AU713354B2 - Tampon applicator - Google Patents

Tampon applicator Download PDF

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Publication number
AU713354B2
AU713354B2 AU58454/98A AU5845498A AU713354B2 AU 713354 B2 AU713354 B2 AU 713354B2 AU 58454/98 A AU58454/98 A AU 58454/98A AU 5845498 A AU5845498 A AU 5845498A AU 713354 B2 AU713354 B2 AU 713354B2
Authority
AU
Australia
Prior art keywords
slide
grip piece
tampon applicator
predetermined breaking
outer sleeve
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.)
Ceased
Application number
AU58454/98A
Other versions
AU5845498A (en
Inventor
Hans-Werner Schoelling
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.)
Johnson and Johnson Consumer Inc
Original Assignee
McNeil PPC Inc
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
Priority claimed from DE9014464U external-priority patent/DE9014464U1/en
Application filed by McNeil PPC Inc filed Critical McNeil PPC Inc
Priority to AU58454/98A priority Critical patent/AU713354B2/en
Publication of AU5845498A publication Critical patent/AU5845498A/en
Application granted granted Critical
Publication of AU713354B2 publication Critical patent/AU713354B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
    • A61F13/26—Means for inserting tampons, i.e. applicators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
    • F02B2043/106—Hydrogen obtained by electrolysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/241—Cylinder heads specially adapted to pent roof shape of the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F02F2007/0092—Transparent materials

