Folding umbrella

Details Folding umbrella Folding umbrella

1985-06-07

1987-01-27

Hafer, Robert A.

Tent, canopy, umbrella, or cane

Umbrella

Collapsible in length

135 29, 135 20M, A45B 1906, A45B 1100

Patent

active

046388273

ABSTRACT:
A folding umbrella, particularly useful as a beach umbrella, in which circumferentially spaced outer ribs are slidably disposed on cooperating struts as the undersupport of the fabric cover, and in one extreme position of the slides, the umbrella opens to a radius of approximately 42 inches, and in an opposite slide position, the umbrella closes to a radius of approximately 32 inches, the 10 inch difference being the result of slide movement of the end of the rib along a strut which produces an internal fold in a central location of the fabric cover and thus diminishes its size accordingly.

REFERENCES:
patent: 1233718 (1917-07-01), Shirley
patent: 1240001 (1917-09-01), Youngren
patent: 1839309 (1932-01-01), Gundel
patent: 2088127 (1937-07-01), Zeitschler
patent: 2187372 (1940-01-01), Capaldo
patent: 3693643 (1972-09-01), Weber
patent: 3732879 (1973-05-01), Okuda
patent: 3818919 (1974-06-01), Schultes et al.
patent: 4350175 (1982-09-01), DeMarco

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