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Publication numberUS3881529 A
Publication typeGrant
Publication dateMay 6, 1975
Filing dateNov 28, 1973
Priority dateDec 6, 1972
Also published asCA1006850A1, DE2359981A1, DE2359981C2
Publication numberUS 3881529 A, US 3881529A, US-A-3881529, US3881529 A, US3881529A
InventorsMannara Giuseppe
Original AssigneeColgate Palmolive Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Striped toothpaste fill nozzle
US 3881529 A
Abstract
A nozzle for filling containers with fluent materials, including concentric tubes forming an annular space there between, a plurality of orifices providing communication between the inner and outer tubes and a dispensing opening for dispensing fluent materials.
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Description  (OCR text may contain errors)

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2,914,220 11/1959 Marraffino.......................,222/94X 2935,23] 2,959,327

[ 1 STRIPED TOOTHPASTE FILL NOZZLE 5/1960 Paull et 222/94 222/94 Inventor: Giuseppe Mannara, Rome, Italy 44 ww 22 224 223 .l ""9 ""3 "n m mm ".1 W Wm r: F M SRA 60 667 990 111 I, 0 9 890 5 5 27 W23 333 w e N 9 y n a D. m 0 C e V H 0 m. .N a Ma 00 CY E 8 n g .1 s S A .1 3 7 [22] Filed: Nov. 28, 1973 [21] Appl. No.: 419,624 FOREIGN PATENTS OR APPLICATIONS 962,757 7/1964 United Kingdom..... 466,931 8/1950 Canada...................

[30] Foreign Application Priority Data Dec. 6, 1972 209,920 1/1924 United Kingdom..... United Kingdom...................

. C m e w ntw s mm T mK c A n A R e m w w m m m 4 m m m P: E .M Way a m m m m w H fimM U 10 5 733 3 10 2 0 72 62 23 2 0 4 0.9011 1 .2 Umw 3 4 C ,1 i .7 11 m m 7 M W m m 0 m M mmhfi 00. a r 9 mnw 1 2. C 1 4 Sm m UIF N 555 [11 A nozzle for filling containers with fluent materials, including concentric tubes forming an annular space [56] References Cited UNITED STATES PATENTS there between, a plurality of orifices providing communication between the inner and outer tubes and a dispensing opening for dispensing fluent materials.

6 Claims, 3 Drawing Figures NRX 4 1 W52 4m W max .1 a k r P o C HSM 897 2 5 999 111 //l 7 4 41.1 363 new 22 A p u n a a r FAYENTEEMAY ems I u I ll llllllllllllll.

2 lv M. 38 2 n STRIPED TOOTHPASTE FILL NOZZLE This invention relates to the filling of containers such as collapsible tubes with two different fluent materials in such relation that when the container is actuated for dispensing the contents will emerge with the different compositions in predetermined relative location. as for example to present a markedly distinct striped effect.

It has been proposed, see British Patent No. 962.757. to provide a device for filling toothpaste tubes, wherein different colored pastes are separately fed through concentric nozzle tubes at the discharge ends of which the outer paste is separated into smaller streams that longitudinally and peripherally join the discharged column of inner paste to provide a longitudinally striped product in the container.

The present invention is directed to a novel nozzle construction whereby different fluent materials are more effectively introduced into coacting relation by combining them within the nozzle assembly in such manner that an improved composite product is available. and such is a major advantage of the invention.

The term fluent material as used herein includes creams. pastes, gels and like fluent materials.

A further advantage of the invention is to provide a novel nozzle assembly for filling toothpaste and like tubes or containers for producing a longitudinally arrayed composite product wherein concentric columns of different fluent materials are fed separately and coaxially toward a discharge outlet and wherein peripherally spaced streams of the longitudinally moving outer material are forced substantially radially inwardly and peripherally into the longitudinally moving inner column in controlled relation within the nozzle assembly so that the different fluent materials are united in a single effective composite column prior to discharge through the outlet.

