Operation device for outdoor umbrella

Details Operation device for outdoor umbrella Operation device for outdoor umbrella

2005-09-20

2005-09-20

Mai, Lanna (Department: 3637)

Tent, canopy, umbrella, or cane

Umbrella

Nonsymmetrical, axially offset, or inclined canopy

C135S020300, C135S028000, C135S042000

Reexamination Certificate

active

06945263

ABSTRACT:
An outdoor umbrella includes an operation device including a ring-shaped slider joint slidably connected to a shaft of the outdoor umbrella in a vertical movable manner, a locking stopper fitted in a locker hole of the shaft in an inwardly movable manner, a resilient unit for applying an urging pressure against the locking stopper to normally urge and retain the locking stopper extending into the locker hole so as to lock up the slider joint on the shaft, and a handle device for driving the locking stopper in an outwardly movable manner to move away from the locker hole so as to unlock the slider joint from the shaft.

REFERENCES:
patent: 166980 (1875-08-01), Francis
patent: 631442 (1899-08-01), Rose
patent: 846389 (1907-03-01), Blackburn
patent: 1223833 (1917-04-01), Robbins
patent: 3446523 (1969-05-01), Little
patent: 4135835 (1979-01-01), Kitchen et al.
patent: 4586525 (1986-05-01), Glatz et al.
patent: 5284171 (1994-02-01), Liu
patent: 5437297 (1995-08-01), Crisman et al.
patent: 5937882 (1999-08-01), Harbaugh
patent: 5960806 (1999-10-01), Steiner
patent: 6196242 (2001-03-01), Xu
patent: 252192 (1988-01-01), None
patent: 08056725 (1996-03-01), None

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