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Publication numberUS2787271 A
Publication typeGrant
Publication dateApr 2, 1957
Filing dateDec 7, 1953
Priority dateDec 7, 1953
Publication numberUS 2787271 A, US 2787271A, US-A-2787271, US2787271 A, US2787271A
InventorsClark Myrna Catherine
Original AssigneeClark Myrna Catherine
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary napkin
US 2787271 A
Images(1)
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Description  (OCR text may contain errors)

M. c. CLARK SANITARY NAPKIN April 2, 1957 Filed Dec 7, 1953 w W m. N .T 4Q ma .A M f. ,d A m SANITARY NAPKIN Myrna Catherine Clark, Los Angeles, Calif.

Application December 7, 1953, Serial No. 396,431

6 Claims. (Cl. 12S-290) This invention relates to sanitary napkins. Its general object isV to provide a napkin having a considerably increased absorption capacity, and which is adapted to provide complete and assured protection for the clothing of the wearer, thereby insuring increased confidence against embarrassing accidents.

Specifically, the invention contemplates a napkin including a rectangular central pad adapted to assume the same position as the conventional napkin, and, in addition thereto, a pair of lateral flaps which are adapted to fold downwardly and bear against the opposed inner surfaces of the thighs of the wearer, for arresting any overflow from the central pad, which would normally result in clothing stains.

A specific object of the invention is to provide such a napkin which is so fabricated that the lateral ilaps will readily bend downwardly along straight parallel hinge lines defining the respective sides of the central pad.

Another object is to provide such a pad which is of relatively simple and inexpensive construction.

Other objects will become apparent in the ensuing speciiications and appended drawings in which:

Fig. 1 is a plan view of a sanitary napkin embodying my invention;

Fig. 2 is a transverse sectional view of the napkin;

Fig. 3 is a side view of the napkin as worn by a user;

Fig. 4 is a transverse sectional view of the same;

Fig. 5 is a sectional view of a modified form of the invention, in an intermediate stage of fabrication; and

Fig. 6 is a transverse sectional view of the same after completion.

Referring now to the drawing in detail, my improved sanitary napkin comprises generally a rectangular central pad 5, a pair of lateral flaps 6, 6 formed as extensions of the sides of central pad 5, a pair of ears 7, 7' formed as extensions of the respective ends of central pad 5, and straps S, 8 attached to the respective ears 7, 7'.

Lateral aps 6' are adapted to fold, with reference to central pad 5, along parallel hinges 15, which define the lateral margins of central pad 5. When folded, the aps 6, 6' are adapted to assume downwardly draped posi tions bearing against the inner surfaces 9, 9 of the wear ers thighs, while the central pad 5 assumes the position of a conventional sanitary napkin, as illustrated in Fig. 3.

Central pad 5 and flaps 6, 6' are fabricated integrally to include a core body of soft absorbent fibrous material such as absorbent cotton, indicated at 10, an interliner of porous paper 11 surrounding body 10, and an envelope 12 of gauze which is stitched, at 13, around the margin of -the napkin. The core body 10 and paper interliner 11 extend without interruption, into the lateral aps 6 and 6' as shown in Fig. 2, and into the end ears 7, 7. Formed between central pad 5 and ears 7, 7' are transverse hinges 14, 14', the lines of stitching 13 being extended across the ends of central pad 5 and incorporated in hinges 14, 14. This retains the filler body 10 against bulging unduly into end ears 7, 7', and maintains the shape of central pad 5.

nited States Patent O y 2,787,271 Patented Apr. 2, 1957 ICC The margins of lateral aps 6, 6' are convexly curved, as shown, so that the overall marginal shape of the napkin is oval.

Hinges 15, 15' are rformed by steam pressing with relatively sharp-edged pressing tools along the lateral margins of pad 5. For example, the napkin may be passed between opposed pairs of heated disc rollers after having been steamed, with the rollers compressing the material of the pad between them along the lines of hinges 15, 15'. This leaves the napkin with straight-line indentations or grooves 16, 16 defining the side margins of central pad 5, with the hinges 15, 15 constituting very narrow areas, extending the tull length of the pad, of compacted material.

