|Publication number||US3570493 A|
|Publication date||16 Mar 1971|
|Filing date||23 Dec 1968|
|Priority date||29 Dec 1967|
|Also published as||DE1815857A1|
|Publication number||US 3570493 A, US 3570493A, US-A-3570493, US3570493 A, US3570493A|
|Inventors||Esko Tapio Olsson|
|Original Assignee||Moelnlycke Ab|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (49), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [72 Inventor Esko Tapio Olsson Molndal, Sweden  Appl. No. 786,196  Filed Dec. 23, 1968  Patented Mar. 16, 1971  Assignee Molnlycke AB Gothenburg, Sweden  Priority Dec. 29, 1967  Sweden  18,087/1967  SANITARY TOWEL 3 Claims, 7 Drawing Figs.
 US. Cl.  Int. Cl.  Field of Search [5 6] References Cited UNITED STATES PATENTS 3,371,667 3/1968 Merse 3,371,668 3/1968 Johnson 3,494,362 2/1970 Burgeni 128/290 FOREIGN PATENTS 43,071 8/1926 Norway 128/290 814,498 6/1959 Great Britain 128/290 Primary Examiner-Charles F. Rosenbaum Attorney-Young & Thompson wearer into side leakage avoiding sealing engagement with adjacent leg portions irrespective of any variation in the relative positions thereof. The edges of the towel are curved upward in a prestressed position and are retained in that position by means of a strip of material that extends between the edges of the towel and is of a material that weakens upon contact with A liquid, so that the strip ruptures after the towel is in place.
" Patented, March 16, 1971 0, 3
2 Sheets-Sheet l INVEN'I'OR. [ska TAP/0 04 sso/v Patented March16, 1971 3,570,493
2 Sheets-Sheet 2 SANITARY TOWEL The present invention is concerned with sanitary towels. In conventional sanitary towels the absorption material of the towel is normally enclosed in a separate casing or sheath to form an absorption body. a
One prerequisite of sanitary towels is that said towels when placed in position seal to the highest possible extent against the insides of the thighs of the wearer to. avoid so-called side leakage.
The object of the present invention is to provide a sanitary towel which realizes the aforesaid requirement in a simple and effective manner. This is achieved by a sanitary towel according to the invention which is characterized in that it includes a member which extends in the longitudinal direction of said towel and which is elastically deformable,- particularly in the transverse direction of the towel and which is of such width that in the position of use of the towel said member can be elastically deformed to thereby urge the side edges of the towel situated between the thighs-of the wearer into sealing engagement against the adjacent leg portions irrespective of any variation in the relative position thereof.
The elastic member can be formed in a plurality of ways within the scope of the invention. In a preferred embodiment the member comprises a slab of foam plastic or similar material on which the absorption body is positioned. Instead of the elastic slab, or in combination therewith, a resilient insert can be arranged within or on the absorption body. Alternatively, a portion of the casing of the absorption body can be made of foam plastic or similar elastic material, possibly having for instance a layer of fibrous material positioned on the inside thereof to impart the desired softness to the towel. To facilitate positioning of the towel said towel can be prestressed and retained in the stressed position by means of a strip of liquid-soluble material. When the strip of material is.
moistened by the liquid emanating from the user it ruptures allowing the side edge portion of the towel to spread into sealing engagement with adjacent portions of the body.
A number of suitable embodiments-of the towel according to the invention are shown in cross section in the accompanying drawings.
FIG. 1 shows a sanitary towel according to the invention provided with an elastic member incorporated in the absorption body, FIG. 2 is a diagrammatic view in perspective of the elastic member shown in FIG. 1, FIG. 3. shows the towel with upwardly curved side edges and placed in position between two portions of the body, FIG. 4-shows another embodiment in which the absorption body lies on a slab of elastic material, FIG. 5 shows the towel in FIG. 4 in the position of use, FIG. 6 shows a towel which is held prestressed in the position of use by means of a liquid-soluble material strip, and FIG. 7 shows the towel of FIG. 6 subsequent to rupture of the retaining material strip. r a In the FIGS. there is shown a cross section of an absorption body 1 which consists, in a known manner, of a casing of net material, gauze, nonwoven or the like material encasing a liquid-absorbing substance such as dry defibered cellulose.
completely or partially enclosed by an outer layer of cellular plastic material, rayon fibre, synthetic fibre or nonwoven material to impart a soft surface to the'towel.
FIG. 2 shows an elastic, flexible member in the form of a ladder-shaped member presenting cross ribs 2, and longitudinally extending ribs 3. The flexible member is made of a resilient plastic material and is inserted in the absorption body 1, suitably in the proximity of its bottom side.
