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Publication numberUS3342184 A
Publication typeGrant
Publication dateSep 19, 1967
Filing dateJan 13, 1964
Priority dateJan 13, 1964
Publication numberUS 3342184 A, US 3342184A, US-A-3342184, US3342184 A, US3342184A
InventorsJoa Curt G
Original AssigneeJoa Curt G
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary napkin with attachment means and method of making
US 3342184 A
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Description  (OCR text may contain errors)

C. G. JOA

Sept. 19, 19 7 SANITARY NAPKIN WITH ATTACHMENT MEANS AND METHOD OF MAKING 2 Sheets-Sheet 1 Filed Jan. 13, 1964 INVENTOR. C027- 6-. Jam

BY W, wym

ArrOP/VEYS Sept. 19, 1967 C. G. JOA

SANITARY NAPKIN WITH ATTACHMENT MEANS AND METHOD OF MAKING Filed Jan. 13, 1964 2 Sheets-Sheet 2 Q Q a "Q I T E J, 1} M Q A N 1-. i

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United States Patent 3,342,184 SANITARY NAPKIN WITH ATTACHMENT MEANS AND METHOD OF MAKING Curt G. Joa, Ocean Ridge, Fla. (Box 1121, Boyton Beach, Fla. 33435) Filed Jan. 13, 1964, Ser. No. 337,353 7 Claims. (Cl. 128--290) This invention relates to improvements in sanitary napkins.

In my United States Patent 2,481,929 a sanitary napkin with anchorage loops is disclosed. These loops, however, are attached by an uneconomical hand operation and this has militated against the use of such napkins.

In accordance with the present invention, fastening means, such as knots or loops or lumps, are provided in the end tabs of the napkin as part of a reinforcing strip which is within the napkin wrapper. Hand operations are eliminated by preforming on a machine a continuous reinforcing strip with loops, knots, etc. and then feeding the continuous reinforcing strip into the wrapper strip concurrently with fabrication of the napkin.

Other objects, advantages and features of the invention will appear from the following disclosure in which:

FIGURE 1 is a diagrammatic view showing a sanitary napkin embodying the present invention attached to a support belt.

FIGURE 2 is a perspective view of a sanitary napkin embodying one form of the present invention.

FIGURE .3 is a fragmentary perspective view of a modified embodiment of the present invention.

FIGURE 4 is a fragmentary perspective view of a still further modified embodiment of the present invention.

FIGURE 5 is a view of a continuous reinforcing strip prefabricated with knots and loops in spaced relation therealong.

FIGURE 6 is a diagrammatic view illustrating a process for fabricating napkins according to the present invention.

Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structure. The scope of the invention is defined in the claims appended hereto.

Any conventional sanitary napkin construction is adapted for modification in accordance with the present invention. My prior United States patent application Ser. No. 249,367, filed Jan. 4, 1963, shows an example of a sanitary napkin with a relatively weak, but soft, nonwoven outer wrapper having a relatively strong reinforcing strip disposed longitudinally therein. Napkins embodying the present invention may have a similar construction and include an outer relatively weak wrapper 10, a filler pad 11 and a relatively strong reinforcing strip 12. The wrapper 10 extends beyond the ends of the pad 11 to form end tabs 13.

In accordance with the present invention, the reinforcing strip 12 is provided with lumps, generically indicated at 14 in FIGURE 6, such as the knot 18, loop 16, heat sealing lumps 17, etc., disposed in the end tabs 13 and which provide fastening means which may be engaged through the clips which are conventionally provided on support belt 19, as shown in FIGURE 1. Accordingly, the napkin end tabs 13 are inherently provided with fastening means which coact with the clips 15 on the support belt, without requiring the use of pins, etc.

The exact mode of producing the lumps 14 is broadly immaterial. Several different techniques are herein illustrated. In FIGURE 2, the lumps are provided by knotting the reinforcing strip 12 at 18. In FIGURE 4, the lumps are provided by forming the strip 12 into loops 16. The bight of the loop is open and its neck may be sealed by the machine application of a spot 17 of polyethylene plastic material.

FIGURE 3 shows another alternative in which a loop 16 is formed by simply knotting the strip 12 at 18, thus providing both a knot 18 and a loop 16. Access to the loop 16 in either of the embodiments shown in FIGURES 3 and 4 is gained by opening the end tab at its extreme end 21.

FIGURES 5 and 6 illustrate novel procedures for providing napkins with a reinforcing strip having lumps, knots, loops, etc. The reinforcing strip 12 is prefabricated in continuous form with knots 18 and loops 16. Alternatively, the strip 12 could be formed simply with knots 18, as shown in FIGURE 2, or with loops 16, only, as shown in FIGURE 4.