Straps 8, 8 may be fabricated from gauze folded or rolled several times upon itself to provide a four ply structure having adequate strength to secure the napkin in place. The ends of straps 8, 8 are sewn to the hinges 14, 14' by the lines of stitching extending therealong.

The straps 8, 8' are attached `to a sanitary belt in a con ventional manner in order to support the pad in its operative position.

When the napkin is worn, any overflow from central pad 5 will be absorbed by lateral flaps 6, 6', protecting the clothing against being soiled and giving ythe wearer increased confidence in avoiding embarrassing occurrences.

In the form of the invention shown in Figs. 5 and 6, the pad is of laminated structure, comprising an upper layer 20 of relatively high absorbency and lightly cornpressed; and a lower layer 21 of less absorbency and higher density. Both layers may be of a tibrous nature such as cotton batting, but layer 21 is more highly compressed than layer 20, and thus acquires its higher density. As 'the result of this characteristic, the underlayer 2l has a better ability to hold its shape and also to prevent moisture from seeping through the same, while the upper layer is highly absorbent and relatively soft against the skin of the wearer.

Lower layer 21 may be further stiffened by having there in one or more sheets 22 of woven fabric. The two layers may be compressed independently and then fitted together and again compressed suiciently to cause them to adhere; or they may be lightly stitched together.

Fig. 5 illustrates the two layers 20 and 21 before they have been compressed, but applied in face to face rela- Ition preparatory to being compressed to the thickness indicated in Fig. 6. It will be understood that the layers 20 and 21 are preferably compressed individually so that the diierent degree of compression therein may be attained, and they may then be subjected to some lfurther compression after having been applied face to face, in order to cause them to adhere one to another. They may then be enclosed in a cover 12 which is shown in Fig. 6 but not in Fig. 5. It will also be understood that the pad of Fig. 6 may have the side flaps 6a as well as the central pad 5a, as in the main form of the invention; or alternatively, in some instances the side flaps 6a may be eliminated.

I claim:

l. A sanitary napkin comprising a relative long, narrow rectangular central pad; a pair of lateral flaps integrally joined to said central pad; hinges joining said lateral tiaps to said central pad along parallel lateral margins thereof, said hinges consisting in compresse-d areas of the material of the napkin extending full length of said lateral margins; and straps at the respective ends of the pad for attaching the same to a sanitary belt.

2. In a sanitary napkin, a relatively long, narrow, rectangular central pad and a pair of side flaps integrally joined thereto, said central pad land side aps being integrally formed to include a central body of absorbent fibrous material, an inter-liner of porous paper surrounding said central body and an envelope of gauze enclosing said interliner and central body, 'all extending integrally throughout the width of said central pad and into said lateral flaps, said napkin including hinges along ,parallel lateral margins of the pad, joining the central padl to the lateral flaps and consisting in compressed areas of said librous body, inter-liner and envelope. t

3. in a sanitary napkin, a relatively long, narrow, rectangular central pad and a pair of side flaps each including a core of absorbent fibrous material, an inter-'liner of porous paper surrounding said core and an envelope of gauze enclosing said interliner and core, said envelope being stitched to said inter-liner around the margins of the napkin, said napkin including hinges extending 'along the side margins of said central pad and joining the same to said lateral flaps, said hinges consisting 'in compressed areas of said envelope, inter-liner and core extendingfull length of the side margins of said central pad and having very slight width.

4. A sanitary napkin as defined in claim 2, wherein said central pad and side flaps embody separate layers including an upper layer of loosely packed fibrous material of highly absorbent character and an under layer of more densely packed fibrous material, more resistent than said upper layer to the downward seepage therethrough, and more form retaining than said upper layer.

5 A sanitary napkin as defined in claim 2, wherein said central pad and side iiaps embody separate layers including an upper layer of loosely packed brous material of highly absorbent character and van under layer of more densely packed fibrous material, more resistent than said upper layer to the downward seepage therethrough, and more form retaining than said upper layer; said lower layer further including therein parallel sheets of gauze embedded in the iibrous material thereof and reinforcing the same.

