US Patent No: 6,017,191
Number of patents in Portfolio can not be more than 2000
Axial ventilator housing
Stats
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Jan 25, 2000
Issued date -
Dec 9, 1997
filing date -
08/987,438
serial no -
In Force
status
Importance
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Abstract
This invention relates to an axial fan housing having a metallic shielding grating covering an air passage opening, wherein the grating is formed with a series of vane-like guide bars arranged in two or more concentric circular series. The number of guide bars in each circular concentric series increases from the radially inner series to the radially outer series of guide bars.
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First Claim
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,460,571 Electro-magnetically shielded ventilation system | 13 | 1994 | |
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| 5,391,056 Tri-pod portable fan | 7 | 1993 | |
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| 5,498,130 Cooling fan mounting system | 13 | 1994 | |
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| 5,460,485 Blower with an improved shroud assembly | 24 | 1994 | |
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| 5,695,318 Diagonal fan | 15 | 1996 | |
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| 5,577,888 High efficiency, low-noise, axial fan assembly | 37 | 1995 | |
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| 4,761,115 Axial-flow fan | 12 | 1986 | |
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| 5,259,726 Rotating fan guard | 12 | 1992 | |
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| 5,601,412 Variable size circular fan guard | 6 | 1995 | |