It is a further advantage of the invention to provide a novel nozzle assembly structure wherein a hollow central tube receiving a first fluent material is surrounded by a concentric annular passage receiving a second fluent material and the wall of the central tube is slotted at circumferentially spaced intervals to continuously admit streams from the outer tube to penetrate into the inner column and form longitudinal distinct regions such as stripes therealong.

FIG. 1 is a side elevation. partly broken away and in section, showing a filling nozzle arrangement according to a preferred embodiment of the invention;

FIG. 2 is a section substantially on line 2-2 of FIG. 1 showing internal structure; and

FIG. 3 is an essentially illustrative view showing a cross section of the product as it appears within the container.

A filling nozzle assembly 11 consists essentially of an outer tubular member [2 and a relatively fixed removable inner tubular member 13.

Outer tubular member I2 comprises a hollow cylindrical body I4 having an inturned conical open lower end I5 and an open upper end that is internally threaded at [6. Below the threaded upper end. tubular member 12 is laterally open to a connecting intake supply conduit l7 for introducing a fluent material such as a toothpaste or the like as will appear.

Inner tubular member I3 comprises a hollow cylindrical body 18 having at its'lower end an enlarged diameter short cylindrical guide section 19 that has a snug sliding fit within the cylindrical bore 21 of body 14. At its upper end body I8 is formed with an enlarged diameter section 22 that is externally threaded at 23 to mate with the threads 16 of the outer member. Beyond threaded section 22, body 18 is further enlarged at 24 and provided with an annular radial surface 25 that faces downwardly. The enlarged section 24 is adapted for connection to a supply conduit indicated diagrammatically at 26 for introducing fluent material such as a toothpaste.

At its lower end, the inner member 13 below guide section I9 is formed with a reduced external diameter portion 27 defining a downwardly facing annular shoulder 28. The lower end of member 13 is externally conical at 29 where it projects through the open lower end of outer member 12. Inner member 13 has a constant diameter internal cylindrical bore 3].

The cylindrical walls of body 14 and body [8 are radially separated so as to provide an annular space 32 disposed between the threaded connection at 16, 23 and the enlarged inner section 19. Conduit 17 opens into space 32. Below the junction of conduit 17 with space 32, inner body 18 is formed with a plurality of laterally open orifices in the form of uniformly circumferentially spaced slots 33 that provide communication between space 32 and the interior of inner member l3.

The parts are so constructed and arranged that when the inner and outer members I2 and I3 are joined by the threaded connection at I6, 23 a resilient O-ring 34 will be compressed sealably between surface 25 and the upper end of outer member 12, and a resilient O-ring 35 will be compressed sealably between shoulder 28 and the inner surface of the conical lower end of the outer member [2. This axially seals space 32 at opposite ends, so that the space is closed except for the inlet thereto at 17 and the discharge orifices 33.

In operation, two separate fluent materials typically having contrasting colors may be introduced at the same time into bore 31 and space 32 respectively. This provides a core column of one fluent material in bore 31, and an annular column of a second fluent material in space 32. Preferably these fluent materials are forced into the nozzle assembly under pump pressure; the nozzle assembly having been introduced into the interior of an open tube indicated at T in FIG. 1. The core column of fluent material flowing down the interior of member 13 is peripherally joined at the level of orifices 33 with streams of the second fluent material entering through orifices 33 from the surrounding column in space 32.

FIG. 3 illustrates a distribution of the two fluent materials within the tube T as filled. It will be understood that in accord with known practice the nozzle assembly is initially fully introduced in a conventional manner (not shown) within tube T so that at the beginning it discharges paste at the closed capped end of the tube. and as filling progresses the nozzle assembly is gradually moved upward out of the tube in a controlled manner (not shown). The conical end at 29 facilitates entry of the nozzle assembly into the tube to be filled. and the diameter of body 14 is usually a few centimeters less than the inner diameter of the tube to permit free entry while permitting discharge of an adequate column of paste into the tube T. Where a striped toothpaste is desired. pastes of different color are continuously introduced into inner member I3 and space 32 respectively. and the pattern of combination within the nozzle as- 3 sembly and eventually within the tube is for example like that illustrated in FIG. 3.