6. ln a sanitary napkin, a relatively long, narrow, rectangular central pad and a pair of side flaps integrally joined thereto, said central pad and side flaps being integrally formed to include a central body of absorbent fibrous material, and an envelope of gauze enclosing said central body, both 4extending integrally throughout the width ot said central pad and int-o said lateral liaps, said napkin including hinges along parallel lateral margins ol the pad, joining the central pad to the lateral ilaps and consisting in compressed areas or" said fibrous body and envelope.

References Cited in the file of this patent UNTED STATES PATENTS 462,974 Allen Nov. l0, 1891 1,022,894 Sprague Apr. 9, 1912 1,882,309 Williams Oct. 11, 1932 2,076,526 Brown Apr. 13, 1937 2,295,016 Scribner Sept. 8, 1942

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US462974 *Apr 9, 1891Nov 10, 1891 Nelson r
US1022894 *Aug 17, 1911Apr 9, 1912Elizabeth SpragueCatamenial napkin.
US1882309 *Jul 17, 1928Oct 11, 1932Harrison R WilliamsSanitary napkin
US2076526 *Feb 16, 1934Apr 13, 1937Elmer H BrownSurgical packing
US2295016 *Feb 7, 1942Sep 8, 1942Scribner Marion EDisposable absorbent sanitary pad
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3356092 *Nov 20, 1964Dec 5, 1967Joa Curt GMulti-ply pads or pad fillers
US3395201 *Jul 14, 1964Jul 30, 1968Johnson & JohnsonMethod and apparatus for producing an absorbent product
US4285343 *Oct 16, 1979Aug 25, 1981Mcnair Rosetta MSanitary napkin
US4589876 *Mar 20, 1984May 20, 1986The Procter & Gamble CompanySanitary napkin
US4655759 *Sep 19, 1985Apr 7, 1987Kimberly-Clark CorporationReduced leakage menstrual pad with built-in fold lines
US4687478 *Oct 17, 1985Aug 18, 1987The Procter & Gamble CompanyShaped sanitary napkin with flaps
US4758240 *Dec 8, 1986Jul 19, 1988Glassman Jacob AAnantomical sanitary and incontinent pads
US5125918 *Apr 14, 1988Jun 30, 1992Mcneil-Ppc, Inc.Sanitary napkin having an attachment system comprising biased hinges
US5171302 *Jan 21, 1992Dec 15, 1992The Procter & Gamble CompanyAbsorbent article with central hinge
US5197959 *Oct 2, 1991Mar 30, 1993The Procter & Gamble CompanyAbsorbent article
US5219341 *Dec 20, 1991Jun 15, 1993Kimberly-Clark CorporationSanitary napkin with a faster transverse wicking absorbent layer to indicate the approach of maximum fluid capacity
US5221274 *Jul 16, 1992Jun 22, 1993The Procter & Gamble CompanyAbsorbent article with dynamic elastic waist feature having a predisposed resilient flexural hinge
US5267992 *May 22, 1987Dec 7, 1993The Procter & Gamble CompanyShaped sanitary napkin with flaps
US5300055 *Dec 11, 1992Apr 5, 1994The Procter & Gamble CompanyAbsorbent article having a thermoplastic deformable element
US5413570 *Apr 4, 1994May 9, 1995Kimberly-Clark CorporationDiapers with elasticized side pockets
US5415644 *Feb 13, 1989May 16, 1995Kimberly-Clark CorporationDiapers with elasticized side pockets
US5429630 *May 29, 1992Jul 4, 1995Kimberly-Clark CorporationAbsorbent article and a method of removing said article from an undergarment
US5437653 *May 12, 1993Aug 1, 1995Kimberly-Clark CorporationAbsorbent article having two coapertured layers and a method of making the article
US5454800 *May 12, 1993Oct 3, 1995Kimberly-Clark CorporationAbsorbent article
US5460622 *Nov 10, 1994Oct 24, 1995The Procter & Gamble CompanyAbsorbent article having blended multi-layer absorbent structure with improved integrity
