Collapsible structural frame
US7533681B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 29, 2007 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Oct 29, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H2015/326
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method is disclosed for providing a collapsible support structure strut, which may include a strut member; a hollow tubular terminal end portion of the strut member having an inner surface; and a detachable looped eyelet having at least one loop and a pair of extending legs, the legs being springedly biased to engage the tubular terminal end of the strut, thereby frictionally holding the looped eyelet in place at the terminal end of the strut. The apparatus and method may also employ a holding plug, with first and second holding groove opposingly placed in the periphery of the holding plug, having at least a portion thereof that is shaped and sized to frictionally engage the inner surface of the tubular terminal end of the strut, to frictionally hold the holding plug in engagement with the strut. The detachable looped eyelet may also have at least two loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.