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Publication numberUS3731687 A
Publication typeGrant
Publication dateMay 8, 1973
Filing dateJul 16, 1971
Priority dateJul 16, 1971
Publication numberUS 3731687 A, US 3731687A, US-A-3731687, US3731687 A, US3731687A
InventorsJ Glassman
Original AssigneeJ Glassman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Catamenial tampon
US 3731687 A
Abstract
A catamenial tampon comprised of plural strips of moisture absorbent material, one of which may be highly compressed and arranged so that upon being wetted the tampon will forcibly expand to fill or substantially fill the vaginal passage to prevent spill-over and leakage.
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Claims  available in
Description  (OCR text may contain errors)

U United States Patent 1191 1111 3,731,687

Glassman 1 May 8, 1973 54 CATAMENIAL TAMPON 2,711,173 6/1955 Seidler ..128/2125 [76] Inventor: Jacob A. Glassman, 1680 Meridian gf a1 128/285 Avenue Beach 33139 3.572341 3/1971 Glassman ..128/285 [22] Filed: July 16, 1971 Primary Examiner-Charles F. Rosenbaum [211 App! 163270 Attorney-Elmer L. Zwickel [52] U.S.Cl ..l28/285 [57] ABSTRACT [51] lnLCl. ..A6lf 13/20 A catamenial tam pon compnsed of plural stnps of [58] Field of Search ..l28/285,l2l693/,i;()5, moisture absorbent mamrial, one of which may be highly compressed and arranged so that upon being wetted the tampon will forcibly expand to fill or sub- [56] References Cited stantially fill the vaginal passage to prevent spill-over UNITED STATES PATENTS and leakage- 2,39l,343 12/1945 Popper ..128/263 8 Claims, 11 Drawing Figures PATENIED 3.731.687

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SHEET 2 BF 2 Egi 6 w CATAMENIAL TAMPON The present invention generally relates to improvements in catamenial tampons. A major deficiency of conventional tampons is their inability to cope with rapid and heavy menstrual flow. This is because, being cylindrical in form, they do not have a very great absorptive area and as a consequence they are found to be impractical during the first few days of a normal menstrual period when the flow is relatively large. Accordingly, there is excessive flow-through or spill-over much to the inconvenience of the user. For example, a tampon made of absorptive material such as cotton or paper fluff and cotton, has an approximate weight of 3 to 3.5 grams and will have the capacity to pick up or absorb from 11 to 14 cc. of menstrual fluids. However, in actual use, because of their construction, they will pick up only an average of from 4 to 8 cc. of menstrual fluids, thus being but from 35 to 75 percent efficient. This is because the conventional tampon fails to open up or loosen up in such manner so that the central interior portions thereof are not exposed to absorb more fluids.

The tampon disclosed herein is an improvement over the tampon shown in U.S. Pat. No. 3,397,695, granted Aug. 20, 1968, which teaches the use of a tampon fabricated from single strips of absorbent material arranged initially in the form of the spokes of a wheel, which spokes are brought together into a cylindrical tampon form. The strips of such tampon, being single thickness, become equally and fully saturated in a short time. Also because the folded strips frequently fail to separate or blossom out when the tampon is wetted, they are far from efficient in that they fail to absorb their maximum absorptive capacity.

The present tampon is comprised of a strip of soft moisture absorbent material such as cotton or paper fluff and cotton, having laid thereover a second strip of like material, compressed. The latter strip or inner layer has arranged on one or both of its sides a sheet of fold resisting moisture impervious material with a good and lasting memory for re-expansion. Thus the total rapid absorption initially by the first named or outer layer is greatly retarded.

Preferably the overlay or inner" absorptive layer or strip is narrower and shorter than the outer absorptive strip. The laminated strip may be used to form a tampon or a plurality of similar strips may be arranged one upon the other with their mid-sections intersecting one another much in the manner of the spokes of a wheel. A tie cord is secured about the longitudinal center of the single laminated strip or about the intersection of two or more laminated strips, so as to secure them together, and to also provide a pull string useful in the removal of the tampon from the vaginal passage. After tying, the radially extending end portions of the laminated strip or strips are folded together into a substantial cylindrical form to form a tampon, against the resistance of the fold resistant impervious material.

It is therefore an object of the invention to provide a tampon of the character referred to.

Another object is to provide a tampon of the character that will naturally tend to open or spread partially when placed in the vaginal passage, even before being wetted.

Another object is to provide a tampon of the character referred to which includes novel means to cause dynamic expansion and opening up of the tampon when inserted into the vaginal passage and wetted.

