Dual-zoned absorbent webs

Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C604S385101, C604S385010, C156S209000, C156S245000, C428S131000, C162S109000

Reexamination Certificate

active

06911573

ABSTRACT:
The present invention is a method for producing an absorbent article. A wet resillient, cellulosic basesheet having elevated and depressed regions with an Overall Surface Depth of at least 0.2 mm is prepared. The cellulosic basesheet has an upper surface and a lower surface. A contiguous, fibrous nonwoven web having a plurality of openings is integrally attached onto the upper surface of the cellulosic basesheet such that a portion of the openings are superposed over the depressed regions of the cellulosic basesheet. An absorbent core and an impervious web are attached to the lower surface of the cellulosic basesheet such that the absorbent core is sandwiched between the impervious web and the cellulosic basesheet.

REFERENCES:
patent: 2391621 (1945-12-01), Powell, III et al.
patent: 2576914 (1951-12-01), Barrett
patent: 3020178 (1962-02-01), Sweeney et al.
patent: 3165485 (1965-01-01), Ilnyckyj
patent: 3224926 (1965-12-01), Bernardin
patent: 3287149 (1966-11-01), Dooley et al.
patent: 3339550 (1967-09-01), Van Haaften
patent: 3417040 (1968-12-01), Kremer
patent: 3455778 (1969-07-01), Bernardin
patent: 3485706 (1969-12-01), Evans
patent: 3489148 (1970-01-01), Duncan et al.
patent: 3494821 (1970-02-01), Evans
patent: 3520542 (1970-07-01), Crean
patent: 3556932 (1971-01-01), Coscia et al.
patent: 3556933 (1971-01-01), Williams et al.
patent: 3629171 (1971-12-01), Kremer et al.
patent: 3695269 (1972-10-01), Malaney
patent: 3700623 (1972-10-01), Keim
patent: 3765997 (1973-10-01), Dunning
patent: 3772076 (1973-11-01), Keim
patent: 3809089 (1974-05-01), Hedstrom et al.
patent: 3812000 (1974-05-01), Salvucci, Jr. et al.
patent: 3838692 (1974-10-01), Levesque
patent: 3881987 (1975-05-01), Benz
patent: 3885158 (1975-05-01), Flutie et al.
patent: 3899388 (1975-08-01), Petrovich et al.
patent: 3929135 (1975-12-01), Thompson
patent: 3967623 (1976-07-01), Butterworth et al.
patent: 3976734 (1976-08-01), Dunning et al.
patent: 4041951 (1977-08-01), Sanford
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4113911 (1978-09-01), LaFitte et al.
patent: 4117199 (1978-09-01), Gotoh et al.
patent: 4129528 (1978-12-01), Petrovich et al.
patent: 4147586 (1979-04-01), Petrovich et al.
patent: 4208459 (1980-06-01), Becker et al.
patent: 4222921 (1980-09-01), Van Eenam
patent: 4342314 (1982-08-01), Radel et al.
patent: 4391869 (1983-07-01), Cook et al.
patent: 4425130 (1984-01-01), DesMarais
patent: 4445970 (1984-05-01), Post et al.
patent: 4524474 (1985-06-01), Svensson
patent: 4556450 (1985-12-01), Chuang et al.
patent: 4588457 (1986-05-01), Crenshaw et al.
patent: 4610915 (1986-09-01), Crenshaw et al.
patent: 4626254 (1986-12-01), Widlund et al.
patent: 4675394 (1987-06-01), Solarek et al.
patent: 4725473 (1988-02-01), Van Gompel et al.
patent: 4741941 (1988-05-01), Englebert et al.
patent: 4781710 (1988-11-01), Megison et al.
patent: 4879170 (1989-11-01), Radwanski et al.
patent: 4929495 (1990-05-01), Stanislawczyk
patent: 4931355 (1990-06-01), Radwanski et al.
patent: 4981557 (1991-01-01), Bjorkquist
patent: 5008344 (1991-04-01), Bjorkquist
patent: 5011864 (1991-04-01), Nielsen et al.
patent: 5048589 (1991-09-01), Cook et al.
patent: 5069548 (1991-12-01), Boehnlein
patent: 5085736 (1992-02-01), Bjorkquist
patent: 5156902 (1992-10-01), Pieper et al.
patent: 5188625 (1993-02-01), Van Iten et al.
patent: 5230776 (1993-07-01), Andersson et al.
patent: 5246545 (1993-09-01), Ampulski et al.
patent: 5302382 (1994-04-01), Kasprzak
patent: 5348620 (1994-09-01), Hermans et al.
patent: 5368910 (1994-11-01), Langdon
patent: 5389202 (1995-02-01), Everhart et al.
patent: 5399412 (1995-03-01), Sudall et al.
patent: 5411636 (1995-05-01), Hermans et al.
patent: 5423788 (1995-06-01), Rollins et al.
patent: 5429686 (1995-07-01), Chiu et al.
patent: 5431643 (1995-07-01), Ouellette et al.
