Slim safety runner and multiple-fold umbrella thereof

Details Slim safety runner and multiple-fold umbrella thereof Slim safety runner and multiple-fold umbrella thereof

2007-08-14

2007-08-14

Dunn, David (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Retainers

Reexamination Certificate

active

11168483

ABSTRACT:
A slim safety umbrella runner includes a push button having a pivotal portion formed on a bottom portion of the push button and insertably engaged in a pivotal cavity formed in a bottom rim of the runner, with the push button pivotally biasing a resilient protrusion resiliently formed on a runner sleeve of an umbrella central shaft, whereby upon a depression of the push button to disengage the runner from the resilient protrusion, the runner will be lowered for closing the runner.

REFERENCES:
patent: 196586 (1877-10-01), Knapp
patent: 1513655 (1924-10-01), Turner
patent: 2136569 (1938-11-01), Trimpi
patent: 3156249 (1964-11-01), Biderman
patent: 6006771 (1999-12-01), Wu
patent: 6192907 (2001-02-01), Wu
patent: 6371141 (2002-04-01), Lin et al.
patent: 6394115 (2002-05-01), Tsun
patent: 6539964 (2003-04-01), Ko
patent: 6571813 (2003-06-01), Lin et al.
patent: 6810895 (2004-11-01), Lin et al.
patent: 6918399 (2005-07-01), Ko
patent: 2002/0179130 (2002-12-01), Ko
patent: 2004/0011394 (2004-01-01), Lin et al.

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