Aeronautics and astronautics – Spacecraft – Reusable or returnable
Patent
1981-02-04
1983-03-22
Barefoot, Galen L.
Aeronautics and astronautics
Spacecraft
Reusable or returnable
322 2R, 339 5R, 339 3R, 343DIG2, 244173, B64G 144
Patent
active
043772668
ABSTRACT:
A structural array and electrical rotary joint for transmitting an electrical power between large space structures having relative rotational movement therebetween is disclosed as including large support framework structures A and B which rotate relative to one another about a common axis of rotation X. A rotary interface joint 14 is defined between the structures A and B. A cylindrical hub member C is carried by the structure A and a cylindrical hub member is carried by support structure B with hub member C being received concentrically within hub member D for relative rotation. Tension connecting cables connect hub member C and hub member D with their associated outer structures A and B whereby relative rotational movement between structures A and B is transmitted to the cylindrical hub members for unitary motion therewith. Electrical conductor brush members 18 are carried by the hub D and electrical contact rings 16 are carried by the hub member C in sliding electrical contact with the brushes for transmission of electrical power during relative rotational movement between the support structures A and B.
REFERENCES:
patent: 2761569 (1956-09-01), Iserman
patent: 3095252 (1963-06-01), Adkins
patent: 3455549 (1969-07-01), Forbush
patent: 3604011 (1971-09-01), Hall
patent: 3713164 (1973-01-01), Foury
Denman et al. "A Microwave Power Transmission Sys. for Space Sat. Power", SAE/P-78/75, pp. 162-168, 1978.
Tonelli, "Design and Evaluation of a 5 GW GaAlAs Solar Power Sat.", SAE/P-78/75, pp. 156-161, 1978.
Belew Robert R.
Boehme Richard J.
Barefoot Galen L.
Beumer Joseph H.
Manning John P.
The United States of America as represented by the Administrator
Wofford, Jr. Leon D.
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