patent: 5437653 (1995-08-01), Gilman et al.
patent: 5454801 (1995-10-01), Lauritzen
patent: 5478335 (1995-12-01), Colbert
patent: 5491190 (1996-02-01), Sandvick et al.
patent: 5492598 (1996-02-01), Hermans et al.
patent: 5501768 (1996-03-01), Hermans et al.
patent: 5516572 (1996-05-01), Roe
patent: 5536555 (1996-07-01), Zelazoski et al.
patent: 5552020 (1996-09-01), Smith et al.
patent: 5562645 (1996-10-01), Tanzer et al.
patent: 5591306 (1997-01-01), Kaun
patent: 5591309 (1997-01-01), Rugowski et al.
patent: 5598643 (1997-02-01), Chuang et al.
patent: 5601871 (1997-02-01), Krzysik
patent: 5635191 (1997-06-01), Roe et al.
patent: 5653930 (1997-08-01), Noda et al.
patent: 5667636 (1997-09-01), Engel et al.
patent: 5670110 (1997-09-01), Dirk et al.
patent: 5763044 (1998-06-01), Ahr et al.
patent: 5779860 (1998-07-01), Hollenberg et al.
patent: 5840403 (1998-11-01), Trokhan et al.
patent: 5990377 (1999-11-01), Chen et al.
patent: 6242074 (2001-06-01), Thomas
patent: 2002/0099347 (2002-07-01), Chen et al.
patent: 2002/0103469 (2002-08-01), Chen et al.
patent: 0 353 972 (1994-01-01), None
patent: 0 677 612 (2000-09-01), None
patent: 3-185 197 (1991-08-01), None
patent: WO 95/13773 (1995-05-01), None
patent: WO 95/13774 (1995-05-01), None
patent: WO 97/18784 (1997-05-01), None
patent: WO 97/48854 (1997-12-01), None
Derwent World Patent Database abstract of GB 1,593,331: Description of Kemi Oy, “Water Resistant Paper And Board.”
AATCC Test Method 66-1990, Technical Manual of the American Association of Textile Chemists and Colorists, 1995, pp. 99-100.
Adams, Kurt L., Bernard Miller, and Ludwig Rebenfeld, “Forced In-Plane Flow of an Epoxy Resin in Fibrous Networks,”Polymer Engineering And Science, Mid-Nov., 1986, vol. 26, No. 20, pp. 1434-1441.
Back, Ernst L., “The Pore Anisotrophy of Paper Products and Fibre Building Boards,”Svensk Papperstidning arg. 69, Nr. 7, Apr. 15, 1966, pp. 219-224.
Bear, Jacob, “Dynamics of Fluids in Porus Media,” American Elsevier, New York, NY, 1972, pp. 136-151.
Bieman, Leonard H., Kevin G. Harding, and Albert Boehnlein, “Absolute Measurement Using Field Shifted Moiré´,”SPIE Optical Conference Proceedings, Nov. 1991, vol. 1614, pp. 259-264.
Bowden, Edward V., “Non-Contact Drying and Turning—the ‘On Machine’ Technology of the Nineties,”Appita, vol. 44, No. 1, Jan. 1991, pp. 41-46.
Cadeyes Product Guide, Medar, Inc., Farmington Hills, MI, 1994, pp. 1-19.
Dullien, F. A. L., “Porous Media: Fluid Transport and Pore Structure,” Academic Press, New York, 1979, pp. 78-83.
Horstmann, Diane H., Jeffrey D. Lindsay, and Robert A. Stratton, “Using Edge-Flow Tests to Examine the In-Plane Anisotropic Permeability of Paper,”Tappi Journal, 74(4), Apr. 1991, pp. 241-247.
Lindsay, Jeffrey D. and Jill R. Walin, “Characterization of In-Plane Fluid Flow in Paper,”AIChE Proceedings 1989 and 1990 Forest Products Symposium, Tappi Press, Atlanta, GA, 1992, pp. 121-129.
Lindsay, Jeffrey D., “Displacement Dewatering To Maintain Bulk,”Paperi Ja Puu—Paper And Timber, vol. 74, No. 3, 1992, pp. 232-242.
Lindsay, Jeffrey D. and Paul H. Brady, “Studies of Anisotropic Permeability With Applications to Water Removal in Fibrous Webs: Part 1,”Tappi Journal, vol. 76, No. 9, Sep. 1993, pp. 119-125.
Lindsay, Jeffrey D. and Paul H. Brady,“Studies of Anisotropic Permeability With Applications to Water Removal in Fibrous Webs: Part 2,”Tappi Journal, vol. 76, No. 11, Nov. 1993, pp. 167-174.
Lindsay, Jeffrey D., “Relative Flow Porosity in Fibrous Media: Measurements and Analysis, Including Dispersion Effects,”Tappi Journal, vol. 77, No. 6, Jun. 1994, pp. 225-239.
Mummery, Leigh, “Surface Texture Analysis: The Handbook,” Hommelwerke GmbH, Muhlhausen, Germany, 1990, pp. 28-29.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Dual-zoned absorbent webs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual-zoned absorbent webs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-zoned absorbent webs will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3468550

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.