Positioning structure for umbrella runner

Details Positioning structure for umbrella runner Positioning structure for umbrella runner

2007-10-16

2007-10-16

Dunn, David (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Retainers

Reexamination Certificate

active

10833168

ABSTRACT:
An umbrella runner has two engaging slices respectively pivotally connected on two sides of the runner. A sleeve is displaceably disposed around the runner. An annular groove is provided on a top tube of the shaft of the umbrella. The sleeve can be moved upward and downward for pivoting the slices to position the runner and the umbrella in a stable open state.

REFERENCES:
patent: 1824192 (1931-09-01), Bouma
patent: 3643674 (1972-02-01), Granrath
patent: 6382222 (2002-05-01), Ko
patent: 6758229 (2004-07-01), Wang
patent: 6941960 (2005-09-01), Huang
patent: 621691 (1981-02-01), None

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