Umbrella system

An umbrella system includes a support pole connected to a rotating tube positioned around a center tube that extends between the support pole and a center support that is connected to an umbrella frame. The rotating tube has one or more helical grooves therein that are engaged by teeth of a hub whic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Foreman, John, Scott, Curtis, Hand, Richard Scott, Dry, Jonathan Derrick, Smidt, Jon, Scalf, Sean, Mullet, Willis Jay
Format:	Patent
Sprache:	eng
Schlagworte:	HAND OR TRAVELLING ARTICLES HUMAN NECESSITIES LADIES' OR LIKE FANS UMBRELLAS WALKING STICKS
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Beschreibung
Zusammenfassung:	An umbrella system includes a support pole connected to a rotating tube positioned around a center tube that extends between the support pole and a center support that is connected to an umbrella frame. The rotating tube has one or more helical grooves therein that are engaged by teeth of a hub which is connected to the umbrella frame. As the rotating tube is rotated, the hub is driven along the length of the rotating tube thereby opening and closing the umbrella frame. In one arrangement system includes a motor housing assembly including a plurality of batteries and a motor that includes a driven gear that meshes with a stationary gear which causes rotation of the rotating tube.