As shown in FIGURE 6, such a continuous strip 12 may be stored on a spool 22. A sanitary napkin can be formed as shown in my copending application aforesaid, in which the wrapper strip 10 is fed from a spool 23 over a conveyor 24. The filler pads 11 are fed in the direction of arrow 25 into the tube formed by folding the wrapper 10 around the filler pads and the reinforcing strip 12 with lumps 14 is fed concurrently into the tube with the lumps 14 so related to the filler pads 11 as to fall in the gaps 26 between adjacent pads 11. A polyethylene bead of sealing material may be injected by the nozzle 27 as shown in my copending application aforesaid and in my application Ser. No. 95,767.

Wrapper strip 10 may now be severed through the gaps and between adjacent lump 14 by the cooperating knife 28 and anvil 29 on the rotary wheels 31, 32, thus to subdivide the wrapper strip into discrete napkins having end tabs with lumps therein.

If desired, I may also provide the wheels 31, 32 with heat sealing dies 33, 34 to heat seal the lump against the end tabs in a zone or area 35 as shown in FIGURE 2.

As is clear from FIGURE 5 the lumps are spaced along the strip 12 properly so that they may be synchronized with the filler pad feeder so that there will be two lumps in each gap between the pads in the wrapper tube 10, thus to provide one lump at each end of each napkin.

By feeding the reinforcing strip 12 in a continuous strip, as above noted, the napkins embodying the present invention can be made on existing napkin fabricating machines without extensive modification thereof.

I claim:

1. The method of fabricating a sanitary napkin having end tabs with lumps therein and comprising the steps of feeding a strip of wrapper material, feeding pads onto said material strip in spaced relation to leave gaps between said pads, feeding a reinforcing strip with preformed lumps spaced along the strip a distance equal to the spacing of the gaps to feed the strip onto said material with the lumps in said gaps, forming the wrapper strip around the pads and reinforcing strip, and severing said wrapper strip across said gaps to subdivide it into discrete napkin portions having end tabs with lumps therein, plus the preliminary step of preforming the reinforcing strip with knots spaced along its length to constitute said lumps.

2. The method of fabricating a sanitary napkin having end tabs with lumps therein and comprising the steps of feeding a strip of wrapper material, feeding pads onto said material strip in spaced relation to leave gaps between said pads, feeding a reinforcing strip with preformed lumps onto said material with the lumps in said gaps, forming the wrapper strip around the pads and reinforcing strip, and severing said wrapper strip across said gaps to subdivide it into discrete napkin portions having end tabs with lumps therein, plus the preliminary step of preforming the reinforcing strip with loops spaced along its entire length to constitute said lumps.

3. The method of fabricating a sanitary napkin having end tabs with lumps therein and comprising the steps of feeding a strip of wrapper material, feeding pads onto said material strip in spaced relation to leave gaps between said pads, feeding a reinforcing strip with preformed lumps onto said material with the lumps in said gaps, forming the wrapper strip around the pads and reinforcing strip, and severing said wrapper strip across said gaps to subdivide it into discrete napkin portions having end tabs with lumps therein, plus the preliminary step of preforming the reinforcing strip with knots and loops spaced along its length to constitute said lumps.

4. A sanitary napkin comprising a pad, a wrapper about the pad and which has end tabs extending beyond the pad, a reinforcing strip within the wrapper and extending from one end tab to the other, and fastening knots formed in said strip in the respective end tabs.

5. A sanitary napkin comprising a pad, a wrapper about the pad and which has end tabs extending beyond the pad, a reinforcing strip within the wrapper and extending from one end tab to the other, and fastening loops formed in said strip in the respective end tabs.

6. A sanitary napkin comprising a pad, a wrapper about the pad and which has end tabs extending beyond the pad, a reinforcing strip within the wrapper and extending from one end tab to the other, and fastening loops and knots formed in said strip in the respective end tabs.

7. A sanitary napkin comprising a pad, a wrapper about the pad and which has end tabs extending beyond the pad, a reinforcing strip within the wrapper and extending from one end tab to the other, and fastening loops with a spot of plastic on the neck of said loops formed in said strip in the respective end tabs.

References Cited UNITED STATES PATENTS 2,262,275 11/ 1941 F-ourness et al 128-.29O 2,578,664 12/1951 Beery et al. 1287290 2,773,503 12/1956 Brownlee et al. 128290 FOREIGN PATENTS 6,370 1904 Great Britain. 140,202 3/1920 Great Britain. 495,366 11/1938 Great Britain.

RICHARD A. GAUDET, Primary Examiner.

