Axial-flow fan
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 1988
Grant Date -
N/A
app pub date -
Dec 17, 1986
filing date -
Mar 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frame-supported fan in which the mounting portions between the motor and the frame are formed in the shape of an arrowhead and/or are provided with sculptured edges extending to the frame or are provided with interfering bodies mounted to the outer ends of the edges of the frame, so as to reduce unwanted noise by producing non-uniform flow separation in the air stream through the fan.
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International Classification(s)
Cited Art Landscape
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