Automatic umbrella

Details Automatic umbrella Automatic umbrella

1991-09-24

1992-08-25

Scherbel, David A.

Tent, canopy, umbrella, or cane

Umbrella

Mechanically operated

135 22, 135 24, A45B 1100

Patent

active

051410109

ABSTRACT:
An automatic open and close umbrella, that has an umbrella canopy, a hollow shaft, a driven member which is driven by means of a threaded drive shaft and has at least one radial spline extending through an axial slot in the wall of the hollow shaft, and a handle located at the proximate end of the hollow shaft containing a drive motor which powers a threaded drive shaft to drive the driven member along the hollow shaft, incorporates a manual override mechanism to engage and disengage the drive motor to manually operate the driven member along the hollow shaft to open and close the umbrella.

REFERENCES:
patent: 737787 (1903-09-01), Shepherd
patent: 1109854 (1914-09-01), McCabe
patent: 2224882 (1940-12-01), Peck
patent: 3129715 (1964-04-01), Militano et al.
patent: 3258021 (1966-06-01), Tartaglia
patent: 4011881 (1977-03-01), Becher
patent: 4319600 (1982-03-01), Roche
patent: 4523601 (1985-06-01), Grady et al.
patent: 4572226 (1986-02-01), Williams et al.

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