EP0100204B1 - Applicator for creams and viscous liquids - Google Patents
Applicator for creams and viscous liquids Download PDFInfo
- Publication number
- EP0100204B1 EP0100204B1 EP19830304223 EP83304223A EP0100204B1 EP 0100204 B1 EP0100204 B1 EP 0100204B1 EP 19830304223 EP19830304223 EP 19830304223 EP 83304223 A EP83304223 A EP 83304223A EP 0100204 B1 EP0100204 B1 EP 0100204B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- applicator
- piston
- cream
- cap
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
- A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw
Definitions
- This invention relates to an applicator for creams and viscous liquids and more particularly to an applicator for cosmetic creams.
- the present invention overcomes these disadvantages and provides a dispenser or applicator for viscous fluids or creams in which the contents may be advanced from a container through a perforated applicator member whence they can be applied to the surface as desired.
- the device When the application has been completed the device may be withdrawn from the surface and stored indefinitely through substantial changes in ambient temperature and pressure without undesired extrusion of the stored material.
- the foam pad expands outwardly under the influence of pressurised perpa- ration and in one embodiment the initial position of the pad leaves a reservoir before the cosmetic material is urged into it.
- the pad of this known applicator is made of foam the pores of which, when occluded, would prevent the pad from springing back, the teaching of this document does not give any hint to solve the problem stored in this application.
- an applicator in accordance with this invention is characterised in that.
- the applicator member is a cap the central portion of which is provided with at least one orifice therein and is capable of springing back to its original shape upon release of the pressure to free said at least one orifice of cream or viscous fluid.
- an applicator comprises a container 10 which is normally, but not necessarily, a cylindrical tube.
- the lower end of the container is closed by a plug 12 having a lug 13 which engages an inwardly turned flange 11 at the bottom of the container.
- the plug 12 may be provided with a collar 14, which may be knurled, if desired, and by means of which the plug 12 may be rotated within the container 10.
- the outer surface of the plug 12 is threaded as at 15 and a hollow piston 16 is interposed between the plug 12 and the container 10. Its inner wall is threaded as at 17, these threads engaging the threads 15 of the plug 12.
- Fig. 1 At the right hand side of Fig. 1 the piston 16 is shown fully retracted and seated at the bottom of container 10, leaving a space 33 of variable volume above it, which space may be filled with the liquid or cream to be dispensed.
- the inner wall of container 10 is provided with vertical guide means in the form of ribs 18 which engage vertical slots 19 in the wall of piston 16 and prevent the piston from rotating.
- ribs 18 engage vertical slots 19 in the wall of piston 16 and prevent the piston from rotating.
- annular collar 20 which fits closely against the inner surface of the container and slides on that surface as the piston moves upwardly, thus providing a seal for the liquid material in space 33.
- the top of container 10 is split to provide an outer rim 21 which branches from a central wall 22 of the container.
- the outer rim 21 has an annular channel 23.
- container 10 The upper end of container 10 is closed by an applicator member in the form of a cap 24 which is held in place by the engagement of an inner ring 25 in the annular channel 23 of the container rim 21.
- the cap 24 has an outer section 27, which is relatively thick and an inner section 28 which is thin. At the center of the inner section there is provided an orifice 29.
- the cap 24 is made of a material which is strong and resilient so that if the inner section 28 is pressed it will bend inwardly toward the container 10, but when released will spring back to its original shape. For many purposes it will be desirable to have the cap 24 soft to the touch. Polypropylene and polyethylene will provide these properties.
- Cover 30 Over the cap 24 there may be placed a cover 30.
- Cover 30 has an inner ring 31 which bears on cap 24.
- Cover 30 is sized to make a friction fit with the side of the cap 24 and the container 10, as at 32.
- the cover 30 is removed and the collar 14 is rotated to move the piston 16 upwardly, forcing the cream or liquid material in the space 33 into the upper domelike part of cap 24, out the orifice 29 and onto the outer surface of the cap.
- the user then applies the liquid material to the surface to be coated. In doing so be presses the domed surface of the cap 24 against the surface to be coated, causing at least the inner section 28 of the cap 24 to be deformed inwardly as shown in Fig. 3.
- additional liquid material is squeezed from the top of the container through orifice 29.
- the applicator When the application has been completed, the applicator is removed from the coated surface, relieving the pressure on the cap 24.
- the thin, resilient inner section 28 then springs back to its original shape, leaving an air space 34 at the top of the cap and freeing the orifice of liquid material.
- This air space 34 acts as a reservoir to receive liquid material caused to expand from the space 33 by changes in temperature or pressure and avoiding undesired extrusion of such material through orifice 29.
- the materials used to make the applicator can be varied widely. For various reasons including texture, economy and chemical inertness polypropylene is preferred, though for some parts, for example, the cover 30, low density polyethylene is the substance of choice. Obviously more expensive materials such as nylon, polymethylmethacrylate, or other plastics, or various rubbers, may be employed, as may metals such as stainless steel.