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Description

1- P/00/0 1 1 Regulation 3.2
AUSTRALIA
Patents Act 1 990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Invention Title: TAMPON APPLICATOR The following statement is a full description of this invention, including the best method of performing it known to us: GH REF: P20721-CO/RPW:SLC
/A
Tampon applicator The invention relates to a tampon applicator made of plastic, especially for feminine hygiene, consisting of an approximately cylindrical outer sleeve which is intended for receiving a tampon and in the rear end of which there is inserted in an axially nondisplaceable manner a hollow grip piece, in which a slide is arranged so as to be axially movable.
As a rule, the outer sleeve, the grip piece and the slide of tampon applicators of this known type are produced separately by an injection-moulding process and subsequently assembled after insertion of the tampon into the outer sleeve, by inserting the slide into the grip piece and subsequently fitting the grip piece onto the rear end of the outer sleeve. This type of production is, of course, relatively time-consuming and expensive.
The object on which the invention is based is therefore to improve a tampon applicator of the abovementioned known type in such a way that its production and assembly can be accomplished with less expenditure in terms of machinery and time.
The invention achieves this object by the outer face of the slide being connected, in the vicinity of 0. its front end, to the inner wall of the grip piece by means of at least one predetermined breaking point.
This makes it possible to produce the tampon applicator from just two injection-moulded parts, allowing the expenditure on machinery and assembly to be reduced considerably. At the same time, it is ensured that the slide is held captively in the grip piece by the at least one predetermined breaking point until the tampon applicator is put to use.
-2- The invention is developed further by the features in the subclaims.
The invention is described in more detail below by means of the drawing of an exemplary embodiment. In the drawing: Figure 1 shows a central, partly broken-away longitudinal section through the tampon applicator with the grip piece, connected to the slide by predetermined breaking points, and Figure 2 shows an axial view in the direction of the arrow in Fig. i.
In the figures, a tampon applicator 10 for feminine hygiene is shown, which consists of an approximately cylindrical outer sleeve 12, a tampon 14 inserted therein, a grip piece 16 and a slide 18. The outer sleeve 12, the grip piece 16. and the slide 18 consist of plastic such as polyethylene, polypropylene or, preferably, a biodegradable plastic, such as mixtures of polyhydroxyvaleric acid or polyhydroxybutyric acid, or of a substance dissolving in connection with water, such as for example polyvinyl alcohol.
The hollow grip piece 16 is inserted in an S axially non-displaceable manner into the rear end of the outer sleeve 12 and receives the slide 18 in an axially movable manner. The outer face of the slide 18 is connected, in the vicinity of its front end 32, to the inner wall 13 of the grip piece 16- by means of three predetermined breaking points 20, 22, 24. The :""predetermined breaking points 20, 22, 24 consist in each case of a thin plastic skin. By connecting the grip piece 16 to the slide 18, a one-part moulding is created, so that the outer sleeve 12 on the one hand and the one-part moulding comprising the grip piece 16 and the slide 18 on the other hand can be injectionmoulded in just two moulds.
Fig. 1 shows that the three predetermined breaking points 20, 22, 24 are arranged between the slide 18 and the front end 26 of a guide shank 28, of 3 reduced diameter, of the grip piece 16 for the slide 18. The guide shank 28 merges towards the front end of tho grip piece 16 into a coupling end 30, of which the inside and outside diameters are widened in relation to the guide shank 28 of the grip piece 16.
The front end 32 of the slide 18 is likewise widened essentially cylindrically in relation to the rear portion of its length to form an outer annular shoulder 34. The outer edge 36 of the annular shoulder 34 is connected to the front end 26 of the guide shank 28 of the grip piece 16 by means of the three predetermined breaking points 20, 22, 24, which are spaced at equal circumferential angles from one another. The annular shoulder 34 of the slide 18 is widened in the region of these predetermined breaking points 20, 22, 24 by means of three outer longitudinal ribs 38, 40, 42 located at the front end 32 of the slide 18, in such a way that, during injection moulding, the outer edge 36 of the annular shoulder 34 permits gating to the grip piece 16 via the predetermined breaking points only in the region of these longitudinal ribs 38, 40, 42.
The rear end of the outer sleeve 12 partially engages over the coupling end 30 of the grip piece 16 and by means of an inner annular bead 44 engages with a catch fit into an annular groove 46 on the outer face of the said coupling end 30, the profile of the annular groove 46 corresponding to that of the annular bead 44.
The profile of the inner annular bead 44 of the outer sleeve 12 is formed by a front annular internal 30 shoulder 50. From the inner edge 52 of this internal shoulder 50 there extends a cylindrical portion 54.
This cylindrical portion ends at about half the width of the bead profile with a radial relief 55 of smaller radial width. This relief 55 merges into a conical surface 56. The conical surface 56 widens to a diameter at the rear end face 58 of the outer sleeve 12 which is dimensioned larger than the diameter exhibited by the inner wall 48 of the outer sleeve 12 and, in the 4 assembled state of the tampon applicator 10, by the outer face, bearing against the inner wall 48 in front of the annular bead 44, of the front coupling end 30 of the grip piece 16, engaging over the annular bead. As can be seen, the outside diameter of the coupling end corresponds to the outside diameter of the outer sleeve 12, while the outside diameter of the front part, lying in front of the annular bead, of the coupling end 30 is adapted to the diameter of the inner wall 48 of the outer sleeve 12. The front end face of the coupling end 30 is tapered conically forwards, in order to facilitate the insertion of the coupling end 30 into therear end of the outer sleeve 12.
As a departure from the preferred exemplary embodiment described above, if appropriate there may also be provided more than three predetermined breaking points, or else just a single predetermined breaking point, extending over the entire circumference of the annular shoulder of the slide, which point is connected S20 to the inner wall of the grip piece in the form of a thin plastic skin. The catch connection between the fe 0 front coupling end and the outer sleeve permits a simple assembly by insertion of the coupling end into the rear end of the outer sleeve, the predetermined breaking connection between the slide and the grip .*.piece at the same time being broken, so that the slide is mounted by the widened front end captively in the coupling end of the grip piece, but axially displaceably in the latter in the discharge direction of the tampon. Furthermore, it goes without saying that, if appropriate, the slide may also have a different form, as long as it is ensured that, once the predetermined breaking connection with the grip piece has been destroyed, it cannot fall out of the latter to the rear.
List of reference numerals 12 14 16 18 22 24 26 28 32 34 36 38 42 44 46 S 48 50 52 25 54 56 58 60 Tampon applicator Outer sleeve Tampon Grip piece Slide Predetermined breaking points Predetermined breaking points Predetermined breaking points Front end Guide shank Coupling end Front end (slide) Annular shoulder (slide) Outer edge (annular shoulder) Longitudinal ribs (slide) Longitudinal ribs (slide) Longitudinal ribs (slide) Inner annular bead (outer sleeve) Annular groove (grip piece) Inner edge (outer sleeve) Annular internal shoulder (annular bead) Inner edge of the annular shoulder Cylindrical portion (annular bead) Radial relief (annular bead) Conical surface (annular bead) Rear end face (outer sleeve) Front end face (grip piece) 09* 9 9 I .9.
a a .9.
9.
*9 9 9