CHARLES F. ROSENBAUM, Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2262275 *Apr 20, 1939Nov 11, 1941Int Cellucotton ProductsMethod and machine for making sanitary napkins
US2578664 *May 8, 1947Dec 18, 1951Johnson & JohnsonSanitary napkin
US2773503 *Sep 3, 1954Dec 11, 1956Personal Products CorpAbsorbent product
GB140202A * Title not available
GB495366A * Title not available
GB190406370A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3508549 *Dec 26, 1968Apr 28, 1970Laurel A HendricksSanitary napkin
US3613688 *Sep 21, 1964Oct 19, 1971Moelnlycke AbSanitary towel
US6387084Feb 13, 1996May 14, 2002Kimberly-Clark Worldwide, Inc.Sanitary napkin with garment attachment panels
US6902552Apr 4, 2003Jun 7, 2005Kimberly-Clark Worldwide, Inc.Curved sanitary napkin with garment attachment panels
US7063689Dec 3, 2001Jun 20, 2006Kimberly-Clark Worldwide, Inc.Sanitary napkin with garment attachment panels
US7303708Apr 8, 2005Dec 4, 2007Curt G. Joa, Inc.Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US7374627Apr 7, 2005May 20, 2008Curt G. Joa, Inc.Method of producing an ultrasonically bonded lap seam
US7398870Oct 5, 2005Jul 15, 2008Curt G. Joa, IncArticle transfer and placement apparatus
US7452436Mar 9, 2006Nov 18, 2008Curt G. Joa, Inc.Transverse tape application method and apparatus
US7533709May 31, 2005May 19, 2009Curt G. Joa, Inc.High speed vacuum porting
US7537215Apr 22, 2005May 26, 2009Curt G. Joa, Inc.Method and apparatus for securing stretchable film using vacuum
US7618513May 31, 2005Nov 17, 2009Curt G. Joa, Inc.Web stabilization on a slip and cut applicator
US7638014Mar 18, 2005Dec 29, 2009Curt G. Joa, Inc.Method of producing a pants-type diaper
US7640962Apr 20, 2005Jan 5, 2010Curt G. Joa, Inc.Multiple tape application method and apparatus
US7703599Apr 12, 2005Apr 27, 2010Curt G. Joa, Inc.Method and apparatus for reversing direction of an article
US7708849Jan 4, 2006May 4, 2010Curt G. Joa, Inc.Apparatus and method for cutting elastic strands between layers of carrier webs
US7770712Feb 17, 2006Aug 10, 2010Curt G. Joa, Inc.Article transfer and placement apparatus with active puck
US7780052May 18, 2006Aug 24, 2010Curt G. Joa, Inc.Trim removal system
US7811403May 7, 2007Oct 12, 2010Curt G. Joa, Inc.Transverse tab application method and apparatus
US7861756May 8, 2007Jan 4, 2011Curt G. Joa, Inc.Staggered cutting knife
US7909956Aug 13, 2009Mar 22, 2011Curt G. Joa, Inc.Method of producing a pants-type diaper
US7975584Feb 21, 2008Jul 12, 2011Curt G. Joa, Inc.Single transfer insert placement method and apparatus
US8007484Apr 1, 2005Aug 30, 2011Curt G. Joa, Inc.Pants type product and method of making the same
US8016972May 8, 2008Sep 13, 2011Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8172977Apr 5, 2010May 8, 2012Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8182624Mar 11, 2009May 22, 2012Curt G. Joa, Inc.Registered stretch laminate and methods for forming a registered stretch laminate
US8293056Aug 24, 2010Oct 23, 2012Curt G. Joa, Inc.Trim removal system
US8398793Jul 20, 2007Mar 19, 2013Curt G. Joa, Inc.Apparatus and method for minimizing waste and improving quality and production in web processing operations
US8417374Apr 26, 2010Apr 9, 2013Curt G. Joa, Inc.Method and apparatus for changing speed or direction of an article
US8460495Dec 27, 2010Jun 11, 2013Curt G. Joa, Inc.Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8557077Mar 21, 2011Oct 15, 2013Curt G. Joa, Inc.Method of producing a pants-type diaper
US8656817Mar 7, 2012Feb 25, 2014Curt G. JoaMulti-profile die cutting assembly
US8663411Jun 6, 2011Mar 4, 2014Curt G. Joa, Inc.Apparatus and method for forming a pant-type diaper with refastenable side seams
US8673098Oct 25, 2010Mar 18, 2014Curt G. Joa, Inc.Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8794115Jul 7, 2011Aug 5, 2014Curt G. Joa, Inc.Single transfer insert placement method and apparatus
Classifications
U.S. Classification604/366, 19/145, 604/402, D24/125
International ClassificationA61F13/64, A61F13/56
Cooperative ClassificationA61F13/64
European ClassificationA61F13/64