US2455925A - Manufacture of absorbent tampons - Google Patents

Manufacture of absorbent tampons Download PDF

Info

Publication number
US2455925A
US2455925A US45636942A US2455925A US 2455925 A US2455925 A US 2455925A US 45636942 A US45636942 A US 45636942A US 2455925 A US2455925 A US 2455925A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
tampon
web
cord
cotton
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Ganz Henry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Personal Products Co
Original Assignee
Personal Products Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/20Tampons, e.g. catamenial tampons; Accessories therefor
    • A61F13/2082Apparatus or processes of manufacturing
    • A61F13/2085Catamenial tampons

Description

Dec. 14, 1948. GANZ 2,455,925

' MANUFACTURE OF ABSORBENT TAMPONS Filed Aug. 27, 1942 2 She'ets-Sheet 1 Dec. 14,1948. j H.GAI\ IZ 2,455,925

MANUFACTURE OF ABSORBENT TAMPONS Filed Aug. 27, 1942 2 Sheets-Sheet 2.

INVENTOR. HENR Y GA NZ.

Patented Dec. 14, 1948 UNITED MANUFACTURE OF ABSoRBENT'rAMPONs Henry Ganz, Ridgefield Park, J assi gnor to The Personal Products Corporation, New

Brunswick, N. J., a corporationfof New Jersey Original application July 251, 1940, Serial No. 347,087. Divided and this application August 27, 1942, Serial No. 456,369 r l This invention relates to the manufacture'of absorbent tampons and more particularly to tampons of this character which are especially adapted for use as vaginal tampons, and is a division of my co-pending application Serial Number 347,087, filed July 24, 1940.

It is becoming more and more the custom to use vaginal tampons for feminine hygiene, although the manufacture of such tampons involves several problems.

It is the purpose of this invention to provide a method of manufacturing a tampon which re.- sults in an improved tampon especially suited for use as a vaginal tampon.

Other objects and advantages will be apparent to those skilled in the art from the following detailed description, particularly when read in connection with the drawings in which: 7

Figure 1 is a plan View of the cord tying apparatus illustrating a web of cotton in position thereon prior to drawing a cord therearound.

Figure 2 is a perspective illustrating a Web of cotton formed to size and with the withdrawal cord attached, placed in the guiding portion of the die preparatory to the preforming operation.

Figure 3 is a verticalsection through the forming die illustrating the web in position prior to being preformed.

Figure 4 is a vertical section through the center of the forming die illustrating the Web tucked into the die in the first or preforming stage.

Figure 5 is a similar vertical section through the forming clie illustrating the second or final forming or compression stage.

Figure 6 is a similar vertical section through the die and illustrating discharge of the completed tampon.

Figure '7 is a vertical section through the center of a tampon container and applicator illustrating a tampon therein.

In accordance with this invention, a web of cotton l is first formed of a size considerably larger than the finished tampon, that is, a web is formed approximately two inches wide by six inches long and three-quarters of an inch thick, the size depending of course first upon the weight of cotton desired to be incorporated in the tampon and second upon the finished size of the tampon. This web may be formed from a single thickness of cotton or a folded web or a plied web with any suitable number of plies.

In the illustrated embodiment of this invention (Fig. 1) the next step is the attachment of the withdrawal cord 2 to the formed web of cote ton, although it will be obvious that this cord "as it passes around thetube.

may be attached to the cotton. web at a subse} quent time in the formation ofthe tampon. As illustrated, the cord is measured, cut, and attached by what is termed a string cutting unit mounted .upon a table 3, one end of which supports the"cord or string holder 4, and the other end of which carries a block or pedestal 5 over which the withdrawal cord 2 is measured and upon which the'cotton web for the tampon is p a e p I In using the above unit, the operator threads the string or cord 2 from the string holder 4 under a guide and friction clamp 1, pasta cutting-elf knife 9," across the block 5, around a suction tube l3, projecting through the block 5 adjacent one edge thereof, and back to a point adjacent the knife.v In so doing a loopof cord is formed and the proper length of cord is measured with the two ends approximately equal. After the cord has been looped and measured in this manner, the operator actuates the cutting knife 9 by foot tread l5 or any other suitable device to sever the measured length of cord.

The operator then places the cotton web I uponthe block 5 over the cord and grasps both ends of the cord, passes them over the web, and

inserts them into the suction tube, thus passing the ends through the loop formed by the cord The ends of the cord are drawn down through the tubeby suction, thus forming a loose slip knot. The operator then lifts the cotton web from the table with one hand, thusdisen'gaging the looped end of the cord from the suction tube and grasps the ends of the cord with the other hand and draws the knot tight about the'cotton web. It will be observed that when the'cord is cut, a loose end remains between the guide or clamp 1 and the cuttingblade 9,- which"end may be grasped by the operator to withdraw and measure the succeeding length of cord.