US5486167 *Apr 12, 1995Jan 23, 1996The Procter & Gamble CompanyAbsorbent article having blended multi-layer absorbent structure with improved integrity
US5489283 *Dec 1, 1993Feb 6, 1996The Procter & Gamble CompanyShaped sanitary napkin with flaps
US5545157 *May 2, 1995Aug 13, 1996Kimberly-Clark CorporationPanty shield
US5558657 *Jul 15, 1994Sep 24, 1996The Procter & Gamble CompanyAbsorbent articles having overlapping undergarment covering components that automatically wrap the sides of undergarments
US5558662 *Apr 20, 1994Sep 24, 1996Kimberly-Clark CorporationAbsorbent article having an attachment mechanism and a method of attaching
US5582606 *May 23, 1995Dec 10, 1996Kimberly-Clarke CorporationAbsorbent article having dual barrier means
US5584829 *Jul 22, 1993Dec 17, 1996The Procter & Gamble CompanyAbsorbent articles having panty covering components that naturally wrap the sides of panties
US5591149 *Oct 7, 1992Jan 7, 1997The Procter & Gamble CompanyAbsorbent article having meltblown components
US5599338 *May 9, 1995Feb 4, 1997Kimberly-Clark CorporationDiapers with elasticized side pockets
US5601544 *Dec 23, 1993Feb 11, 1997Kimberly-Clark CorporationChild's training pant with elasticized shaped absorbent and method of making the same
US5611879 *Apr 15, 1991Mar 18, 1997Kimberly-Clark CorporationAbsorbent article having an absorbent with a variable density in the Z direction and a method of forming said article
US5676652 *Jul 17, 1995Oct 14, 1997The Procter & Gamble CompanyAbsorbent articles having undergarment covering components with mechanical fasteners having improved tactile properties
US5681300 *Nov 27, 1995Oct 28, 1997The Procter & Gamble CompanyAbsorbent article having blended absorbent core
US5681304 *May 7, 1996Oct 28, 1997Kimberly Clark Worldwide, Inc.Combination undergarment and absorbent article
US5755711 *Aug 23, 1996May 26, 1998The Procter & Gamble CompanyAbsorbent articles having overlapping undergarment covering components that automatically wrap the sides of undergarments
US5785698 *Dec 20, 1996Jul 28, 1998Kimberly-Clark CorporationPanty shield
US5795344 *Apr 2, 1997Aug 18, 1998Kimberly-Clark Worldwide, Inc.Absorbent article with protection channel
US5795349 *Sep 3, 1996Aug 18, 1998The Procter & Gamble CompanyAbsorbent articles having panty covering components that naturally wrap the sides of panties
US5807362 *Mar 28, 1994Sep 15, 1998Kimberly-Clark Worldwide, Inc.Absorbent article
US5810798 *Jan 15, 1997Sep 22, 1998Kimberly-Clark Worldwide, Inc.Absorbent article having a thin, efficient absorbent core
US5891121 *Jun 22, 1995Apr 6, 1999The Procter & Gamble CompanyAbsorbent articles having undergarment covering components especially suited for folding around the edges of an undergarment
US5895382 *Apr 26, 1993Apr 20, 1999Kimberly-Clark Worldwide, Inc.Foreshortened containment flaps in a disposable absorbent article
US5972806 *Feb 7, 1997Oct 26, 1999The Procter & Gamble CompanyAbsorbent articles having undergarment covering components with zones of extensibility
US6004893 *Aug 30, 1996Dec 21, 1999The Procter & Gamble CompanyShaped sanitary napkin with flaps
US6077255 *Jun 2, 1997Jun 20, 2000The Procter & Gamble CompanyAbsorbent articles having undergarment covering components with mechanical fasteners having improved tactile properties
