Brakes – Internal-resistance motion retarder – Motion damped from condition detected outside of retarder
Patent
1987-10-08
1989-06-27
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Motion damped from condition detected outside of retarder
16 485, 16222, 188268, 188274, 188276, 188290, 188306, 2441181, 2441371, 244158R, 267195, 267217, 267136, 403 28, 403 32, F16D 5700, F16F 912, B64G 122, B64G 144
Patent
active
048421065
ABSTRACT:
A rate controllable damping mechanism is disclosed. The mechanism includes a chamber disposed within a housing; an element mounted for movement within the chamber; a damping material, preferably a low melting temperature metal alloy, in the chamber for preventing the movement of the element at a first temperature and for damping the movement of the element at a second temperature; and a heater for selectively increasing the temperature of the damping material from the first temperature to the second temperature. Controlled damping is effectuated by heating the fluid material until it reaches a molten state at which the resultant fluid damps the movement of the element in a conventional manner. A novel method is also disclosed for structural stress relief.
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Elson Robert J.
Haidler John W.
Ludwig Howard R.
Yuan Mark S. C.
Butler Douglas C.
Hughes Aircraft Company
Karambelas A. W.
Meltzer Mark J.
Mitchell Steven M.
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