FIG. 3 illustrates a cross section of the towel clamped between the insides of two body portions 4,5 indicated by morse lines. The side edge portions of the towel are curved upwards and as a result of the flexible members 2,3 the side edges of said towel are urged into sealing abutment with the body portions 4,5. The manner in which the towel endeavors to conform to the actual width between the aforementioned bod cportions has been indicated raphically with arrows 6.
F 4 illustrates a cross sec IOII of'an absorption body which lies on a slab 7 of foam plastic, foam rubber, acryl fibre or some other similar resilient elastic material. The absorption body and the material slab can be arranged within a net hose 8 which is used to suspend the towel.
The under surface of the absorption body is suitably fixed at its center portion to the slab by gluing 9 or heat sealing, for instance.
FIG. 5 illustrates a cross section of the towel in FIG. 4 in the position of use where the towel functions in the same manner as that described with reference to FIG. 3.
FIG. 6 illustrates a cross section of essentially the same towel as that illustrated in FIG. 4 except that the towel in FIG. 6 is biassed in its position of use. A strip 10 of liquid-soluble material such as cellular plastic extends between the upwardly curved edges of the material slab and is secured thereto by adhesive or heat sealing.
FIG. 7 illustrates a cross section of the towel in FIG. 6 subsequent to said towel being placed in position and subsequent to the strip of liquid-soluble material being ruptured to form two portions l0a,l0b as a result of the liquid emanating from the wearer of the towel. The side edge portions of the material slab 7 abut sealingly with the adjacent body portions 4,5 and adapt themselves to the different distances therebetween.
I claim: e
1. In a sanitary towel comprising an elastically deformable member extending lengthwise of the towel for sealing the edges of the towel against the body of the user, and a body of material absorptive to liquid on said elastically deformable member; the improvement comprising a layer of material that weakens upon contact with liquid and that extends between and retains the edges of the towel closer together than when the elastically deformable member is unstressed, so that upon contact with liquid, said layer ruptures and the elastically deformable member applies the edges of the towel against the body of the user.
2. A towel as claimed in claim 1, said elastically deformable member comprising a slab of elastically deformable material.
3. A towel as claimed in claim I, said elastically deformable member comprising a number of flexible ribs spaced apart lengthwise of the towel and held together by at least one longitudinally extending rib integral therewith.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3371667 *||11 Jun 1964||5 Mar 1968||Johnson & Johnson||Article for absorbing body exudates|
|US3371668 *||14 Apr 1965||5 Mar 1968||Johnson & Johnson||Sanitary napkin|
|US3494362 *||1 May 1967||10 Feb 1970||Johnson & Johnson||Absorbent pad|
|GB814498A *||Title not available|
|NO43071A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3736931 *||9 Jun 1971||5 Jun 1973||J Glassman||Catamenial napkin|
|US4533356 *||12 Dec 1979||6 Aug 1985||Uno Plast A/S||Surgical device|
|US4655760 *||30 Jul 1985||7 Apr 1987||Kimberly-Clark Corporation||Elasticized garment and method of making the same|
|US4668230 *||9 Jul 1984||26 May 1987||Kimberly-Clark Corporation||Bowed, trough-like absorbent pad|
|US4865597 *||6 Jul 1987||12 Sep 1989||Kimberly-Clark Corporation||Absorbent product with reinforcing member to resist deformation|
|US4886513 *||10 Mar 1989||12 Dec 1989||Kimberly-Clark Corporation||Absorbent pad with reinforcing member to resist deformation|
|US5171302 *||21 Jan 1992||15 Dec 1992||The Procter & Gamble Company||Absorbent article with central hinge|
|US5197959 *||2 Oct 1991||30 Mar 1993||The Procter & Gamble Company||Absorbent article|
|US5300055 *||11 Dec 1992||5 Apr 1994||The Procter & Gamble Company||Absorbent article having a thermoplastic deformable element|
|US5324278 *||28 May 1992||28 Jun 1994||The Procter & Gamble Company||Sanitary napkin having components capable of separation in use|
|US5591150 *||11 May 1994||7 Jan 1997||The Procter And Gamble Company||Sanitary napkin having a resilient body-conforming portion|