Another object is to provide a tampon of the character that exhibits greatly increased absorptivity for menstrual fluids.

Another object is to provide a tampon of the character that provides a physical barrier against inadvertent leakage of menstrual fluids.

Another object is to provide a tampon that is inexpensive and simple to construct, and very efficient in its use.

Other objects and advantages of the invention will become apparent with reference to the following description and accompanying drawings.

IN THE DRAWINGS FIG. 1 is an elevational view of the tampon enclosed in a conventional applicator.

FIG. 2 is an elevational view, partly broken away, of one embodiment of the tampon, with a concave entrance end.

FIG. 3 is a similar view showing the tampon when it is in the vaginal passage and forcibly expanded upon being wetted.

FIG. 4 is a side elevational view of the laminated strip constituting the tampon shown in FIG. 2.

FIG. 5 is a plan view of the FIG. 4 assembly.

FIG. 6 is a side elevational view of a modified form of tampon.

FIG. 7 is a plan view of the assemblage of strips making up the tampon of FIG. 6.

FIG. 8 is a sectional view taken on line 8-8 of FIG.

FIG. 9 is a view of another modified form of tampon.

FIG. 10 is a view of the FIG. 9 tampon expanded.

FIG. 11 is a view of the laminate structure of the FIG. 9 tampon.

Referring now to the embodiment of the invention illustrated in FIGS. 1 through 5, of the accompanying drawings, the tampon 11 is conventionally enclosed in a conventional applicator tube 12 so as to be readily insertable in the vaginal passageway. The tampon illustrated is comprised, in part, of a narrow strip 0 13 of loosely matted fluid absorbent material such as cotton or paper fluff and cotton. A layer of fold-resistant fluid impervious material 14, such as a thin sheet or cellulose or polyethylene material, or even sponge rubber strips, and of a size smaller in all dimensions than the first named layer 13 is laidover one (the upper) face of said strip. Over this is placed an inner layer 15 of highly fluid absorbent material such as cotton or paper fluff and cotton. This layer is smaller in all dimensions that the first named layer 13 and is highly compressed for a purpose to be explained presently. Over this layer 15 there is placed a strip 16 of moisture impervious material, which may be like the strip 14. Either one or both of said moisture impervious strips 14, 16 may be, and preferably are perforated.

The laminate assembly has a string 17 attached to its medial portion and the whole is then folded along the string line to provide two like halves or fingers, as best shown in FIG. 2. This folded assembly is formed substantially cylindrical by means and apparatus well known in the art and the string 17 affords a pull cord at the folded or rear end of the formed tampon to facilitate withdrawal of the tampon from the vaginal passage after its full and useful life has been expended. When formed, the entrance end of the tampon is concaved as shown so as to allow the menstrual secretions to either strike directly or gravitate toward the center where the central core portions reaches near the top, thereby the central core portion immediately becomes wetted at the very onset of menstrual flow.

When the tampon is inserted into the vaginal passage, the fold resistant layers 14, 16 tend to immediately urge the two halves apart slightly. Thus the initial flow of menstrual fluids is onto the interior surfaces of the inner layer of the tampon and when the said inner layer becomes wetted it quickly expands to urge the two halves to widen further apart. Because the inner layer 15 is initially compressed there is dynamic expansion, when wetted, to force the two halves apart and insure that the tampon totally fills the vaginal passage. Such dynamic expansion of the inner layer 15 is assured because of the presence of the impervious sheets 14, 16. These sheets, and particularly the sheet 14, prevents rapid flow of fluids from the inner layer 15 into the outer layer 13 thus the inner layer becomes substantially totally saturated before there is any appreciable flow to the outer layer. As a consequence, there is substantial total fluid absorption by the tampon with no premature spill-over or flow through, thus increasing its efficiency and useful life.

In the embodiment shown in FIGS. 6, 7 and 8, the tampon is made up of a pair of like laminate strips 18 each comprised of an outer layer 19 of loose cotton or paper fluff and cotton; a layer 21 of moisture impervious material; a layer 22 of moisture absorbent matterial such cotton or paper fluff and cotton; and a covering layer 23 of moisture impervious fold resistant material. As best shown in FIG. 7, the laminate strips 18 are arranged in the form of an X or and each strip preferably is wider at its end portions than at its center, as shown. These strips are tied together with a tie string 17a which also serves as a pull cord. The X or +formation is folded by bringing the end portions of the strips together and, as shown in FIG. 6, it is shaped into a cylindrical form by the usual processes. The wide ends of the strips more easily form a cup-shaped tampon, when expanded, upon being wetted.

