Ring structure

Details Ring structure Ring structure

1977-12-19

1978-12-05

Faw, Jr., Price C.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

52 80, 47 17, 135 1R, A45F 100

Patent

active

041281047

ABSTRACT:
A structural framework composed of at least five intersected ring members providing a dome-shaped configuration over which a covering may be applied. A particular manner of ring member intersection is employed to make the structure self-supporting and to enable the ring members to be positioned with respect to one another to provide other geometric configurations.

REFERENCES:
patent: 353131 (1886-11-01), Greenwood
patent: 820716 (1906-05-01), Haynes
patent: 2548966 (1951-04-01), Gilmore
patent: 2956806 (1960-10-01), Roatson
patent: 3051185 (1962-08-01), Reynolds
patent: 3405886 (1968-10-01), Gosnell
patent: 3674276 (1972-07-01), Street
Domebook II .COPYRGT. 4/2/71, pp. 95 and 118.

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