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Publication numberUS3570493 A
Publication typeGrant
Publication date16 Mar 1971
Filing date23 Dec 1968
Priority date29 Dec 1967
Also published asDE1815857A1
Publication numberUS 3570493 A, US 3570493A, US-A-3570493, US3570493 A, US3570493A
InventorsEsko Tapio Olsson
Original AssigneeMoelnlycke Ab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary towel
US 3570493 A
Images(2)
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Description  (OCR text may contain errors)

United States Patent [72 Inventor Esko Tapio Olsson Molndal, Sweden [21] Appl. No. 786,196 [22] Filed Dec. 23, 1968 [45] Patented Mar. 16, 1971 [73] Assignee Molnlycke AB Gothenburg, Sweden [32] Priority Dec. 29, 1967 [33] Sweden [31] 18,087/1967 [54] SANITARY TOWEL 3 Claims, 7 Drawing Figs.

[52] US. Cl. [51] Int. Cl. [50] 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.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3371667 *11 Jun 19645 Mar 1968Johnson & JohnsonArticle for absorbing body exudates
US3371668 *14 Apr 19655 Mar 1968Johnson & JohnsonSanitary napkin
US3494362 *1 May 196710 Feb 1970Johnson & JohnsonAbsorbent pad
GB814498A * Title not available
NO43071A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3736931 *9 Jun 19715 Jun 1973J GlassmanCatamenial napkin
US4533356 *12 Dec 19796 Aug 1985Uno Plast A/SSurgical device
US4655760 *30 Jul 19857 Apr 1987Kimberly-Clark CorporationElasticized garment and method of making the same
US4668230 *9 Jul 198426 May 1987Kimberly-Clark CorporationBowed, trough-like absorbent pad
US4865597 *6 Jul 198712 Sep 1989Kimberly-Clark CorporationAbsorbent product with reinforcing member to resist deformation
US4886513 *10 Mar 198912 Dec 1989Kimberly-Clark CorporationAbsorbent pad with reinforcing member to resist deformation
US5171302 *21 Jan 199215 Dec 1992The Procter & Gamble CompanyAbsorbent article with central hinge
US5197959 *2 Oct 199130 Mar 1993The Procter & Gamble CompanyAbsorbent article
US5300055 *11 Dec 19925 Apr 1994The Procter & Gamble CompanyAbsorbent article having a thermoplastic deformable element
US5324278 *28 May 199228 Jun 1994The Procter & Gamble CompanySanitary napkin having components capable of separation in use
US5591150 *11 May 19947 Jan 1997The Procter And Gamble CompanySanitary napkin having a resilient body-conforming portion
US5609588 *8 Jun 199411 Mar 1997Kimberly-Clark CorporationArticle having a non-absorbent resilient layer
US5611790 *7 Jun 199518 Mar 1997The Procter & Gamble CompanyStretchable absorbent articles
US5658269 *6 Jun 199519 Aug 1997The Procter & Gamble CompanyExtensible absorbent articles
US5674212 *18 Jul 19957 Oct 1997The Procter & Gamble CompanyExtensible absorbent articles
US5674214 *9 Nov 19957 Oct 1997The Procter & Gamble CompanySanitary napkin having components capable of separation in use
US5683375 *21 Aug 19964 Nov 1997The Procter & Gamble CompanyExtensible absorbent articles
US5702382 *6 Jun 199530 Dec 1997The Procter & Gamble CompanyExtensible absorbent articles
US5704931 *30 Jul 19936 Jan 1998Mcneil-Ppc, Inc.Absorbent article having a deformation resisting apparatus
US5713884 *7 Jun 19953 Feb 1998The Procter & Gamble CompanyStretchable absorbent articles
US5733274 *10 Sep 199631 Mar 1998The Procter & Gamble CompanySanitary napkin having stiffened center
US5824004 *23 Jul 199220 Oct 1998The Procter & Gamble CompanyStretchable absorbent articles
US6007528 *31 Dec 199628 Dec 1999The Procter & Gamble CompanySanitary napkin having stabilized members in the end regions
US6059764 *4 Feb 19979 May 2000The Procter & Gamble CompanyStretchable absorbent articles
US6162204 *16 Nov 199819 Dec 2000Sca Hygiene Products AbAbsorbent article with improved forming ability
US628494313 Dec 19964 Sep 2001The Procter And Gamble CompanyAbsorbent article having increased flexibility in use
US628728813 Jun 199711 Sep 2001The Procter & Gamble CompanyStretchable absorbent articles
US632578611 Nov 19974 Dec 2001Sca Hygiene Products AbAbsorbent article having increased front portion stiffness
US6346097 *8 Aug 199712 Feb 2002Kimberly-Clark Worldwide, Inc.Personal care product with expandable BM containment
US635025711 Nov 199726 Feb 2002Sca Hygiene Products AbAbsorbent article with high stiffness
US642304318 Jun 199823 Jul 2002Sca Hygiene Products AbAbsorbent articles with improved body contact
US6425890 *11 Nov 199730 Jul 2002Sca Hygiene Products AbAbsorbent article with a raised portion
US652429111 Nov 199725 Feb 2003Sca Hygiene Products AbAbsorbent article such as a sanitary napkin, an incontinence guard, a panty-liner or the like
US661090211 Nov 199726 Aug 2003Sca Hygiene Products AbAbsorbent structure for use in an absorbent article
EP0298348A1 *28 Jun 198811 Jan 1989Kimberly-Clark CorporationAbsorbent pad with reinforcing member to resist deformation
EP0335252A2 *23 Mar 19894 Oct 1989THE PROCTER & GAMBLE COMPANYAbsorbent article
EP0604764A125 Nov 19936 Jul 1994McNEIL-PPC, INC.Disposable sanitary napkin
EP0916328A1 *12 Nov 199819 May 1999SCA Hygiene Products ABAbsorbent article with improved forming ability
WO1980001239A1 *12 Dec 197926 Jun 1980S BengmarkSurgical device
WO1998029076A1 *23 Dec 19979 Jul 1998Procter & GambleSanitary napkin having stabilizing members in the end regions
WO1998058614A1 *18 Jun 199830 Dec 1998Anders GustafssonAbsorbent articles with improved body contact
WO1999000093A130 Jun 19987 Jan 1999Procter & GambleAbsorbent article with multi-layered extensible wings
WO1999000094A130 Jun 19987 Jan 1999Procter & GambleExtensible crimp seal for sanitary napkins
WO1999001518A130 Jun 199814 Jan 1999Du PontMethod for making a photodurable aqueous titanium dioxide pigment slurry
Classifications
U.S. Classification604/385.31, 604/372, 604/375, 604/369
International ClassificationA61F13/15
Cooperative ClassificationA61F13/4702, A61F13/4751
European ClassificationA61F13/47A, A61F13/475A