In the FIG. 9, and 11 illustrations the tampon structure is similar to the FIG. 1-5 structure but here one end of the inner or second highly compressed strip a extends to the outer end of the outer or first strip 13a. When folded as shown in FIGS. 9 and 10, the extended end of the inner strip is exposed to initial menstrual flow so as to insure absorption by it initially.

It should be evident that the herein disclosed tampons greatly increase the amount of menstrual fluids that are absorbed and physically held by the tampon, thus increasing the safety factor against spill-over and leakage of menstrual fluids out from the vagina; and extion. Accordingly, I do not desire to be restricted to the exact construction described.

I claim:

1. A catamenial tampon comprising a plurality of menstrual fluid absorbing strips secured in a radial configuration at a common center at the rear end of the tampon and folded together whereby the strips extend longitudinally of the tampon with the forward ends thereof collectively comprising the forward end of the tampon, a highly compressed overlay strip of fluid absorbing fibrous material on each first named strip disposed on the inside face of the folded strips to increase the absorbtivity of the tampon, a sheet of moisture impervious fold-resisting material overlying each face of the overlay strip and at least one of saidsheets being perforated, said overlay strip being capable of dynamic expansion when wetted to cause maximum spreading of the tampon upon contact with moisture.

2. The tampon recited in claim 1, in which the overlay strip is narrower and shorter than the first named strip.

3. A catamenial tampon comprising a first strip of menstrual fluid absorbing material, a second highly compressed strip of menstrual fluid absorbing material laid over the first named strip, said second strip being narrower than the first named strip and being of such length as to terminate short of one end of the first strip with their other ends in substantial register, a tie string embracing the strips midway of their length, and the end portions of said strips being folded one upon the other into tampon form with the free ends of the first named strip defining the entrance end of the tampon.

4. The tampon recited in claim 3, in which a layer of moisture impervious material is arranged between said strips.

5. The tampon recited in claim 4, in which the moisture impervious material is perforated.

6. The tampon recited in claim 3, in which the short end of the second strip is disposed beneath the entrance end of the tampon when said strips are folded medially.

7. The tampon recited in claim 3, in which a layer of fold resistant moisture impervious material is present between said layers.

8. The tampon recited in claim 4, in which a layer of moisture impervious material is disposed on each face of the said second strip.

