Method of preparing paper for filter bags, apparatus for implementing the method, and product obtained thereby

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5527429
SERIAL NO

08061271

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of preparing paper for filter bags, the method of the type comprising a step during which a non-woven paper is prepared comprising two superposed layers, namely a layer based on synthetic fibers and a layer of cellulose fibers, by a technique which is known per se, wherein the method includes a subsequent step of subjecting the non-woven paper to a calendering operation between a support structure and a heated cylinder having projections. The present invention also provides apparatus for implementing the method and products obtained in this manner.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Papeteries de CascadecERGUE GABERIC0

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dambreville, Abel Rosporden, FR 1 11
Deleplanque, Philippe Quimper, FR 2 36
Le, Brech Yves Scaer, FR 3 13
Le, Fol Roger Quimper, FR 1 11

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SIEMENS HEALTHCARE DIAGNOSTICS INC. (1)
8101429 Native analyte as a reference in lateral flow assays 2 2004
 
Unicon Papier und Kanststoffhandel sgesellschaft mbH (1)
* 5173154 Heat sealable tea bag paper and process of producing same 13 1991
 
PERSONAL PRODUCTS COMPANY (1)
* 4590114 Stabilized absorbent structure containing thermoplastic fibers 65 1984
 
PAPER-PAK INDUSTRIES (1)
* 4770920 Lamination anchoring method and product thereof 25 1986
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Firma Carl Freudenberg (2)
* 6045595 Dust filter bag 11 1998
* 6193773 Dust filter bag 27 1999
 
KIMBERLY-CLARK WORLDWIDE, INC. (12)
D390363 Embossed tissue 20 1997
6398910 Decorative wet molding fabric for tissue making 35 2000
6610619 Patterned felts for bulk and visual aesthetic development of a tissue basesheet 3 2000
6821385 Method of manufacture of tissue products having visually discernable background texture regions bordered by curvilinear decorative elements using fabrics comprising nonwoven elements 40 2001
6790314 Fabric for use in the manufacture of tissue products having visually discernable background texture regions bordered by curvilinear decorative elements and method thereof 44 2001
6787000 Fabric comprising nonwoven elements for use in the manufacture of tissue products having visually discernable background texture regions bordered by curvilinear decorative elements and method thereof 45 2001
6749719 Method of manufacture tissue products having visually discernable background texture regions bordered by curvilinear decorative elements 25 2001
* 2003/0085,011 Method of manufacture tissue products having visually discernable background texture regions bordered by curvilinear decorative elements 1 2001
6746570 Absorbent tissue products having visually discernable background texture 37 2002
* 2003/0136,529 Absorbent tissue products having visually discernable background texture 2 2002
7320743 Method of making a tissue basesheet 14 2003
* 2005/0087,316 Patterned felts for bulk and visual aesthetic development of a tissue basesheet 0 2003
* Cited By Examiner