Within the nozzle assembly outer circumferentially spaced streams of paste from the annular column enter the inner tubular member through orifices 33 and penetrate deeply radially into the core column stream within bore 31, and conditions may be varied to control such penetration. For example. the pressure in space 32 may be increased for deeper penetration. Should paste of one color. such as white. enter member 13. paste of another color. such as blue. may enter space 32, and the discharged column emerging at 29 of the nozzle assembly will have a central core of white paste and four distinct peripherally spaced longitudinal blue regions. The relative locations of the core and outer regions are substantially maintained when the composite paste enters the tube and when the tube contents are discharged by the consumer.

A feature of the invention is that the discharging composite column leaving the nozzle assembly is of the same diameter as bore 31 whereby the container filling action may be closely controlled with the result that the product ultimately extruded from the tube T is more uniformly and distinctly striped.

The invention also contemplates variations in the number. size. shape and disposition of orifices 33 for attaining different composite effects and composition.

A practical advantage of the disclosed structure is that the inner tube 13 may be periodically removed for cleansing the assembly. Another is that different inner tubes 13 having different orifice arrangements and sizes may be substituted into the outer tube assembly for different composite products while maintaining the same outer tube in the filling machine.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive. the scope of the invention being indicated by the appended claims rather than by the foregoing description. and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What is claimed and desired to be secured by Letters Patent is:

l. A nozzle assembly for filling containers with fluent materials arranged in desired composite relation comprising longitudinally coextensive inner and outer tubular members removably secured together to form an annular space therebetween, said tubular members being threadedly connected at one end. means for introducing a first fluent material into one end of the inner tubular member, means forming a discharge opening at the other end of said inner tubular member. said inner tubular member having an enlarged portion adjacent its other end slidably fitting within the outer tube. means for introducing a second fluent material into said space, means providing a plurality of spaced orifices in said inner tubular member providing communication between said space and the interior of said inner tubular member, and resiliant sealing means between the tubes at opposite ends for preventing fluent material from leaving said annular space except through said orifices.

2. A nozzle assembly for filling containers with fluent materials arranged in desired composite relation comprising inner and outer tubular members secured together to form an annular space therebetween. means for introducing a first fluent material into one end of the inner tubular member. means forming a discharge opening at the other end of said inner tubular member, means for introducing a second fluent material into said annular space, means providing at least one orifice in said inner tubular member. said orifice providing communication between said annular space and the interior of said inner tubular member. and sealing means at opposite ends of said tubes for preventing fluent material from leaving said annular space except through said orifice, said sealing means including an enlarged portion of said inner tubular member adjacent said other end and said orifice. said enlarged portion terminating said annular space.

