Reduced solidity web comprising fiber and fiber spacer or separation means

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United States of America Patent

PATENT NO 7717975
APP PUB NO 20060230731A1
SERIAL NO

11354301

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A web can comprise a substantially continuous fiber mass and a separation means dispersed into the fiber. The web having a preferred thickness resulting from forming a polymer material and a particulate into a fine fiber layer can have a variety of end uses. A filtration media can include a structure comprising such a web of fine fiber and a substantial volume of particulate embodiment of the separation means. The resulting fine fiber structure provides an improved filtration medium having substantial depth, thickness, and a layered structure. The improved properties of the web results from inclusion of the separation or spacer particulate.

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Patent Owner(s)

  • DONALDSON COMPANY, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crofoot, Douglas G Burnsville, US 24 2063
Grafe, Timothy H Edina, US 15 755
Graham, Kristine M Minnetonka, US 12 762
Kalayci, Veli E Farmington, US 16 556

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