|Publication number||US3884234 A|
|Publication date||May 20, 1975|
|Filing date||Oct 18, 1973|
|Priority date||Oct 18, 1973|
|Also published as||CA1057453A1, DE2448752A1, DE2448752C2|
|Publication number||US 3884234 A, US 3884234A, US-A-3884234, US3884234 A, US3884234A|
|Inventors||Glenn N Taylor|
|Original Assignee||Colgate Palmolive Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (38), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1 United States Patent 1191 1111 3,884,234 Taylor May 20, 1975  DI SPOSABLE DIAPER 3,710,797 1/1973 Marsan 128/284 3,776,233 12/1973 Schaar 128/287  Inventor: Glen" Tayh" Cary 3,807,402 4/1974 Miller et 111. 128/287  Assignee: Colgate-Palmolive Company, New
York, NY. Primary ExaminerRichard A. Gaudet  Filed: Oct 18 1973 Assistant Examiner-J. Yasko  App1. No.: 407,531 ABSTRACT A diaper is provided in which, with respect to a fold line extending from the from waistline p rt on to the  Fie'ld 286 284 back waistline portion equidistant from the diaper latera] margins, a portion of the surface for contact with the diaper wearer on one side of the fold line is se-  References Clted cured to a portion of that surface on the side of the UNITED STATES PATENTS fold line, those first and second portions being sym- 3,402,715 9/1968 Liloia 611 a] 128/287 metrically located with respect to the line 3,572,342 3/1971 Lindquist et a1 128/287 3,650,273 3/1972 Schaar 128/287 7 Claims, 2 Drawing Figures DISPOSABLE DIAPER BACKGROUND OF THE INVENTION This invention relates to diapers, the inventive fea tures being particularly suitable for incorporation into disposable diapers.
SUMMARY OF THE INVENTION It is a principal object of the present invention to provide a diaper construction that fits well in the crotch region of the diaper, will accept a surge of liquid without leakage, and prevents, to a degree, fecal matter from moving about within the diaper.
The features of the present invention are incorporated in a diaper having front and back waistline portions, a crotch portion therebetween, lateral margins extending between the waistline portions, and a surface for contact with the diaper wearer. In such a diaper a fold line is provided extending from the front waistline portion to the back waistline portion equidistant from the lateral margins. According to the present invention, with respect to that fold line a first portion of the above-mentioned surface on one side of the fold line is, secured to a second portion of that surface on the other side of the line, said surface portions being symmetrically located with respect to the reference line. Each such surface portion is in the form of a line extending from a location adjacent the fold line, toward a lateral margin. In preferred embodiments those surface portions are secured by adhesive, and each line comprises an arc, the tangent to the arc at any predetermined point thereof making an angle with the fold line which is at least as great as the angle made by the tangent of any other point of the are closer to the fold line.
BRIEF DESCRIPTION OF THE DRAWINGS DETAILED DESCRIPTION OF A PARTICULAR PREFERRED EMBODIMENT Referring to the drawings, a disposable diaper comprises an absorbent body 12 and a water impervious backing sheet 14, such as plastic. The sheet 14 overlaps the upper surface of the absorbent body 12 with flaps 16, 18 which define lateral margins 20, 22of the diaper. The flaps 16, 18 are secured (as by heat sealing) to the absorbent body 12 and to the underlying portion of the plastic sheet 14 in the front and back waistline portions 24, 26. Conventional tape units 28 may be provided for securing thediaper to the infant. A central fold line A extends from the front waistline portion 24 throughthe central crotch region 30 to the back waistline portion 26 and equidistant from the lateral margins 20, 22. A reference line B may be considered drawn perpendicular to fold line A and equidistant from the front and back waistline portions 24, 26.
According to the present invention, portions of the upper surface of the absorbent body 12 (which typically comprises a non-woven liner which overlies the bulk of the absorbent material) on one side of the fold line A are secured to portions of that surface on the opposite side of fold line A, the two portions being symmetrically located with respect to the reference line A. In the preferred form, these surface portions comprise elongated arcs which extend from a first location 32 adjacent the fold line A and on the front waistline portion side of reference line B to a second location 34 which is both further from reference line A and from front waistline 24 than is first location 32. In FIG. 1, the surface portion on the right side of the reference line A is indicated by the elongated are 36 which extends between locations 32 and 34 and intersects reference line B. The location 34 is preferably about equidistant from the fold line A and the lateral margin 22.