3. The nozzle assembly of claim 2 including a plurality of spaced orifices in said inner tubular member.

4. The nozzle assembly of claim 3 wherein said plurality of orifices are evenly spaced.

5. The nozzle assembly defined in claim 2, wherein said tubular members are longitudinally coextensive tubes.

6. The nozzle assembly defined in claim 5, wherein said hollow tubes are threadedly connected at one end. i =8

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1676734 *Dec 16, 1922Jul 10, 1928Gilmont Products CorpApparatus and method for filling collapsible tubes
US2143661 *Feb 23, 1938Jan 10, 1939Schrader Arthur WDispensing head for collapsible tubes
US2789731 *Jun 6, 1955Apr 23, 1957Marraffino Leonard LStriping dispenser
US2914220 *Apr 19, 1957Nov 24, 1959John J SperoStriping dispenser
US2935231 *Feb 17, 1958May 3, 1960Wheeling Stamping CoCollapsible tube and insert therefor
US2959327 *Apr 19, 1957Nov 8, 1960Lever Brothers LtdStriping dispenser
US3002658 *Jul 6, 1959Oct 3, 1961Sajda Sigmund TNozzle for applying colors
US3227319 *Mar 16, 1964Jan 4, 1966Jean-Jacques RosierFlexible tube
US3531050 *Feb 12, 1968Sep 29, 1970Atomic Energy Of Canada LtdTwo-phase homogenizer
US3559700 *Jan 21, 1969Feb 2, 1971Big Drum IncMethod and apparatus for filling containers with multiple separate streams of viscous material
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3952782 *Mar 5, 1975Apr 27, 1976Colgate-Palmolive CompanyApparatus for filling containers with composite fluent material
US4444746 *Nov 24, 1982Apr 24, 1984Colgate-Palmolive CompanyVisually clear lake colored dentifrice
US4456585 *May 16, 1983Jun 26, 1984Colgate-Palmolive CompanyVisually clear pigment-colored dentifrice composition
US4487757 *Nov 22, 1982Dec 11, 1984Colgate-Palmolive CompanyDispensing container of toothpaste which effervesces during toothbrushing
US4506710 *May 23, 1983Mar 26, 1985Sawvel Thomas DRevel-ice cream container filling device
US4518578 *Jun 14, 1984May 21, 1985Colgate-Palmolive CompanyDentifrice composition containing visually clear pigment-colored stripe
US4528180 *Mar 1, 1983Jul 9, 1985Schaeffer Hans ADental preparation, article and method for storage and delivery thereof
US4544006 *Sep 1, 1983Oct 1, 1985Colgate-Palmolive CompanyApparatus for filling dispensing containers with a liquid or pasty product
US4849213 *Jun 19, 1987Jul 18, 1989Schaeffer Hans ADental preparation, article and method for storage and delivery therof
US4928592 *May 15, 1989May 29, 1990Continental Baking CompanyDual injection cake filler apparatus
US5307954 *Nov 19, 1991May 3, 1994Duncan EnterprisesMulti-color fabric paint product
US5324505 *Dec 4, 1989Jun 28, 1994Henkel Kommanditgeselschaft Auf AktienStriped, multicolored toothpaste and dispenser therefor
US5775386 *Jun 13, 1996Jul 7, 1998Colgate-Palmolive CompanyApparatus and process for filling plural chamber container with flowable materials
US5782384 *Nov 5, 1996Jul 21, 1998Colgate-PalmoliveAligned web in a container
US5849241 *Dec 20, 1996Dec 15, 1998Colgate-Palmolive CompanyMultichamber container with expanded interior walls
US5941420 *Aug 6, 1997Aug 24, 1999Colgate-Palmolive CompanyMultichamber container dispensing orifices
US6123925 *Jul 27, 1998Sep 26, 2000Healthshield Technologies L.L.C.Antibiotic toothpaste
US6230935Jul 22, 1996May 15, 2001Colgate-Palmolive CompanyDual chamber pump dispenser
US6546970 *Nov 7, 2001Apr 15, 2003Ocme S.R.LNozzle for filling operations with two liquid and/or gas products for filler machines
US6648026 *May 31, 2001Nov 18, 2003WyethMulti-composition stick product and a process and system for manufacturing the same
US6959739Nov 19, 2002Nov 1, 2005Norden Pac Development AbTube-filling machine and a filling method in such a machine
US7699246 *Nov 22, 2005Apr 20, 2010Eugen MalamutmannSupply system
US8096331 *Sep 15, 2006Jan 17, 2012Weightpack S.R.L.Machine for filling containers
US8539992 *Apr 27, 2011Sep 24, 2013Dsi Underground Systems, Inc.Apparatus and method for anchor bolt grouting
US20120275867 *Apr 27, 2011Nov 1, 2012Dsi Underground Systems, Inc.Apparatus and method for anchor bolt grouting
WO2003062059A1 *Nov 19, 2002Jul 31, 2003Norden Pac Dev AbTube-filling machine and a filling method in such a machine
WO2006091159A1 *Feb 23, 2006Aug 31, 2006Norden Pac Dev AbFilling nozzle
Classifications
U.S. Classification141/100, 239/431
International ClassificationB65B3/04, B65B3/16, A23G9/24, B65B3/06, B65B39/00, A23G9/04
Cooperative ClassificationB65B2039/009, B65B39/00
European ClassificationB65B39/00