Fast, erectable, easily transportable structures
US4887397A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Oct 19, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H15/36
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A collapsible structural member including a plurality of segmental sections and devices for connecting adjacent segmental sections is disclosed. Each segmental section has a rigid, elongate body portion which terminates in end portions. The connecting devices connect the end portions of adjacent sections so as to define a maximal spacing between the adjacent end portions and to permit them to move between a maximum spaced apart realtionship and an abutting relationship. A quickly erectable shelter and a composite, collapsible support beam are also disclosed according to the present invention. The shelter has a flexible cover, at least one structural member including segmental sections for supporting the cover, connecting devices for connecting adjacent end portions of adjacent segmental sections, and a tensionable cable for moving the sections between a maximum spaced apart relationship and an abutting relationship defined by the connecting devices. The composite support beam includes at least two beam elements and at least one brace element for connecting the beam elements. Both the beam and brace elements have structural members adapted to assume a rigid, erect condition from a c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.