Economic double-story umbrella as conveniently anchored

Details Economic double-story umbrella as conveniently anchored Economic double-story umbrella as conveniently anchored

2001-06-12

2003-09-02

Mai, Lanna (Department: 3637)

Tent, canopy, umbrella, or cane

Umbrella

Cover or lining feature

C135S033700, C135S098000, C248S171000, C248S156000, C248S545000

Reexamination Certificate

active

06612320

ABSTRACT:

BACKGROUND OF THE INVENTION
The prior application disclosed a double-story umbrella having an upper umbrella cloth
3
and a lower umbrella cloth
3
′ coupled each other by a plurality of buckling means
5
a
. However, there is not provided with any automatic restoring mechanism for automatically closing the upper umbrella cloth
3
on the lower umbrella cloth
3
′ whenever a strong wind is gone.
Meanwhile, the prior application did not disclose a supporting means for anchoring the central shaft of the umbrella on a ground.
The present inventor has found the drawbacks of the prior application and invented the present double-story umbrella which is conveniently anchored.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a double-story umbrella including an upper umbrella formed by an upper umbrella cloth; a lower umbrella having a shaft and a rib assembly pivotally secured to the shaft for securing a lower umbrella cloth on the rib assembly; a plurality of detachable restorable buckling devices each coupling the upper umbrella cloth with the lower umbrella cloth; and a supporting device adjustably detachably secured on a lower portion of the shaft and operatively anchored on or under a ground for stably erecting the shaft and the double-story umbrella.


REFERENCES:
patent: 369493 (1887-09-01), Averill
patent: 1525701 (1925-02-01), Rose et al.
patent: 4753411 (1988-06-01), Lechner et al.
patent: 5078166 (1992-01-01), Lee
patent: 5137236 (1992-08-01), Burns
patent: 5293889 (1994-03-01), Hall et al.
patent: 5368055 (1994-11-01), Johnson et al.
patent: 6089244 (2000-07-01), Ko
patent: 6173724 (2001-01-01), You
patent: 2664137 (1992-10-01), None

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