Axial flow ring fan

United States of America Patent

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Feb 13, 1990
Grant Date
N/A
app pub date
May 30, 1989
filing date
May 30, 1989

priority date (Note)
Expired

status (Latency Note)

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Abstract

An axial flow ring fan has improved efficiency and reduced noise by making the leading edge of each blade a generally sinusoidal shape.

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Patent Owner(s)

Patent Owner	Address
SIEMENS-BENDIX AUTOMOTIVE ELECTRONICS LIMITED	Not Provided

International Classification(s)

F04D:NON-POSITIVE-DISPLACEMENT PUMPS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brackett, Stephen E	Blenheim, CA	14	230
Charles, Herbert N	Chatham, CA	14	170

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Axial flow ring fan

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07359241

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Patent Longevity Expired	Forward Citations

PATENT NO	4900229
SERIAL NO	07359241
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07359241

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