Claims (3)

  1. 2. Tampon applicator according to claim 1, wherein 20 the grip piece comprises a guide shank for the slide which merges towards the front end of the grip piece into a coupling end, the coupling end has inside and outside *diameters which are larger than an outside diameter of the •guide shank, and the at least one predetermined breaking point is arranged between the slide and a front end of the 25 guide shank.
  2. 3. Tampon applicator according to claim 2, wherein the front end of the slide is widened to form an outer annular shoulder, having an outer edge which is connected to the front end of the guide shank of the grip piece by means of a plurality of predetermined breaking points, which are spaced at equal arcs about the outer edge.
  3. 4. Tampon applicator according to claim 3, wherein the outer annular shoulder of the slide is widened proximate the predetermined breaking points by means of a plurality of outer longitudinal ribs located at the front \\GHSYDNT1\Users\Speci\300 399\300 349\31026.doc 24/11/98 7 end of the slide. Tampon applicator according to claim 4, wherein the outer sleeve has an inner wall and an outer wall, and the rear end of the outer sleeve partially engages over an outer face of the coupling end of the grip piece by means of an inner annular bead having a profile that engages with a catch fit into an annular groove on the outer face of said coupling end, wherein the annular groove has a profile corresponding to that of the annular bead. Dated this 24th day of November 1998 S 15 MCNEIL-PPC, INC. By their Patent Attorneys GRIFFITH HACK \\GHSY1lNT1\Users\Speci\300 399\300 349\31026.doc 24/11/98
AU58454/98A 1990-10-18 1998-03-16 Tampon applicator Ceased AU713354B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58454/98A AU713354B2 (en) 1990-10-18 1998-03-16 Tampon applicator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9014464U DE9014464U1 (en) 1990-10-18 1990-10-18 Tampon applicator
DE9014464 1990-10-18
AU13500/95A AU1350095A (en) 1990-10-18 1995-02-27 Tampon applicator
AU58454/98A AU713354B2 (en) 1990-10-18 1998-03-16 Tampon applicator

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU13500/95A Division AU1350095A (en) 1990-10-18 1995-02-27 Tampon applicator

Publications (2)

Publication Number Publication Date
AU5845498A AU5845498A (en) 1998-05-28
AU713354B2 true AU713354B2 (en) 1999-12-02

Family

ID=25615169

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58454/98A Ceased AU713354B2 (en) 1990-10-18 1998-03-16 Tampon applicator

Country Status (1)

Country Link
AU (1) AU713354B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411647A (en) * 1980-08-11 1983-10-25 Kao Soap Co., Ltd. Tampon applicator
US4921474A (en) * 1985-10-18 1990-05-01 Uni-Charm Corporation Sanitary tampon applicator
EP0440233A1 (en) * 1990-02-01 1991-08-07 McNEIL-PPC, INC. Tampon applicator, especially for feminine hygiene

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411647A (en) * 1980-08-11 1983-10-25 Kao Soap Co., Ltd. Tampon applicator
US4921474A (en) * 1985-10-18 1990-05-01 Uni-Charm Corporation Sanitary tampon applicator
EP0440233A1 (en) * 1990-02-01 1991-08-07 McNEIL-PPC, INC. Tampon applicator, especially for feminine hygiene

Also Published As

Publication number Publication date
AU5845498A (en) 1998-05-28

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