Patent · US Expired

Apparatus including a boom to be compressed and rolled up

US6843029B2 · kind B2 · utility

8Cited by

4References

3Claims

0Family size

Assignee

DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE

Inventors

Elmar Breitbach · Oebisfelde, DE
Christoph Sickinger · Königslutter am Elm, DE
Lars Herbeck · Veltheim, DE

Key dates

Filing date	Feb 21, 2002
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Mar 15, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64G1/407
WIPO fieldTransport
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.