Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1843037 A
Publication typeGrant
Publication dateJan 26, 1932
Filing dateJul 19, 1928
Priority dateJul 19, 1928
Publication numberUS 1843037 A, US 1843037A, US-A-1843037, US1843037 A, US1843037A
InventorsGustave S Mathey
Original AssigneeJohnson & Johnson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary napkin
US 1843037 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

Jan. 26, 1932. s. MATHEY 1,843,37

SANITARY NAPKIN Filed July 19, 1928 dlto: new

tively expensive and Patented Jan. 26, 1932 l UNITED YSTATES PATENT OFFICE GUSTAVE S. MATHEY,

SON, OF NEW BRUNSWICK,

SANITARY NAPKIN Application tiled. July 19,

For a number of years it has been the absorbtive pads or iilling elements of sanitary napkins of superposed thin sheets or layers 5 of cellulosic or other readilydisposable 'material, a waterproofbacking being used to protect the clothing. Rubber, gutta percha, cellophane, cellulose esters, oil silk, and like eilicient waterproo materlals are comparaare employed only in the higher priced napkins. Hence, it is usual to employ relatively inexpensive substitutes y such as waxed papers of various kinds, including crepe cellulose paper, whose protective properties are indiierent at best. And the situation is aggravated by the rapid stanching action of the filling which is completely penetrated in a central localized area in a very short time, with the result that there is leakage and staining.

The object of the invention is to provide a low cost napkin which shall be free from the disadvantages vand defects mentioned.

The nature of the invention consists in overcoming conditions making for rapid local or centralized penetration y a novel assemblage of pa'd elements and separators or baiiies whose office it is to check iow between adjacent pad elements .until diiii'usion has occurred throughout the entire cross-section of the active pad element whereupon seepage ensues to the next pad and the iusing operation is repeated. Evidently the separators are of semi-waterproof composition for which many materials are qualiiied. Preferably, however, the separators should be of such character as not to detract from the flexibility, softness and conormability of the' absorbtive elements and in fact they should be so constructed and disposed as not to alter the general appearance of the pad.

The invention is illustrated in the accompanying drawings wherein Figure 1 is a sectional view of a sanitary napkin embodying the invention.

Figs. 2, 3, 4 and 5 are modifications of the absorbent pad or filling.

In the embodiment Fig-1, the .pad 5 which maybe of any appropriate composition is divided into top and bottom halves orl sec- 1928. Serial No. 294,025.

tions by a separator element 6 extending flush with the marginal walls of the pad.

As premised, the separator is such as is calculated to check or retard luid flow to the next section until complete diffusion has ensued in the top section and to then permit seepage through it to the bottom section where the same diffusing action' occurs due to the presence of the usual garment protection 7. Evidently a number of materials are well qualified for the purpose. One that has been hi hly satisfactor is lightly waxed crepe ce Iulose paper. his is in the form of a thin wafer-like sheet or film. Whatever proper material is used the eect of the presence of the separator is completely to utilize by diusion each pad stage before penetration occurs to the next pad stage.

rIhe inventive idea may be practiced more effectively by increasing the number of separating films or sheets. It does not necessarily follow' that the overall depth of the pad must, in such instance, be increased. In fact the use of separators or diffusion elements warrants a reduction of the regular thickness which of course makes for greater conformability and comfort. Fig. 2 shows two separators 8 making for three pad stages; and Fig. 3 shows three separators 9, resulting in a four-stage pad Evidently the invention is not limited to any special type of filling or absorbent medium and crepe cellulose paper, cotton, wood or4 cellulose pulp, or mixtures thereof or any other suitable material'that may be disposed in layer form, will function well with the separators or diiusion elements.

Under some conditions it is possible to employ separators perforated, as at 10, in Fig. 4.

In higher priced napkins there may be combined withthe new pad a soft fabric element, Fig. 5, having a waterproof backing 11 andv waterproof sides 12 with pervious Win s 13 folded over the top of the pad.

O viously in order to complete the article the usual gauze wrapper is employed.

Having described the nature and objects of the invention what is claimed is A sanitary napkin embodying a multi- :stage absorbent pad, and baies defining said stages and comprising film-like sheets of lsoft conformable material inherently porous but impregnated to make them for a. defi- 5 nite time interval fluid-repellent whereby they are ei'eetive to promote diffusion throughout substantially the entire erosssection of the exposed pad stage, whereupon the proximate baffle sucoumbs to slow seepage l0 action and exposes the next ad stage.

In testimony whereof I affix my signature.

GUSTAVE S. MATHEY.

6.0.l v I

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2730788 *Oct 2, 1952Jan 17, 1956Ralph E PiattUndertaking appliance for covering portions of the torso
US2815027 *Dec 12, 1955Dec 3, 1957Hilda S MakelaSanitary pad
US2929379 *Jul 29, 1957Mar 22, 1960Poulsen Else VitaSanitary napkin
US3071138 *Nov 7, 1958Jan 1, 1963Garcia GustavoSanitary napkin
US3367334 *Mar 31, 1965Feb 6, 1968Samuel R. TestaSanitary napkin
US3595235 *May 16, 1969Jul 27, 1971Georgia Pacific CorpMultilayer absorbent pad
US3612054 *Jul 24, 1969Oct 12, 1971Yamanouchi Pharma Co LtdSanitary napkin
US3651809 *Feb 24, 1970Mar 28, 1972Kimberly Clark CoBaffle for sanitary protection devices
US3736931 *Jun 9, 1971Jun 5, 1973J GlassmanCatamenial napkin
US3762415 *Mar 6, 1968Oct 2, 1973Maxine B MoneyAnti-bacterial menses absorbing pads
US4568341 *Mar 10, 1983Feb 4, 1986James G. MitchellAbsorbent pads, incontinence care products and methods of production
US6503233Oct 2, 1998Jan 7, 2003Kimberly-Clark Worldwide, Inc.Absorbent article having good body fit under dynamic conditions
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
US6673982Oct 2, 1998Jan 6, 2004Kimberly-Clark Worldwide, Inc.Absorbent article with center fill performance
US6695827Nov 27, 2002Feb 24, 2004Kimberly-Clark Worldwide, Inc.Absorbent article having good body fit under dynamic conditions
US7265258Sep 12, 2003Sep 4, 2007Kimberly-Clark Worldwide, Inc.Absorbent articles with nits and free-flowing particles
US7429689Sep 15, 2003Sep 30, 2008Kimberly-Clark Worldwide, Inc.Absorbent article with center fill performance
DE1168604B *Jul 6, 1957Apr 23, 1964Else Vita Poulsen Geb RasmusseMenstruationsbinde
DE1212246B *Apr 16, 1957Mar 10, 1966Johnson & JohnsonMonatsbinde
Classifications
U.S. Classification604/381, 604/375
International ClassificationA61F13/15
Cooperative ClassificationA61F13/53708, A61F2013/53782
European ClassificationA61F13/537B