- a central threaded rod may be used to advance a piston to extrude the stored material in a fashion analogous to that shown in United States Patents Nos. 2,935,191 and 2,818,167.
- the container may be a simple squeeze bottle.
Landscapes
- Coating Apparatus (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Description
- This invention relates to an applicator for creams and viscous liquids and more particularly to an applicator for cosmetic creams.
- Many products, and particularly cosmetic products, take the form of creams or viscous liquids. Among such materials there may be mentioned skin creams, sun-shield lotions and especially deodorants and antiperspirants. Various types of applicators or dispensers have been proposed for such substances. Among these have been dispensers in which the cream is forced out of a tube having a perforated head by the pressure of a piston advanced inside the tube. The piston causes the fluid material to be forced through the perforations in the dispenser head and the material is applied by rubbing the head on the surface to be coated, the head thus serving as an applicator member.
- One difficulty which has arisen with such dispensers is that after use fluid material remains lodged in the perforations of the head, or just below the head. If the dispenser is then subjected to an increase in temperature or possibly a decrease in atmospheric pressure, even to a relatively modest extent, the fluid will flow out of the perforated head. Often material as extruded will dry and cake, making it difficult to use the dispenser and presenting an unsightly appearance.
- The present invention overcomes these disadvantages and provides a dispenser or applicator for viscous fluids or creams in which the contents may be advanced from a container through a perforated applicator member whence they can be applied to the surface as desired. When the application has been completed the device may be withdrawn from the surface and stored indefinitely through substantial changes in ambient temperature and pressure without undesired extrusion of the stored material.
- GB-A-1358608 discloses cosmetic applications in which a piston-expelled fluent cosmetic preparation is forced through the pores of an applicator member in the form of a foam pad to impregnate the foam pad with the preparation. The pore size is said to be small enough to prevent dripping when impregnated but large enough to permit the preparation to be pressed through the pad during use.
- In all the embodiments disclosed in GB-A-1358608, the foam pad expands outwardly under the influence of pressurised perpa- ration and in one embodiment the initial position of the pad leaves a reservoir before the cosmetic material is urged into it. However, since the pad of this known applicator is made of foam the pores of which, when occluded, would prevent the pad from springing back, the teaching of this document does not give any hint to solve the problem stored in this application.
- What constitutes an applicator according to this invention is set forth in the following claim 1, the classifying portion of which is drawn from the disclosure of GB-A-1358608.
- An applicator in accordance with this invention is characterised in that. the applicator member is a cap the central portion of which is provided with at least one orifice therein and is capable of springing back to its original shape upon release of the pressure to free said at least one orifice of cream or viscous fluid.
- The invention will now be described with reference to the drawings, in which:
- Fig. 1 is a view in vertical section of an applicator according to the invention, the right hand side showing a piston in starting position and the left hand side showing the piston fully advanced.
- Fig. 2 is a detailed view in vertical section of the applicator member according to the invention, in its original shape.
- Fig. 3 is a view in vertical section of the applicator member of Fig. 2 depressed by external pressure.
- Referring to the drawings, an applicator according to the invention comprises a container 10 which is normally, but not necessarily, a cylindrical tube. The lower end of the container is closed by a
plug 12 having a lug 13 which engages an inwardly turned flange 11 at the bottom of the container. Theplug 12 may be provided with acollar 14, which may be knurled, if desired, and by means of which theplug 12 may be rotated within the container 10. - The outer surface of the
plug 12 is threaded as at 15 and ahollow piston 16 is interposed between theplug 12 and the container 10. Its inner wall is threaded as at 17, these threads engaging thethreads 15 of theplug 12. - At the right hand side of Fig. 1 the
piston 16 is shown fully retracted and seated at the bottom of container 10, leaving aspace 33 of variable volume above it, which space may be filled with the liquid or cream to be dispensed. - The inner wall of container 10 is provided with vertical guide means in the form of
ribs 18 which engagevertical slots 19 in the wall ofpiston 16 and prevent the piston from rotating. Thus whenplug 12 is rotated by means ofcollar 14 thepiston 16 is moved upwardly, from the position shown on the right side of Fig. 1, ultimately reaching the position shown at the left hand side of Fig. 1. - At the top of the
piston 16 is provided anannular collar 20 which fits closely against the inner surface of the container and slides on that surface as the piston moves upwardly, thus providing a seal for the liquid material inspace 33. - The top of container 10 is split to provide an outer rim 21 which branches from a
