Automatic umbrella with multiple operation modes

Details Automatic umbrella with multiple operation modes Automatic umbrella with multiple operation modes

1995-05-16

1996-07-09

Wood, Wynn E.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 40, 135 203, 135 23, 135 24, 135 2533, A45B 2514

Patent

active

055335411

ABSTRACT:
An automatic umbrella including an inside cap at the top of the umbrella shaft thereof, a top runner mounted around the umbrella shaft, an open control spring mounted between the inside cap and the top runner and compressed to preserve energy for opening the umbrella when the umbrella is collapsed, a collapse control spring compressed and retained in the compressed position by means of the operation of the hook of a locating device on the top end of the bottom shaft of the umbrella shaft, and the operation of the detent of a release control device inside the umbrella shaft, to preserve energy for collapsing the umbrella when the umbrella is opened, and a control block with a push plate moved vertically to actuate the release control device in automatically opening/closing the umbrella, and a bottom runner having a hook hooked on the umbrella shaft for allowing the umbrella to be operated manually when the hook of the bottom runner is released.

REFERENCES:
patent: 3687146 (1972-08-01), Seitel
patent: 4548222 (1985-10-01), Day
patent: 5036872 (1991-08-01), Huang
patent: 5088512 (1992-02-01), Chou et al.
patent: 5144969 (1992-09-01), Chou et al.
patent: 5224505 (1993-07-01), Wu
patent: 5232004 (1993-08-01), Wu
patent: 5247955 (1993-09-01), Wu
patent: 5267583 (1993-12-01), Wu
patent: 5361792 (1994-11-01), Lin et al.
patent: 5390686 (1995-02-01), Lin et al.

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