Tent – canopy – umbrella – or cane – Umbrella – Retainers
Reexamination Certificate
1999-08-10
2001-06-19
Canfield, Robert (Department: 3635)
Tent, canopy, umbrella, or cane
Umbrella
Retainers
C135S028000, C135S020300
Reexamination Certificate
active
06247483
ABSTRACT:
CROSS-REFERENCES TO RELATED APPLICATIONS
Not Applicable.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a beach umbrella, and more particularly, to an improved beach umbrella whose hollow shaft has an automatic locking and release device.
2. Description of the Related Art
A conventional beach umbrella comprises a hollow shaft with a hook or a pin to hold a runner of the beach umbrella when the beach umbrella is opened. One must push down the hook or pull out the pin to release and close the beach umbrella.
The beach umbrella is always bigger and taller than an ordinary umbrella, so it is not very convenient to open and close. Men often stand on a chair or a table to open or close the beach umbrella It is so dangerous and inconvenient.
The present invention has arisen to mitigate and obviate the disadvantage of the conventional beach umbrella.
BRIEF SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided an automatic locking and release device for a beach umbrella comprises a hollow shaft containing a first opening and a second opening thereon.
A lever is pivotally mounted in the hollow shaft and has a lug extending through the first opening and a flat head abutting a button on a locking bar.
A base member is securely received in the upper portion of the hollow shaft. A fastener is attached to the base member to define a chamber and movably receiving a locking member therein.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 2937653 (1960-05-01), Danciart et al.
patent: 3419026 (1968-12-01), Evans, Jr. et al.
patent: 4567907 (1986-02-01), Dubinsky
patent: 5161562 (1992-11-01), Wu
patent: 5357994 (1994-10-01), Chung
patent: 5588455 (1996-12-01), Kuo
patent: 5615698 (1997-04-01), Ko
patent: 5690132 (1997-11-01), Lin et al.
patent: 669727 (1964-10-01), None
Canfield Robert
Kolisch Hartwell Dickinson & McCormack & Heuser
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