Tent – canopy – umbrella – or cane – Umbrella – Cover or lining feature
Reexamination Certificate
2000-03-01
2001-08-21
Stephan, Beth A. (Department: 3635)
Tent, canopy, umbrella, or cane
Umbrella
Cover or lining feature
C135S031000, C135S033200
Reexamination Certificate
active
06276380
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The inventive device relates to special kinds of umbrella that can cope with strong wind.
2. Description of the Related Art
It is known that there has been a kind of umbrella which is designed to allow its cover to be inverted upward when a strong wind acts thereon and the umbrella is restored to its normally closed condition by simply pulling the runner downwardly along the shaft.
This kind of umbrella is sold under the trademark “WINDFLEX umbrella” in the market place.
There is another kind of umbrella which is designed to prevent its cover from being inverted even when a strong wind acts thereon. Such umbrella is generally sold under the trademark “WINDLOCK umbrella”.
The schematic representation of the aforesaid WINDFLEX umbrella and WINDLOCK umbrella are exhibited in FIG.
1
and
FIG. 2
, respectively.
One shortcoming of the WINDFLEX umbrella is that its cover is easily inverted, whereas in the WINDLOCK umbrella a strong friction occurs, as shown in
FIG. 2
, along the contacting faces between its holder cords (D-E) and stretchers (B-C) when opening and closing the umbrella, due to the arrangement of all points A, B, C and E being on the same plane.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide improved versions of both the WINDFLEX and WINDLOCK type umbrellas to eliminate the above mentioned shortcomings.
Another object of the invention is to provide a new model of a runner and a catch for umbrellas of the type having a cover attached to a shaft by means of a stretcher and rib arrangement and a spring loaded upper catch on the shaft for securing the umbrella in its open position on the runner.
The invention will now be described with reference to the accompanying drawings wherein the same numeral represents the same element throughout the text.
REFERENCES:
patent: 4934394 (1990-06-01), Hermanson
patent: 6006770 (1999-12-01), Lin
patent: 6173724 (2001-01-01), You
Bacon & Thomas PLLC
Stephan Beth A.
LandOfFree
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