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US 6,390,107 B1Granted
Double-story umbrella
AssigneeFu Tai Umbrella Works, Ltd.
InventorsChung-Kuang Lin, Jung-Jen Chang
Life of this patent
Estimating the term…
Abstract
A double-story umbrella includes an upper umbrella, and a lower umbrella detachably coupled with the upper umbrella and operatively opened to be a beach umbrella or a big umbrella having large shielding area; whereby upon uncoupling of the upper and lower umbrellas, each umbrella can be folded to have a short folding length for a convenient handling and storage when the umbrella is folded.
Claims20
A double-story umbrella comprising:
- an upper umbrella including an upper shaft and an upper rib assembly pivotally secured to said upper shaft having an upper umbrella cloth secured on said upper rib assembly;
- and
- a lower umbrella detachably coupled with said upper umbrella, and includes a lower shaft and a lower rib assembly pivotally secured to said lower shaft having a lower umbrella cloth secured on said lower rib assembly, with said lower shaft connected to and positioned under said upper shaft upon coupling of said upper umbrella on said lower umbrella;
- whereby upon opening of said upper and lower umbrellas, a double-story umbrella is formed;
- and upon detachment of said upper umbrella from said lower umbrella, said upper and lower umbrellas are each folded for convenient handling and storage.
2 more elements
Dependencies are inferred from the claim text.