In the preferred form of the invention, the are 36 may simply be the locus of a line of glue applied to the upper surface of the absorbent body 12. The folding of the diaper about the line A while the glue retains tack, will result in the securing of the surface portion which the glue overlies to the symmetrically disposed surface portion on the opposite side of the fold line A. In one particularly preferredform, shown in FIG. 1, the arc 36 is in the form of a quadrant of a circle with the tangent at the location (i.e., location 32) being substantially tangent to the reference line A.
FIG. 2 illustrates the configuration of the completed diaper 10 after the diaper has been unfolded for application to the infant. The glue line 36 now overlies the fold line A and the diaper is no longer confined to a plane. This results in a gathering of the absorbent material in the crotch portion of the diaper with an attendant increase in absorbent capacity for a surge of fluid. Furthermore, this causes the diaper to assume a tapered configuration in the crotch region to assure a better fit of the diaper on the infant. Additionally, a pocket 38, which can limit the movement of fecal matter within the diaper, is formed in the rear portion of the diaper.
While a particular preferred embodiment of the invention has been illustrated in the accompanying drawings and described in detail, other embodiments are within the scope of the invention and the following claims.
1. In a diaperhaving front and back waistline portions, a crotch portion therebetween, lateral margins extending between said waistline portions, and a surface for contact with the wearer, the improvement wherein, with respect to a fold line extending between said waistline portions approximately equidistant from said lateral margins, a portion of said surface on one side of said fold line, and along a line extending toward the diaper lateral margin, is secured to a similarly disposed surface portion on the other side of said fold line thereby forming a pocket in the rear portion of the diaper. t
2. The diaper of claim 1 whereinan adhesive secures said first surface portion to said second surface portion.
3. The diaper of claim 2 wherein said adhesive is disposed uninterruptedly along said line on said surface.
4. The diaper of claim 1 wherein said line on said surface portion is in the form of an arc, the tangent to said are at any predetermined point thereof making an angle with said fold line which is at least as great as the angle made by the tangent at any other point closer than said predetermined point to said fold line.
7. The diaper of claim 1 wherein said line on said surface extends from a first location adjacent said fold line to a second location approximately equidistant from said fold line and a diaper lateral margin.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3402715 *||May 9, 1966||Sep 24, 1968||Johnson & Johnson||Diaper|
|US3572342 *||Jan 19, 1968||Mar 23, 1971||Johnson & Johnson||Diaper|
|US3650273 *||Aug 13, 1970||Mar 21, 1972||Kendall & Co||Baby panty|
|US3710797 *||Feb 26, 1971||Jan 16, 1973||Procter & Gamble||Disposable diaper|
|US3776233 *||May 17, 1971||Dec 4, 1973||Colgate Palmolive Co||Edge contourable diaper|
|US3807402 *||Oct 3, 1972||Apr 30, 1974||Procter & Gamble||Shortened side flaps for disposable diaper|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4050463 *||Aug 20, 1976||Sep 27, 1977||Colgate-Palmolive Company||Diapers|
|US4100922 *||Jul 9, 1975||Jul 18, 1978||Colgate-Palmolive Company||Disposable diaper|
|US4316465 *||Nov 29, 1979||Feb 23, 1982||Dotson Robert S Jun||Ophthalmic handpiece with pneumatically operated cutter|
|US4601717 *||Dec 6, 1984||Jul 22, 1986||The Procter & Gamble Company||Diaper with fold points|
|US5413570 *||Apr 4, 1994||May 9, 1995||Kimberly-Clark Corporation||Diapers with elasticized side pockets|
|US5415644 *||Feb 13, 1989||May 16, 1995||Kimberly-Clark Corporation||Diapers with elasticized side pockets|
|US5554142 *||Nov 30, 1994||Sep 10, 1996||The Procter & Gamble Company||Absorbent article having multiple effective height transverse partition|
