Mechanism for opening and collapsing umbrella

Details Mechanism for opening and collapsing umbrella Mechanism for opening and collapsing umbrella

2007-04-02

2009-08-18

Yip, Winnie (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Runners and notches

C135S039000, C135S043000

Reexamination Certificate

active

07575009

ABSTRACT:
A mechanism for opening and collapsing an umbrella includes a runner which has two lockers pivotably connected thereto and an operation collar is movably mounted to the shaft of the umbrella so as to operate the two lockers. Each of the lockers is a curved member and pivotably connected to the runner by a pivot. Two ends of the each locker are pivotable relative to the pivot in a direction perpendicular to an axis of the runner. The user simply moves the operation collar to pivot the lockers to open and collapse the umbrella.

REFERENCES:
patent: 508189 (1893-11-01), Swan
patent: 2528003 (1950-10-01), Katzberg
patent: 3258021 (1966-06-01), Tartaglia
patent: 3424180 (1969-01-01), Giancarlo
patent: 5911233 (1999-06-01), Wu
patent: 6354629 (2002-03-01), McNeal et al.
patent: 6758229 (2004-07-01), Wang
patent: 6941960 (2005-09-01), Huang
patent: 7281542 (2007-10-01), Ko
patent: 2005/0194027 (2005-09-01), Ko
patent: 2005/0241687 (2005-11-01), Ko

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