Automatic umbrella

Details Automatic umbrella Automatic umbrella

1978-11-29

1980-12-23

Machado, Reinaldo P.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

A45B 2516

Patent

active

042404541

ABSTRACT:
The invention relates to an improved automatic umbrella which comprises a tapered contracting cylinder at the uppermost portion thereof, a controlling tube at the middle portion thereof and a controlling lever at the lower portion thereof. Besides, the invention also comprises a set of spokes fixed on to the spoke hub of the controlling tube and a coil spring, one end thereof being homed within the tapered contracting cylinder while the other end thereof being resistant against the spoke hub. The controlling tube has an inward concave portion longitudinally provided with several holes in line for adjusting the tensity of the umbrella cloth. The controlling tube is provided with a top projecting piece, an interim projecting piece and a push button.

REFERENCES:
patent: 1844325 (1932-02-01), Killebrew
patent: 3161990 (1964-12-01), Morris
patent: 4041966 (1977-08-01), Sakurai

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