Supports – Stand – Plural leg
Patent
1986-11-12
1988-04-19
Foss, J. Franklin
Supports
Stand
Plural leg
343705, 343720, H04B 134
Patent
active
047384212
ABSTRACT:
A self-orienting device is disclosed for a transducer adapted to be dropped from an aircraft or other vehicle. An elongated body is provided with first, second and third arms each of which is pivotally connected with the body for pivotal motion between a stowed position parallel to the body and an erect position perpendicular to the body. The first and second arms are disposed on opposite sides of the body and the third arm is disposed therebetween. An actuator spring is provided on each arm urging it from the stowed position to the erect position and a tubular housing over the arms and body retains the arms in the stowed position. The third arm is also retained in the stowed position by a separate releasable retainer. After the transducer comes to rest on the ground, an ejector spring is released to separate the housing from the arms and the body whereby the first and second arms move to the erect position. After a predetermined time delay, the retainer on the third arm is released; if the body is lying right-side-up, i.e. with the third arm on the upper side of the body, the third arm will move to its erect position so that it is oriented perpendicular to the ground. If the body is in the wrong-side-up position before release of the third arm, the pivotal motion of the third arm will flip the body over to the right-side-up position and the third arm will be perpendicular to the ground.
REFERENCES:
patent: 1859289 (1932-05-01), Dalton
patent: 2398794 (1946-04-01), Maltby
patent: 3465251 (1969-09-01), Meek
patent: 3870263 (1975-03-01), Hardiman
patent: 4022414 (1977-05-01), Egger
patent: 4640482 (1987-02-01), Rogers
Green Richard F.
Manor LeRoy L.
Foss J. Franklin
Olson Robert A.
Sparton Corporation
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