Apparatus including a boom to be compressed and rolled up

Details Apparatus including a boom to be compressed and rolled up Apparatus including a boom to be compressed and rolled up

2005-01-18

2005-01-18

Friedman, Carl D. (Department: 3635)

Static structures (e.g., buildings)

Striplike unit, reversibly flexible and rigid

C052S111000, C052S002130

Reexamination Certificate

active

06843029

ABSTRACT:
An apparatus includes at least one boom including a tip and a foot and being designed and arranged to be rolled up to form a roll. The tip is located in a radial inward region of the roll and the foot being located in a radial outward region of the roll. The apparatus further includes a unit being designed and arranged to unfold the at least one boom and including a bearing being designed and arranged to cooperate with the foot in a way that the boom in the region of the bearing at the beginning of the unfolding process has an enlarged cross section. Especially, the apparatus may be used in space technology for unfolding a solar sail.

REFERENCES:
patent: 3367604 (1968-02-01), Matteo
patent: 3608844 (1971-09-01), Tumulty et al.
patent: 6137454 (2000-10-01), Peck
patent: 6508036 (2003-01-01), Cadogan et al.
patent: 198 25 785 (1999-12-01), None
patent: 0524888 (1993-01-01), None
Seboldt, et al.; “Ground-Based Demonstration of Solar Sail Technology”, pp. 2-4.

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