Tent – canopy – umbrella – or cane – Umbrella – Combined
Patent
1989-07-13
1991-04-16
Fox, John C.
Tent, canopy, umbrella, or cane
Umbrella
Combined
74421A, 74606R, A45B 2300
Patent
active
050078119
ABSTRACT:
An electric fan is provided for mounting on and about a shaft, including the shaft of a patio umbrella. A rotatable drive ring wherein the shaft is positionable perpendicular to and extending through the drive ring is rotated by an electric motor fixedly positionable adjacent the shaft. A gear or belt drive system preferably couples the rotatable motor shaft to the drive ring and a support system, preferably including a plurality of bearings, supports the drive ring and fan assembly. A support brace and collar are provided to attach to the shaft and support the support system. The electric fan provided is mountable to a patio umbrella or other shaft even after construction of the umbrella or other shaft.
REFERENCES:
patent: 1148332 (1915-07-01), Onyskow
patent: 2547896 (1951-04-01), Wellen
patent: 2627217 (1953-02-01), Hainke et al.
patent: 2729220 (1956-01-01), Smyrnow
patent: 2817281 (1957-12-01), Schwan et al.
patent: 3177881 (1965-04-01), Covington
patent: 3444799 (1969-05-01), Covington
patent: 3739792 (1973-06-01), Holland
patent: 4848385 (1989-07-01), Pennella
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