Tent – canopy – umbrella – or cane – Portable shelter – Framework
Patent
1995-06-26
1997-01-21
Mai, Lanna
Tent, canopy, umbrella, or cane
Portable shelter
Framework
135123, 135138, 52 86, E04H 1536
Patent
active
055952038
ABSTRACT:
A portable stressed arch structure is constructed by assembling an essentially flat, planar frame of straight, uncurved components, and then drawing two opposite sides together and securing them with tension cables to hold the frame in an arch configuration. The arched framework is then covered with a conventional tarp or the like, as desired. The structure may be formed substantially of conventional polyvinyl chloride or other plastic pipe or tube, and may also utilize modified or specially formed connectors and other components. Supplementary bracing and other components may be added as desired or as needed, depending upon anticipated loads and size of the completed structure. Structures may be formed having relatively widely spaced arched ribs, or alternatively may be constructed having two or more adjacent ribs joined by common specialized connectors. The result is an easily assembleable and economical structure suitable for use as a shelter for boats, cars, and/or other relatively large objects, and/or for use as a garden or yard shed or the like, as desired.
REFERENCES:
patent: 2144747 (1939-01-01), Adams
patent: 2677384 (1954-05-01), Luisada
patent: 3088244 (1963-05-01), Commisso
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patent: 3424178 (1969-01-01), Yazaki
patent: 3798851 (1974-03-01), Utahara
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patent: 3970096 (1976-07-01), Nicolai
patent: 4121604 (1978-10-01), Rain
patent: 4404980 (1983-09-01), Wade
patent: 4433700 (1984-02-01), Dohet
patent: 4739784 (1988-04-01), Fast
"Porta-Greens" Standard Tube and T. I. Limited 1959.
Litman Richard C.
Mai Lanna
LandOfFree
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