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US 2011/0214705 A1Published application
Hubs for shade structures
AssigneeOliver Joen-an Ma
InventorOliver Joen-an Ma
Life of this patent
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Abstract
A shade structure is provided, such as an umbrella, particularly a large free-standing umbrella, which can have a variable geometry. In some embodiments, the umbrella can comprise multiple sets of ribs supporting a canopy structure and having a mechanism associated with each set of ribs for influencing the angle or elevation of the rib sets.
Claims10
An umbrella comprising:
- a support pole;
- a first hub attached to the support pole and having a plurality of ribs extending from the hub, the ribs supporting a canopy and being movable from a stowed position in which the canopy is substantially closed to an extended position in which the canopy is substantially open;
- at least one additional hub extending around the support pole at a location below the first hub, the additional hub comprising:
- a first hub component having a plurality of ribs extending therefrom;
- at least one other hub component having a plurality of ribs extending therefrom;
- the first and other hub components being movable with respect to each other from a position in which they are nested or embedded together to another position in which they are separated from one another.
3 more elements
Dependencies are inferred from the claim text.