Two button safety umbrella

Details Two button safety umbrella Two button safety umbrella

1992-09-22

1994-03-29

Friedman, Carl D.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

A45B 2514, A45B 2516

Patent

active

052975711

ABSTRACT:
A two button safety umbrella is provided having an inner tube, a middle tube, and an outer tube, which are respectively coupled to related ribs of the umbrella. A coil spring is disposed within the inner tube and the middle tube is disposed over the inner tube. Two button assemblies are coupled to the middle and the outer tubes, respectively, to control the opening and closing of the umbrella, which is thereby operated easily and safely.

REFERENCES:
patent: 3658077 (1972-04-01), Sato
patent: 4421133 (1983-12-01), Huang
patent: 4534374 (1985-08-01), Day
patent: 4825888 (1989-05-01), Su

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