central wall 22 of the container. The outer rim 21 has anannular channel 23. - The upper end of container 10 is closed by an applicator member in the form of a
cap 24 which is held in place by the engagement of aninner ring 25 in theannular channel 23 of the container rim 21. Avertical ring 26 extending down from the under surface ofcap 24 engages the outer surface of thecentral wall 22 of the container. - As shown more particularly in Fig. 2, the
cap 24 has anouter section 27, which is relatively thick and an inner section 28 which is thin. At the center of the inner section there is provided anorifice 29. Thecap 24 is made of a material which is strong and resilient so that if the inner section 28 is pressed it will bend inwardly toward the container 10, but when released will spring back to its original shape. For many purposes it will be desirable to have thecap 24 soft to the touch. Polypropylene and polyethylene will provide these properties. - Over the
cap 24 there may be placed acover 30.Cover 30 has an inner ring 31 which bears oncap 24.Cover 30 is sized to make a friction fit with the side of thecap 24 and the container 10, as at 32. - In operation, the
cover 30 is removed and thecollar 14 is rotated to move thepiston 16 upwardly, forcing the cream or liquid material in thespace 33 into the upper domelike part ofcap 24, out theorifice 29 and onto the outer surface of the cap. The user then applies the liquid material to the surface to be coated. In doing so be presses the domed surface of thecap 24 against the surface to be coated, causing at least the inner section 28 of thecap 24 to be deformed inwardly as shown in Fig. 3. In this process, additional liquid material is squeezed from the top of the container throughorifice 29. - When the application has been completed, the applicator is removed from the coated surface, relieving the pressure on the
cap 24. The thin, resilient inner section 28 then springs back to its original shape, leaving anair space 34 at the top of the cap and freeing the orifice of liquid material. The presence of thisair space 34 acts as a reservoir to receive liquid material caused to expand from thespace 33 by changes in temperature or pressure and avoiding undesired extrusion of such material throughorifice 29. - The materials used to make the applicator can be varied widely. For various reasons including texture, economy and chemical inertness polypropylene is preferred, though for some parts, for example, the
cover 30, low density polyethylene is the substance of choice. Obviously more expensive materials such as nylon, polymethylmethacrylate, or other plastics, or various rubbers, may be employed, as may metals such as stainless steel. - Many variations are possible in the structure of the applicator. For example, a central threaded rod may be used to advance a piston to extrude the stored material in a fashion analogous to that shown in United States Patents Nos. 2,935,191 and 2,818,167. Alternatively, the container may be a simple squeeze bottle. Finally, although only a single orifice has been described it is obvious that multiple orifices may be used as may slots or openings of other shapes.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US40088582A | 1982-07-22 | 1982-07-22 | |
US400885 | 1982-07-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0100204A1 EP0100204A1 (en) | 1984-02-08 |
EP0100204B1 true EP0100204B1 (en) | 1990-03-21 |
Family
ID=23585403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19830304223 Expired - Lifetime EP0100204B1 (en) | 1982-07-22 | 1983-07-21 | Applicator for creams and viscous liquids |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0100204B1 (en) |
CA (1) | CA1226555A (en) |
DE (1) | DE3381343D1 (en) |
MX (1) | MX157234A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3416999A1 (en) * | 1984-05-09 | 1985-11-14 | Bramlage Gmbh, 2842 Lohne | MEASURE DONOR FOR PASTOESE |
FR2602128B1 (en) * | 1986-08-04 | 1988-10-07 | Emballages Conseils Etudes | JAR FOR DERMAL CREAM AND THE LIKE |
GB8718125D0 (en) * | 1987-07-30 | 1987-09-03 | Mansfield D E | Combined housing & applicator for cosmetic material |
MX170831B (en) * | 1988-02-08 | 1993-09-20 | Mennen Co | BAR CONTAINER WITH APPLICATION SURFACE |
US5540361A (en) * | 1994-10-27 | 1996-07-30 | The Mennen Company | Cream dedorant dispenser |
US6196747B1 (en) * | 1995-12-21 | 2001-03-06 | Creative Packaging Corp. | Product dispensing cover |
US6116803A (en) * | 1996-04-10 | 2000-09-12 | The Plastek Group | Dispenser |
US5833382A (en) * | 1996-08-19 | 1998-11-10 | Helene Curtis, Inc. | Push-up dispenser suitable for dilatant materials |
US6572300B2 (en) | 2000-04-24 | 2003-06-03 | The Procter & Gamble Company | Soft applicator dome |
BR0002340A (en) * | 2000-06-08 | 2002-02-05 | Johnson & Johnson Ind Com | Dispenser for personal use products on the body |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807881A (en) * | 1972-08-03 | 1974-04-30 | Menley & James Labor Ltd | Cosmetic applicator |
DE3009587C2 (en) * | 1980-03-13 | 1985-05-02 | Eau de Cologne- & Parfümerie-Fabrik Glockengasse No. 4711 gegenüber der Pferdepost von Ferd. Mülhens, 5000 Köln | Body care device for applying liquid foamable body care products, in particular shower gels |
-
1983
- 1983-07-21 CA CA000432952A patent/CA1226555A/en not_active Expired
- 1983-07-21 DE DE8383304223T patent/DE3381343D1/en not_active Expired - Lifetime
- 1983-07-21 EP EP19830304223 patent/EP0100204B1/en not_active Expired - Lifetime
- 1983-07-21 MX MX19811183A patent/MX157234A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0100204A1 (en) | 1984-02-08 |
MX157234A (en) | 1988-11-07 |
CA1226555A (en) | 1987-09-08 |
DE3381343D1 (en) | 1990-04-26 |
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