US6160197 *Oct 16, 1996Dec 12, 2000Kimberly-Clark Worldwide, Inc.Absorbent article having a body-accommodating absorbent core
US6206865Oct 1, 1996Mar 27, 2001Kimberly-Clark Worldwide, Inc.Absorbent article having a cellulosic transfer layer
US6358234Aug 8, 1997Mar 19, 2002The Procter & Gamble CompanyAbsorbent article having deformed hinge and zones of extensibility
US6387084Feb 13, 1996May 14, 2002Kimberly-Clark Worldwide, Inc.Sanitary napkin with garment attachment panels
US6416502Apr 3, 1998Jul 9, 2002Kimberly-Clark Worldwide, Inc.Absorbent article having channels for receiving the edges of an undergarment
US6440115Nov 14, 2000Aug 27, 2002Kimberly-Clark Worldwide, Inc.Absorbent article having channels for receiving the edges of an undergarment
US6503233Oct 2, 1998Jan 7, 2003Kimberly-Clark Worldwide, Inc.Absorbent article having good body fit under dynamic conditions
US6521811Sep 22, 2000Feb 18, 2003Kimberly-Clark Worldwide, Inc.Sanitary napkin
US6562192Apr 12, 2000May 13, 2003Kimberly-Clark Worldwide, Inc.Absorbent articles with absorbent free-flowing particles and methods for producing the same
US6667424Apr 12, 2000Dec 23, 2003Kimberly-Clark Worldwide, Inc.Absorbent articles with nits and free-flowing particles
US6695827Nov 27, 2002Feb 24, 2004Kimberly-Clark Worldwide, Inc.Absorbent article having good body fit under dynamic conditions
US6703538May 18, 2001Mar 9, 2004Kimberly-Clark Worldwide, Inc.Absorbent article having a body-accommodating absorbent core
US6746435Dec 11, 1995Jun 8, 2004The Procter & Gamble CompanyShaped sanitary napkin with flaps
US6821270Feb 13, 2002Nov 23, 2004Mcneil-Ppc, Inc.Sanitary absorbent article
US6902552Apr 4, 2003Jun 7, 2005Kimberly-Clark Worldwide, Inc.Curved sanitary napkin with garment attachment panels
US6921393Feb 22, 2002Jul 26, 2005Kimberly-Clark Worldwide, Inc.Absorbent article for absorbing body fluids
US6936038Feb 22, 2002Aug 30, 2005Kimberly-Clark Worldwide, Inc.Absorbent article having a pair of fringes
US6964655Jan 31, 2002Nov 15, 2005Mcneil-Ppc, Inc.Thong sanitary napkin with self folding flaps
US7063689Dec 3, 2001Jun 20, 2006Kimberly-Clark Worldwide, Inc.Sanitary napkin with garment attachment panels
US7166094May 28, 2002Jan 23, 2007Tyco Healthcare Retail Services AgMultiple layer absorbent article
US7265258Sep 12, 2003Sep 4, 2007Kimberly-Clark Worldwide, Inc.Absorbent articles with nits and free-flowing particles
US7307197 *Mar 3, 2005Dec 11, 2007Uni-Charm CorporationInterlabial pad having a labial-following layer
US7429689Sep 15, 2003Sep 30, 2008Kimberly-Clark Worldwide, Inc.Absorbent article with center fill performance
US8277428Nov 1, 2001Oct 2, 2012Johnson & Johnson Ind. E Com. LtdaSanitary absorbent article
EP0130848A2 *Jul 5, 1984Jan 9, 1985THE PROCTER & GAMBLE COMPANYSanitary napkin
EP0134086A1 *Jul 5, 1984Mar 13, 1985THE PROCTER & GAMBLE COMPANYShaped sanitary napkin with flaps
EP0136524A1 *Aug 25, 1984Apr 10, 1985Zenmi Co. Ltd.Sanitary napkin
EP0337438A1 *Apr 12, 1989Oct 18, 1989McNEIL-PPC, INC.Sanitary napkin having an attachment system comprising biased hinges
EP1959892A1 *Dec 15, 2005Aug 27, 2008SCA Hygiene Products ABAbsorbent article
WO1999051178A1 *Mar 17, 1999Oct 14, 1999Kimberly Clark CoAn absorbent article
Classifications
U.S. Classification604/375, 604/377, 604/379
International ClassificationA61F13/15
Cooperative ClassificationA61F13/472, A61F13/4756, A61F13/4704
European ClassificationA61F13/472, A61F13/475A3, A61F13/47B