Control cords of an automatic umbrella

Details Control cords of an automatic umbrella Control cords of an automatic umbrella

1997-05-28

1998-09-15

Mai, Lanna

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 28, A45B 2514

Patent

active

058065458

ABSTRACT:
The present invention relates generally to an umbrella, and more particularly to an umbrella provided with improved control cords by which the automatic opening and the automatic closing of the umbrella are capable of being controlled, and under the improved control cords providing, they have only a few portions exposed and the outer ends are connected within the runner and hidden by an elastic ring. It is thus making sure for safety and a cover of the umbrella will not be easily broken as a prior one.

REFERENCES:
patent: 250942 (1881-12-01), Miniere
patent: 680661 (1901-08-01), Hunt
patent: 706352 (1902-08-01), Smith
patent: 2568362 (1951-09-01), Primavera
patent: 4860776 (1989-08-01), McQuain
patent: 4928718 (1990-05-01), Apple
patent: 4977913 (1990-12-01), Meyman
patent: 5174319 (1992-12-01), Chou et al.
patent: 5232004 (1993-08-01), Wu
patent: 5626160 (1997-05-01), Ko

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