Fluid reaction surfaces (i.e. – impellers) – With illumination means
Patent
1994-08-15
1996-02-06
Bertsch, Richard A.
Fluid reaction surfaces (i.e., impellers)
With illumination means
417360, 41742314, 4174238, F04D 2964
Patent
active
054891914
ABSTRACT:
A motor cover for ceiling fan comprises a predetermined number of flange fixed holes which are arranged concentrically and spaced equidistantly for mounting thereto four or five fan blades so that all portions of the motor cover are similar in weight and centrifugal force to one another, and that the motor cover is stable and quiet when in operation.
REFERENCES:
patent: D265502 (1982-07-01), Kearnes
patent: D270563 (1983-09-01), Phillips
patent: D285720 (1986-09-01), Markwardt
patent: 4511310 (1985-04-01), Pearce
patent: 4863346 (1989-09-01), Lin
Bertsch Richard A.
Wicker William
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