|US5582606 *||May 23, 1995||Dec 10, 1996||Kimberly-Clarke Corporation||Absorbent article having dual barrier means|
|US5599338 *||May 9, 1995||Feb 4, 1997||Kimberly-Clark Corporation||Diapers with elasticized side pockets|
|US5601544 *||Dec 23, 1993||Feb 11, 1997||Kimberly-Clark Corporation||Child's training pant with elasticized shaped absorbent and method of making the same|
|US5690625 *||Dec 16, 1996||Nov 25, 1997||Molnlycke Ab||Absorbent disposable article constructed from at least two plat flexible bodies containing absorbent material, and a package of articles having s-shaped edges|
|US5895382 *||Apr 26, 1993||Apr 20, 1999||Kimberly-Clark Worldwide, Inc.||Foreshortened containment flaps in a disposable absorbent article|
|US6010490 *||Dec 18, 1992||Jan 4, 2000||The Procter & Gamble Company||Absorbent article having an upstanding transverse partition|
|US6497693 *||Mar 3, 2000||Dec 24, 2002||Uni-Charm Corporation||Disposable undergarment|
|US6666851 *||Jul 9, 2001||Dec 23, 2003||Uni-Charm Corporation||Disposable garment|
|US7318820||Mar 12, 2004||Jan 15, 2008||The Procter & Gamble Company||Simple disposable absorbent article having breathable side barriers|
|US7320684||Sep 21, 2005||Jan 22, 2008||The Procter & Gamble Company||Disposable absorbent article having deployable belt strips|
|US7377914||Jun 30, 2005||May 27, 2008||The Procter & Gamble Company||Disposable absorbent article having backsheet strips|
|US7618404||Jun 23, 2005||Nov 17, 2009||The Procter & Gamble Company||Disposable absorbent article having doubled side flaps and backsheet strips|
|US7695463||Jun 22, 2005||Apr 13, 2010||The Procter & Gamble Company||Disposable absorbent article having dual layer barrier cuff strips|
|US7736351||Feb 2, 2004||Jun 15, 2010||The Procter & Gamble Company||Simple disposable absorbent article|
|US7737324||Nov 23, 2005||Jun 15, 2010||The Procter & Gamble Company||Disposable absorbent article having deployable chassis ears|
|US7763004||May 18, 2005||Jul 27, 2010||The Procter & Gamble Company||Disposable absorbent article having layered containment pockets|
|US7857801||Mar 23, 2007||Dec 28, 2010||The Procter & Gamble Company||Diaper having deployable chassis ears and stretch waistband|
|US7931636||Aug 4, 2005||Apr 26, 2011||The Procter & Gamble Company||Simple disposable absorbent article|
|US7954170 *||Jun 6, 2008||Jun 7, 2011||Betalife Gmbh||Anti-transpiration insert|
|US8187239||May 31, 2005||May 29, 2012||The Procter & Gamble Company||Side notched folded diaper|
|US8257335||Jan 31, 2007||Sep 4, 2012||The Procter & Gamble Company||Diaper having hip stretch panels|
|US8585672||Feb 28, 2007||Nov 19, 2013||The Procter & Gamble Company||Disposable absorbent article having deployable belt ears|
|US8684988||Jun 29, 2004||Apr 1, 2014||The Procter & Gamble Company||Disposable absorbent article having barrier cuff strips|
|US8684990||Sep 12, 2005||Apr 1, 2014||The Procter & Gamble Company||Simple disposable pant-like garment having breathable side barriers|
|US8734417||Apr 19, 2011||May 27, 2014||The Procter & Gamble Company||Simple disposable absorbent article|
|US8979815||Dec 10, 2012||Mar 17, 2015||The Procter & Gamble Company||Absorbent articles with channels|
|US9060904||Jun 18, 2008||Jun 23, 2015||The Procter & Gamble Company||Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material|
|US9066838||Jun 8, 2012||Jun 30, 2015||The Procter & Gamble Company||Disposable diaper having reduced absorbent core to backsheet gluing|
|US9072634||Jun 18, 2008||Jul 7, 2015||The Procter & Gamble Company||Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method|
|US20050203475 *||Mar 12, 2004||Sep 15, 2005||The Procter & Gamble Company||Simple disposable absorbent article having breathable side barriers|
|WO1993015700A1 *||Feb 16, 1993||Aug 19, 1993||Moelnlycke Ab||An absorbent disposable article constructed from at least two flat flexible bodies containing absorbent material, and a package of articles having s-shaped edges|
|U.S. Classification||604/365, 604/385.201, 604/372, 604/390|
|International Classification||A61F13/15, A61F13/494|