Collapsible shelter structure
US6892744B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 26, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Apr 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S135/902
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quickly erectable structure includes expandable/collapsible top and bottom assemblies that are interconnected to facilitate forming an enclosure and to facilitate taking down the enclosure. Specifically, the bottom assembly includes a plurality of interconnected X-shaped subframes that combine to form a telescoping scissor frame. The top assembly includes a plurality of inverted foldable Y-shaped subframes attached together and to a top of the telescoping scissor frame in a manner that combines the two to form a stable umbrella-like overcenter top frame attached atop the telescoping scissor frame. A drawstring mechanism is attached to a peak of the structure to hold the top frame in an expanded position. Flexible covers are attached to the two frames, and a drawstring arrangement on the top cover allows flaps to be lifted to form 360 degrees of windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.