US Patent No: 6,159,318

Number of patents in Portfolio can not be more than 2000

Method for forming fibrous filter media, filter units and product

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A method, apparatus and filter unit product wherein filter media fibers are fed from a media supply source to a mat forming interchangeable and movable contoured surface to contour shape a filter media mat into a preselected form for subsequent movement to a transfer zone for further contour shaping and processing into filter unit products with preselected frame arrangements.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AAF INTERNATIONALLOUISVILLE, KY26

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Kyung-Ju Louisville, KY 57 321

Cited Art

Patent Info (Count) # Cites Year
 
AAF INTERNATIONAL (1)
5,725,812 Melt blowing apparatus and method for forming a fibrous layered web of filter media including a fluid distribution arrangement 13 1996
 
AKZONA INCORPORATED (1)
RE31599 Low density matting and process 22 1981
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
5,643,653 Shaped nonwoven fabric 50 1995
 
REIFENHAUSER GMBH & CO. MASCHINENFABRIK (1)
4,936,934 Process and apparatus for collecting nonwoven web 11 1988
 
TORAY INDUSTRIES, INC. (1)
4,656,081 Smooth nonwoven sheet 35 1984

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
AAF-MCQUAY INC. (7)
6,736,914 Series arrangement for forming layered fibrous mat of differing fibers and controlled surfaces 0 2001
6,758,878 Thermobondable filter medium and border frame and method of making same 7 2002
7,097,684 Method of forming combined pleated scrim and filter media materials and product of same 4 2002
7,112,255 Thermobondable filter medium and border frame and method of making same 2 2003
7,661,540 Method of forming spaced pleated filter material and product of same 0 2003
7,255,723 Crest supported filter frame assembly and method 11 2004
7,625,418 Spacer arrangement for pleated filter 1 2005
 
3M INNOVATIVE PROPERTIES COMPANY (1)
7,217,333 Method of making self-supporting pleated filter 5 2002
 
CLARCOR AIR FILTRATION PRODUCTS, INC. (1)
7,537,632 Panel filter with frame 3 2006
 
CUMMINS FILTRATION IP, INC. (1)
8,272,418 Apparatus, system, and method for manufacturing irregularly shaped panel filters 0 2007
 
FILTRATION GROUP, INC. (1)
7,156,891 Forced air system air filter 13 2004