Title:
EXTENDABLE/RETRACTABLE SUPPORT COLUMN
Document Type and Number:
WIPO Patent Application WO2004094790
Kind Code:
A3
Abstract:
An extendable and retractable column which is formed from at least three linked sections. The linked sections include a plurality of individual sections linked end to end. As the linked sections are extended, each of the individual sections of the linked chains engage individual sections of adjacent linked chains to form a column. As the linked sections are retracted, each of the individual sections of the linked chains disengage from the individual section of the adjacent linked sections and the individual linked sections may be rolled up for compact storage.
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Inventors:
COLMAN MARK (US)
NORRIS JOHN (US)
NORRIS JOHN (US)
Application Number:
PCT/US2004/011763
Publication Date:
November 02, 2006
Filing Date:
April 16, 2004
Export Citation:
Assignee:
TOWER SOLUTIONS LLC (US)
COLMAN MARK (US)
NORRIS JOHN (US)
COLMAN MARK (US)
NORRIS JOHN (US)
International Classes:
A47F5/00; A47F7/00; C12P21/06; F16M11/00; F16M13/00; F01L
Foreign References:
| US4829739A | 1989-05-16 | |||
| US5249396A | 1993-10-05 |
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