Simplified fully automatic umbrella

Details Simplified fully automatic umbrella Simplified fully automatic umbrella

1993-08-11

1994-06-07

Friedman, Carl D.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 251, 135 41, A45B 2514

Patent

active

053180674

ABSTRACT:
An improvement on simplified fully automatic umbrella is disclosed. This umbrella comprises a shank consisting of an inner tube and an outer tube, the inner tube has at upper section a middle ring and an extension while the outer tube has at upper end a lower ring with an upper pawl; an umbrella opening spring received within the extension; a cylinder mounted around the extension and provided at lower end with an upper ring; an umbrella closing spring mounted around the inner tube; an actuating mechanism consisting of a push button, an upper insert containing a compression spring, a lower insert containing a lower pawl, an actuator and a detent, and a wire interconnected between the two inserts; a canopy structure connected to the upper, middle and lower rings; and a handle provided at bottom of the outer tube.

REFERENCES:
patent: 638700 (1899-12-01), Cameron
patent: 3680571 (1972-08-01), Houston
patent: 3729012 (1973-04-01), Weber
patent: 3856030 (1974-12-01), Sato
patent: 4951590 (1990-08-01), Kassbaum
patent: 5224505 (1993-07-01), Wu

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