The web of ,cotton with'the withdrawal cord about its center, which cord materially reduces the width of 'the'web where it is fastened, is then placed over a die 2| with the cord 2 depending thereinto for the first or preforming stage in the formation of the tampon.

Die 2i' is a tubular die, having a bore 23- of the exact diameter of the finished tampon and being tapered outwardly at its upper end as at 25 to facilitate 'entryof the cotton web into the bore. For'further guiding and positioning the web, the upper end of the die is provided with enlarged collar 21, formed with a groove 29 across its upper faceof somewhat less'width than the width of the cotton web, whereby the cotton web from which the tampon is formed is held in position in said slot in preparation for the first or preforming stage in the formation of the tampon.

Following positioning of the Web I over the die 2|, a preformin'g plunger 31 off considerably smaller "diameter tharrthe bore 23 of the die is forced into the die to fold and tuck the cotton into the die, and preform the web into a U-shaped formation and only slightlycompressing-thecotton as shown in Fig. 4. In so doing, the two legs of the now U-shaped cotton web are' formedgen orally into two complementary halfsectionsof a hollow cylinder. the tampon, plunger 3| is withdrawn preparatory to the final compression.

Following this preforming" of 5 byforoes resulting from longitudinal compression,

The web is given its final compression and formation by a second top plunger 33 (Fig. 5) of the same diameter as the bore of the die and'preferably having a stem orpilot 35 of much smaller diameter than the plunger 33': The pilot'end 35 is'resiliently or yieldab'lymounted'within a counter bore in the-plunger'33 and isspring'urged' outwardly by a spring 3T so as to be partially retractable after" a certain pressure against the pilot'end is reached.

Cooperating with theplun'ger 33 is a lower piston or" plunger 41 (Fig? 5) of approximately the diameter of the'bore of the die 21 whichlo-wer plunger is inserted into the bottom of. the die 2i prior to descent'of' plunger 33'. In it's. preferred form'the upperend of plunger 4| is rounded so asto imparta rounded lower end to the finished tampon. Likewise the lower end of the larger portion of the final compression plunger 33 is concavedso' as to impart a rounded upper end to the tampon whichfacilitates insertion thereof.

After the'lower plunger M has been inserted in position by any suitable means, the compressing plunger 33"is lowered by any suitablemeans to give. the final compression and formto the tampon. As plunger 33 descends, the smaller or pilot end 35 thereof enters theopening formed by. the first plunger 3! and serves two functions.

First the pilot end 35- limits and controls the gathering-or creasing of the cotton as the plunger descends and compresses the web, and insures 'the formation of only relatively small. irregular tucks or creases inthe Walls of the tampon, as the two half sections of the. hollow cylinder: are compressed, rather than the formation of regular and deepconvolutionsor pleats; These small tucks not only cause an even, rapid, and sub stantially'v simultaneous expansion of the tampon whenit is wetted, but prevent the formation, of any deep regular folds or pleats which if formed might tendto' permit leakage or seepage of moisture along the walls of the tampon when in use. Second the pilot end insures a permanent opening or orifice 43 in the forward or? insertion end of-the finished tampon, whichlopening provides additional surface exposed to fluids when: the tampon is in use. This alsoinsures animme-di ate expansion of the tampon as: soonasitbecomes wetted, which immediate expansion pre vents leakage or seepage of fluids-past the tampon.

After thetampon has been given its final form, that is, after plunger'33 hasbeen lowered, both plungers 33 and M are removed. and-the com pleted tampon 45 is ejected from the die by a thirdplunger 41" (Fig. 6)-having a diameter ap proximately that of the bore of the die.- This final form of a diameter approximately that of the bore ofithe die isretained bythetampon',

it is sufficiently flexible and soft so as not to cause any discomfort to the user and to permit of rapid and immediate absorption and expansion upon becoming wet. The tampon Will expand in all directions but mainly in the direction of its length due to the fact that the greatest compression was in this direction.

If desired, the finished tampon 45 may be placed inan applicator or containencompr ising atube" 51" of' proper diameter to snug-1y receive thefafinpon and" an ejecting plunger 53 for discharging-thetampon from the container appli- 'cator; 1

It will be apparent to those skilled in-the art thatfor purposes of this applicatlonthere-has been disclosed only the essential elements for ni anufa'oturingthe tampon in accordance with this invention. No attempt has been made to describeany operating mechanisms; such as mean'sfor operating the plungers in proper order and sequence, or for conveying the cotton web before and after attaching the cord to the various stations"in an automatic apparatus for forming the tampon because these features broadly are well withinthe scope of ability of a skilled mechanic.

