Pumps – Transversely movable impelling member
Patent
1997-12-31
2000-04-18
Freay, Charles G.
Pumps
Transversely movable impelling member
4174236, 417481, 416100, 416169R, F04B 1900
Patent
active
06050790&
ABSTRACT:
An electric waving fan includes a single air moving fan vane element, a motor for generating power, a transmission apparatus for converting the power to motion, and a power output assembly for moving the single fan vane element simultaneously in two directions such that the fan vane element moves with a waving motion. The fan further includes a base and a wrist assembly that can be moved in two directions relative to the base which can be mounted on a wall, on the floor or desk, or hang from the ceiling.
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Tom Frampton, Punkah Wall Fan Assembly, Dec. 1981, 9 pages. (www.fanimation.com/punkah-w.html).
Chan Raymond Y.
Evora Robert Z.
Freay Charles G.
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