Intake grill for electric fan assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 2, 1992
Grant Date -
N/A
app pub date -
May 24, 1990
filing date -
May 24, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The noise of operation of a fan assembly having a fan blade which rotates in a predetermined direction upon operation of the fan assembly may be reduced by the use of an intake grill including an inner central portion, ring elements disposed in mutually spaced, concentric relation to one another about the central portion, and spirallly-extending support elements connected to the central portion and to the ring elements. The intake grill further includes mutually circumferentially-spaced finger elements connected to and projecting away from a grill mounting surface which are also connected to the outermost ring element and thereby support the interconnected ring elements, central portion, and support elements in spaced relation to the grill mounting surface. Stiffening elements may be disposed between adjacent support elements and connected to selected adajcent ones of the ring elements.
First Claim
Family
International Classification(s)
Cited Art Landscape
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