It will also be obvious to those skilled in the artthat minor'changes may be made in details of construction and the sequence of operations without departing from the spirit and scope of this invention as defined in the claims appended hereto. For example, it is obvious that'the Withdrawal cordmaybe applied to the tampon before its formation, as shown in the drawings, or it may be forced through the tampon during anystage subsequent to formation of the tampon from the web of cotton.

Itwill also be obvious that any absorbent, fibrous material may be used in place of cotton, although the latter has certain advantages in that itdoesnot' have a tendency to mat upon wetting, as do certain other fibrous materials, and. it does not have the tendency to slough asdo certain other fibrous materials. Furthermore, it does have the characteristic of swelling upon becomir'igwetted; Whichcharacteristic isnot present in-certa'in other fibrous materials.

I claim:

1. The method of making a tampon which comprisesthe steps of forming a web of absorbent fibrous material" of predetermined contour and size greater than the sibe of the "shed tampon, s'i-nnfl-ta'neou'sly'com essingthe web of'fibrous material into a tit; tly compacted cylindrical tamporihavin'g an opening of relatively small diameter and appreciable depth in one end and maintaining s'aicli opening during compression to limitthe foldingof the fibrous Web, a'snit' is being compacted, to small foldsan'd pleats substantially less thanrthe diameter of the tampon.

The-method of making a tampon which-comprises' the'steps of forming a web of absorbent fibrousi material-pf predetermined contour and size greater than the size of the finished tampon, compressing the fibrous web'into a loosely compacted cylinder hollow at one end portion, then further compressing the loosely compacted cylinder into a tightly compacted cylindrical tampon while maintaining said hollow end portion to thereby simultaneously limit the folding of the fibrous material, as it is being further compacted, to small folds and pleats substantially less than the diameter of said tightly compacted tampon.

3. The method of making a tampon which comprises the steps of forming a web of absorbent fibrous material of predetermined contour and size greater than the size of the finished tampon, longitudinally compressing the fibrous web into a loosely compacted cylinder hollow at one end portion and then further compressing the loosely compacted fibrous cylinder into a tightly compacted cylindrical tampon while maintaining said hollow end portion to thereby simultaneously limit the folding 'of the fibrous material, as it is being further compacted, to small folds and pleats substantially less than the diameter of said tightly compacted tampon.

4. The method of making a tampon which comprises the steps of folding a web of absorbent fibrous material of predetermined contour and HENRY GANZ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 706,778 Bond Aug. 12, 1902 1,607,389 Claus Nov, 16, 1926 1,679,408 Davis et a1. Aug. 7, 1928 2,058,275 Voss Oct. 20, 1936 2,092,427 Ross Sept. 7, 1937 2,134,930 Reynolds Nov. 1, 1938 2,263,909 Webb Nov. 25, 1941 2,286,817 Knight June 16, 1942 2,330,257 Bailey Sept. 28, 1943

US2455925A 1940-07-24 1942-08-27 Manufacture of absorbent tampons Expired - Lifetime US2455925A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US2620799A US2620799A (en) 1940-07-24 1940-07-24 Absorbent tampon
US2455925A US2455925A (en) 1940-07-24 1942-08-27 Manufacture of absorbent tampons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2455925A US2455925A (en) 1940-07-24 1942-08-27 Manufacture of absorbent tampons

Publications (1)

Publication Number Publication Date
US2455925A true US2455925A (en) 1948-12-14

Family

ID=26995126

Family Applications (1)

Application Number Title Priority Date Filing Date
US2455925A Expired - Lifetime US2455925A (en) 1940-07-24 1942-08-27 Manufacture of absorbent tampons

Country Status (1)

Country Link
US (1) US2455925A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706986A (en) * 1952-04-24 1955-04-26 Sanitary Products Corp Rounded nose for tampons
US2764860A (en) * 1949-02-23 1956-10-02 James A Harrison Plug for test tubes and the like, and method and machine for making and inserting plugs
US2964039A (en) * 1955-01-18 1960-12-13 Personal Products Corp Preformed, arcuate sanitary napkins
US3343225A (en) * 1964-09-01 1967-09-26 Hahn Carl Dr Kg Apparatus for treating elongated deformable articles
US5566435A (en) * 1994-04-11 1996-10-22 Tambrands Inc. Method of attaching a tampon withdrawal cord with an overhand hitch knot
US6003216A (en) * 1997-03-31 1999-12-21 Mcneil-Ppc, Inc. Domed compressed tampons
US20050096619A1 (en) * 2003-10-31 2005-05-05 Rogerio Costa Hygienic tampon and an absorbent body used in the formation of a tampon
US20160100993A1 (en) * 2006-11-08 2016-04-14 Edgewell Personal Care Brands, Llc Tampon pledget for increased bypass leakage protection

