Box truss hoop

Details Box truss hoop Box truss hoop

1982-04-30

1984-10-09

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

52646, 52645, 343881, 343915, E04H 1234

Patent

active

044753233

ABSTRACT:
A box truss hoop which is defined by circumferentially adjacent collapsible boxes. The hoop is expandable radially from a compact, folded configuration to a deployed hoop configuration. Each of the boxes includes collapsible inner and outer frames, connecting side members extending between the inner and outer frames and diagonal braces. When employed as an antenna, the box truss hoop includes a shaped reflective surface extending across the hoop and a feed located at the focus of the reflective surface.

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patent: 3771274 (1973-11-01), Vaughan
patent: 3913105 (1975-10-01), Williamson et al.
patent: 4030102 (1977-06-01), Kaplan et al.
Aviation Week, vol. 111, No. 19, Nov. 5, 1979, p. 57.
Martin Marietta Report No. 78-52411-01, Dec. 1978, "Deployable Box Truss Space Structure", Copies Submitted to USAF in 1979, Further Distribution by USAF Undetermined.

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