I l '0 I l

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2391343 *Jan 29, 1942Dec 18, 1945Otto PopperVaginal obturator
US2711173 *Jan 15, 1954Jun 21, 1955Seidler Leon SDepositors and applicators
US3079921 *Apr 17, 1959Mar 5, 1963Johnson & JohnsonAbsorbent product
US3397695 *Jun 28, 1965Aug 20, 1968Joseph A. VossCatamenial tampon and method of making
US3572341 *Feb 20, 1969Mar 23, 1971Jacob A GlassmanCatamenial tampon
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3834389 *Nov 28, 1972Sep 10, 1974Procter & GambleTextile tampon having a resilient foam core
US3924623 *Nov 4, 1974Dec 9, 1975Marion Health And Safety IncTip for applicator swab
US3971378 *Dec 20, 1974Jul 27, 1976Ortho Pharmaceutical CorporationExpansible tampon
US3981305 *Sep 11, 1975Sep 21, 1976Kimberly-Clark CorporationLow density tampon of intermeshed deformable strip material and inserter therefor
US4318407 *Aug 28, 1980Mar 9, 1982Kimberly-Clark CorporationFolded tampon pledget
US5299581 *Jun 30, 1992Apr 5, 1994Donnell John TIntravaginal device
US6283952May 5, 1997Sep 4, 2001Tambrands, Inc.Shaped tampon
US6595974Oct 2, 2000Jul 22, 2003Playtex Products, Inc.Rapid expansion tampon pledget
US7160279Jul 16, 2003Jan 9, 2007Playtex Products, Inc.Rapid expansion tampon pledget comprising inverted coverstock and pleats
US7214218 *Nov 21, 2003May 8, 2007The Procter & Gamble CompanyTampon with raised portions having multiple widths
US7387622Oct 7, 1999Jun 17, 2008Playtex Products, Inc.Rapid expansion tampon pledget
US7618403Jun 30, 2004Nov 17, 2009Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US7810447 *Jan 9, 2006Oct 12, 2010Deborah ManosArticulating paper coating dispenser and method
US7845380Jun 1, 2006Dec 7, 2010Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US7861494Jun 30, 2006Jan 4, 2011Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8026409Mar 7, 2006Sep 27, 2011Andersch BjoernTampon
US8028500Mar 16, 2010Oct 4, 2011Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8057453May 31, 2006Nov 15, 2011Mcneil-Ppc, Inc.Method of using an intravaginal device with fluid transport plates
US8182455May 31, 2006May 22, 2012Mcneil-Ppc, Inc.Method of using intravaginal device with fluid transport plates
US8197434Apr 28, 2004Jun 12, 2012Playtex Products, Inc.Tampon assembly having shaped pledget
US8231753Mar 12, 2010Jul 31, 2012Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8247642May 14, 2004Aug 21, 2012Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US8293968Apr 29, 2005Oct 23, 2012Kimberly-Clark Worldwide, Inc.Dual mode absorbent tampon
US8480833May 13, 2005Jul 9, 2013Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates and methods of making
US8535285Aug 18, 2011Sep 17, 2013Mcneil-Ppc, Inc.Method of using an intravaginal device with fluid transport plates
US8585668Jan 8, 2007Nov 19, 2013Playtex Products, LlcRapid expansion tampon pledget
US8604269Mar 12, 2009Dec 10, 2013Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8653322May 14, 2004Feb 18, 2014Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8697936Mar 12, 2010Apr 15, 2014Mcneil-Ppc, Inc.Intravaginal device with fluid transport plates
US8702670 *Jun 30, 2005Apr 22, 2014Mcneil-Ppc, Inc.Intravaginal device with controlled expansion
US8827974 *Dec 30, 2005Sep 9, 2014Kimberly-Clark Worldwide, Inc.Absorbent tampon for feminine hygiene
US8864640May 16, 2005Oct 21, 2014Mcneil-Ppc, Inc.Methods of packaging intravaginal device
US8912383Sep 17, 2012Dec 16, 2014Kimberly-Clark Worldwide, Inc.Dual mode absorbent tampon
US9035124Mar 2, 2009May 19, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US9035126Feb 21, 2013May 19, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US9044354Feb 21, 2013Jun 2, 2015Mcneil-Ppc, Inc.Fluid management device with fluid transport element for use within a body
US9107775Apr 15, 2009Aug 18, 2015Eveready Battery Company, Inc.Tampon pledget with improved by-pass leakage protection
US20040127879 *Jul 16, 2003Jul 1, 2004Playtex Products, Inc.Rapid expansion tampon pledget
US20040243088 *Apr 28, 2004Dec 2, 2004Playtex Products, Inc.Tampon assembly having shaped pledget
US20050096620 *Oct 31, 2003May 5, 2005Bernhard AwolinTampon having liquid-resistant base
US20050113782 *Nov 21, 2003May 26, 2005The Procter & Gamble CompanyTampon with raised portions having multiple widths
US20050131371 *Dec 10, 2003Jun 16, 2005Fell David A.Fold line resistant absorbent articles
US20050256486 *Jun 30, 2004Nov 17, 2005Carasso Samuel CFluid management device with fluid transport element for use within a body
US20050256511 *May 14, 2004Nov 17, 2005Chase David JIntravaginal device with fluid transport plates
US20070260211 *Dec 30, 2005Nov 8, 2007Schmidt-Forst Alexander MAbsorbent tampon for feminine hygiene
EP1700588A1 *Mar 9, 2005Sep 13, 2006Björn AnderschTampon
EP2275066A1 *May 13, 2005Jan 19, 2011Johnson & Johnson Consumer Companies, Inc.Intravaginal device with fluid transport plates
EP2347742A1 *May 16, 2005Jul 27, 2011Johnson & Johnson Consumer Companies, Inc.Methods of packaging intravaginal device
WO1998006365A1 *Jul 9, 1997Feb 19, 1998Kimberly Clark CoTampon having a resilient member and a method of forming the tampon
WO1998006366A1 *Jul 9, 1997Feb 19, 1998Kimberly Clark CoA laterally expandable tampon and a method of forming the tampon
WO2006055036A1 *May 13, 2005May 26, 2006Johnson & Johnson ConsumerIntravaginal device with fluid transport plates
WO2006094753A1 *Mar 7, 2006Sep 14, 2006Bjoern AnderschTampon
WO2008148396A2 *Jun 6, 2008Dec 11, 2008Mariann Lisbeth PoulsenTampon
WO2013182835A1 *Jun 7, 2013Dec 12, 2013Henson Margaret ImeldaTampons
Classifications
U.S. Classification604/379, 604/375, 604/377, 604/904, 604/368
International ClassificationA61F13/20
Cooperative ClassificationA61F13/2068, Y10S604/904
European ClassificationA61F13/20C8