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US706778A (en) * 1901-12-03 1902-08-12 Edmund Morse Pond Medicated tampon.
US1607389A (en) * 1923-10-26 1926-11-16 Bound Brook Oil Less Bearing Pressed-metal article and method of and machine for making same
US1679408A (en) * 1926-08-02 1928-08-07 Moraine Products Company Briquetting apparatus
US2058275A (en) * 1934-10-05 1936-10-20 Joseph A Voss Machine for compressing cotton wads
US2092427A (en) * 1932-07-13 1937-09-07 Ross Frederick Alexnader Catamenial device
US2134930A (en) * 1935-09-03 1938-11-01 Holly Pax Inc Tampon and method of making it
US2263909A (en) * 1936-06-29 1941-11-25 Universal Cotton Products Corp Machine for forming tampons
US2286817A (en) * 1940-01-04 1942-06-16 Personal Products Corp Tampon
US2330257A (en) * 1939-01-14 1943-09-28 John F Wallace Process for making tampons

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US706778A (en) * 1901-12-03 1902-08-12 Edmund Morse Pond Medicated tampon.
US1607389A (en) * 1923-10-26 1926-11-16 Bound Brook Oil Less Bearing Pressed-metal article and method of and machine for making same
US1679408A (en) * 1926-08-02 1928-08-07 Moraine Products Company Briquetting apparatus
US2092427A (en) * 1932-07-13 1937-09-07 Ross Frederick Alexnader Catamenial device
US2058275A (en) * 1934-10-05 1936-10-20 Joseph A Voss Machine for compressing cotton wads
US2134930A (en) * 1935-09-03 1938-11-01 Holly Pax Inc Tampon and method of making it
US2263909A (en) * 1936-06-29 1941-11-25 Universal Cotton Products Corp Machine for forming tampons
US2330257A (en) * 1939-01-14 1943-09-28 John F Wallace Process for making tampons
US2286817A (en) * 1940-01-04 1942-06-16 Personal Products Corp Tampon

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764860A (en) * 1949-02-23 1956-10-02 James A Harrison Plug for test tubes and the like, and method and machine for making and inserting plugs
US2706986A (en) * 1952-04-24 1955-04-26 Sanitary Products Corp Rounded nose for tampons
US2964039A (en) * 1955-01-18 1960-12-13 Personal Products Corp Preformed, arcuate sanitary napkins
US3343225A (en) * 1964-09-01 1967-09-26 Hahn Carl Dr Kg Apparatus for treating elongated deformable articles
US5566435A (en) * 1994-04-11 1996-10-22 Tambrands Inc. Method of attaching a tampon withdrawal cord with an overhand hitch knot
US6003216A (en) * 1997-03-31 1999-12-21 Mcneil-Ppc, Inc. Domed compressed tampons
US20050096619A1 (en) * 2003-10-31 2005-05-05 Rogerio Costa Hygienic tampon and an absorbent body used in the formation of a tampon
WO2005041833A1 (en) * 2003-10-31 2005-05-12 Johnson & Johnson Industrial Ltda A hygienic tampon and an absorbent body used in the formation of a tampon
CN1893901B (en) 2003-10-31 2011-05-04 强生消费者公司 A hygienic tampon and its manufacture method
US20160100993A1 (en) * 2006-11-08 2016-04-14 Edgewell Personal Care Brands, Llc Tampon pledget for increased bypass leakage protection
US10076452B2 (en) * 2006-11-08 2018-09-18 Edgewell Personal Care Brands, Llc. Tampon pledget for increased bypass leakage protection

Similar Documents

Publication Publication Date Title
US3509798A (en) Mechanism and method for producing cushioning dunnage
US3383449A (en) Method for producing an endless filter string
US3613522A (en) Method of producing cushioning dunnage
US2787271A (en) Sanitary napkin
US3847064A (en) Tobacco smoke filter
US2333049A (en) Cigarette flavoring means
US3860011A (en) Hollow filter
US2541387A (en) Method of and machine for packaging flexible sheets
USRE28674E (en) Catamenial device
US2331355A (en) Catamenial pad
US3661680A (en) Apparatus for successively forming disposable diapers
US2711051A (en) Bubble forming device
US2692676A (en) Suture needle package
US3162199A (en) Smoking articles having encapsulated tobacco additives and their manufacture
US3177872A (en) Vaginal tampon and applicator
US2295016A (en) Disposable absorbent sanitary pad
US3794024A (en) Catamenial wetness indicator
US3320956A (en) Catamenial tampon and method of making
US2777491A (en) Manufacture of draw-cord bags and the product thereof
US2499414A (en) Tampon
US3138159A (en) Absorbent product
US3857395A (en) Conformable absorbent tampon and inserter device therefor
US2440141A (en) Catamenial tampon
US2222088A (en) Tampon applicator
US3581744A (en) Laminated tube structure