Self-opening and/or self-closing umbrella

Details Self-opening and/or self-closing umbrella Self-opening and/or self-closing umbrella

1996-05-21

1998-10-06

Wood, Wynn E.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 98, 135 203, 135 254, 135 22, A45B 2514

Patent

active

058162763

ABSTRACT:
An umbrella includes an elongated stick for connecting a handle to a cano and an elastic-driven mechanism for controlling operation of the canopy between an open end position and a closed end position by moving a slide mechanism, which is linked to the canopy, relative to the stick. The elastic is set under tension when the canopy occupies one of the end positions to bias the slide mechanism so that the canopy seeks the other end position. A latch releasably locks the slide mechanism when the canopy occupies the one end position.

REFERENCES:
patent: 2224882 (1940-12-01), Peok
patent: 2483585 (1949-10-01), Lewis
patent: 2721569 (1955-10-01), Militano
patent: 3171418 (1965-03-01), Meyer
patent: 4011881 (1977-03-01), Becher
patent: 4041966 (1977-08-01), Sakurai
patent: 4763679 (1988-08-01), Lerch
patent: 4813492 (1989-03-01), Haines
patent: 5174319 (1992-12-01), Chou et al.
patent: 5213122 (1993-05-01), Grady, III
patent: 5390686 (1995-02-01), Lin et al.

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