Automatic umbrella

Details Automatic umbrella Automatic umbrella

1989-04-17

1990-12-18

Safavi, Michael

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 22, 135 23, A45B 2516

Patent

active

049779133

ABSTRACT:
An automatic umbrella has a telescopic stick, a frame carrying a canopy and connected to the stick by rings, automatic closing and opening means, a case connected to the lower tube of the stick, and means for twisting the folds of the canopy. Means for twisting the folds may have a thread provided on the middle tube of the stick, and a notch provided on the lower tube of the stick and engaging with the thread.

REFERENCES:
patent: 1708214 (1929-04-01), Burris
patent: 1797019 (1931-03-01), Polansky
patent: 1838004 (1931-11-01), Spiro
patent: 2187372 (1940-01-01), Capaldo
patent: 3856030 (1974-12-01), Sato
patent: 4523601 (1985-06-01), Grady et al.
patent: 4548222 (1985-10-01), Day

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