|US5609588 *||8 Jun 1994||11 Mar 1997||Kimberly-Clark Corporation||Article having a non-absorbent resilient layer|
|US5611790 *||7 Jun 1995||18 Mar 1997||The Procter & Gamble Company||Stretchable absorbent articles|
|US5658269 *||6 Jun 1995||19 Aug 1997||The Procter & Gamble Company||Extensible absorbent articles|
|US5674212 *||18 Jul 1995||7 Oct 1997||The Procter & Gamble Company||Extensible absorbent articles|
|US5674214 *||9 Nov 1995||7 Oct 1997||The Procter & Gamble Company||Sanitary napkin having components capable of separation in use|
|US5683375 *||21 Aug 1996||4 Nov 1997||The Procter & Gamble Company||Extensible absorbent articles|
|US5702382 *||6 Jun 1995||30 Dec 1997||The Procter & Gamble Company||Extensible absorbent articles|
|US5704931 *||30 Jul 1993||6 Jan 1998||Mcneil-Ppc, Inc.||Absorbent article having a deformation resisting apparatus|
|US5713884 *||7 Jun 1995||3 Feb 1998||The Procter & Gamble Company||Stretchable absorbent articles|
|US5733274 *||10 Sep 1996||31 Mar 1998||The Procter & Gamble Company||Sanitary napkin having stiffened center|
|US5824004 *||23 Jul 1992||20 Oct 1998||The Procter & Gamble Company||Stretchable absorbent articles|
|US6007528 *||31 Dec 1996||28 Dec 1999||The Procter & Gamble Company||Sanitary napkin having stabilized members in the end regions|
|US6059764 *||4 Feb 1997||9 May 2000||The Procter & Gamble Company||Stretchable absorbent articles|
|US6162204 *||16 Nov 1998||19 Dec 2000||Sca Hygiene Products Ab||Absorbent article with improved forming ability|
|US6284943||13 Dec 1996||4 Sep 2001||The Procter And Gamble Company||Absorbent article having increased flexibility in use|
|US6287288||13 Jun 1997||11 Sep 2001||The Procter & Gamble Company||Stretchable absorbent articles|
|US6325786||11 Nov 1997||4 Dec 2001||Sca Hygiene Products Ab||Absorbent article having increased front portion stiffness|
|US6346097 *||8 Aug 1997||12 Feb 2002||Kimberly-Clark Worldwide, Inc.||Personal care product with expandable BM containment|
|US6350257||11 Nov 1997||26 Feb 2002||Sca Hygiene Products Ab||Absorbent article with high stiffness|
|US6423043||18 Jun 1998||23 Jul 2002||Sca Hygiene Products Ab||Absorbent articles with improved body contact|
|US6425890 *||11 Nov 1997||30 Jul 2002||Sca Hygiene Products Ab||Absorbent article with a raised portion|
|US6524291||11 Nov 1997||25 Feb 2003||Sca Hygiene Products Ab||Absorbent article such as a sanitary napkin, an incontinence guard, a panty-liner or the like|
|US6610902||11 Nov 1997||26 Aug 2003||Sca Hygiene Products Ab||Absorbent structure for use in an absorbent article|
|US20020143309 *||30 Mar 2001||3 Oct 2002||Tara Glasgow||Dynamic fitting compound sanitary napkin|
|US20030125701 *||6 Dec 2002||3 Jul 2003||Urban Widlund||Absorbent article with improved fit|
|US20050090791 *||3 Feb 2003||28 Apr 2005||Tahar Jerou||Shock-absorbing and sterile body hygiene article such as a panty-napkin|
|US20050256472 *||4 Jul 2003||17 Nov 2005||Katsushi Tsutsui||Absorbable product|
|US20060106356 *||18 Nov 2004||18 May 2006||Mcvicker Caren S||Urine-absorbing pad|
|EP0298348A1 *||28 Jun 1988||11 Jan 1989||Kimberly-Clark Corporation||Absorbent pad with reinforcing member to resist deformation|
|EP0335252A2 *||23 Mar 1989||4 Oct 1989||THE PROCTER & GAMBLE COMPANY||Absorbent article|
|EP0604764A1||25 Nov 1993||6 Jul 1994||McNEIL-PPC, INC.||Disposable sanitary napkin|
|EP0916328A1 *||12 Nov 1998||19 May 1999||SCA Hygiene Products AB||Absorbent article with improved forming ability|
|WO1980001239A1 *||12 Dec 1979||26 Jun 1980||Uno Plast As||Surgical device|
|WO1998029076A1 *||23 Dec 1997||9 Jul 1998||The Procter & Gamble Company||Sanitary napkin having stabilizing members in the end regions|
|WO1998058614A1 *||18 Jun 1998||30 Dec 1998||Sca Hygiene Products Ab||Absorbent articles with improved body contact|
|WO1999000093A1||30 Jun 1998||7 Jan 1999||The Procter & Gamble Company||Absorbent article with multi-layered extensible wings|
|WO1999000094A1||30 Jun 1998||7 Jan 1999||The Procter & Gamble Company||Extensible crimp seal for sanitary napkins|
|WO1999001518A1||30 Jun 1998||14 Jan 1999||E.I. Du Pont De Nemours And Company||Method for making a photodurable aqueous titanium dioxide pigment slurry|
|U.S. Classification||604/385.31, 604/372, 604/375, 604/369|
|Cooperative Classification||A61F13/4702, A61F13/4751|
|European Classification||A61F13/47A, A61F13/475A|