Manual-opened and auto-closed umbrella

Details Manual-opened and auto-closed umbrella Manual-opened and auto-closed umbrella

2008-07-22

2008-07-22

Dunn, David R (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

C135S024000, C135S020300, C135S025400

Reexamination Certificate

active

07401615

ABSTRACT:
The invention relates to a manual-opened and auto-closed umbrella, which utilizes two springs provided around a shaft and therein accompanying with a runner and a frame to control the umbrella being opened manually and closed automatically. The umbrella is to be opened manually that compresses the springs at the same time, and by a touch to automatically close the umbrella. The manual-opened and auto-closed umbrella therefore obtains a certain utilization and improvement.

REFERENCES:
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patent: 6817371 (2004-11-01), Lin et al.
patent: 2004/0221884 (2004-11-01), Yang
patent: 2005/0257817 (2005-11-01), Kuo
patent: 2007/0017561 (2007-01-01), Kuo
patent: 2007/0131263 (2007-06-01), Kuo

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