field arrangement

Mooring devices

294 93, 294 8625, B64B 166, B64F 112

Patent

active

054801087

ABSTRACT:
An anchoring system using a harpoon secured under a helicopter and a grid a platform includes a shaft, having near its end, fingers oriented and movable radially between a retracted position and an extended position. The shaft includes a device for moving and retaining the fingers in the extended position. The device acts from a state activated in response to the penetration into the grid. It furthermore includes structure for unlocking the fingers and resetting the moving and retaining device. Harpoons including such catching heads, which have the advantage of being light and simple in construction, and capable of being adaptable to all types of helicopters are also contemplated.

REFERENCES:
patent: 3430305 (1969-03-01), Geffner
patent: 3502286 (1970-03-01), Warren
patent: 4120232 (1978-10-01), Hoffman, Jr.
patent: 4863205 (1989-09-01), Schron et al.
patent: 5039034 (1991-08-01), Burgess et al.
patent: 5190334 (1993-03-01), Sawdon

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