Definitions

• This invention relates to a new and improved one-piece fitment having a reclosure cap.
• the fitment may be attached to a container surrounding a hole therein and is characterized in that it has an outward-slanted tear band positioned above the fitment spout and beneath a reclosure cap. Before its removal, the reclosure cap functions as a tamper-evident closure for the spout. When the tear band is pulled off, the fitment may be opened and the upper portion thereof used as a reclosure cap.
• Fitments attached to the paperboard panels of cartons for juice and milk are becoming increasingly important.
• Such fitments conventionally have a spout attached to the paperboard carton by a peripheral flange and further have a cap which is attached to the spout and further have tamper-evidencing means.
• a one-piece intermediate product cap of this type is shown in U.S. Patent Nos. 5,249,695 (FIGS. 10-20), 5,348,183, 5,174,465 and 5,271,519.
• the cap is snapped onto the spout for reclosure purposes after the tear band has been removed.
• the cap is screwed onto the spout. Snap-on and screw-on caps have -2- been used in the container art for many years but never as parts of one-piece fitments wherein there is a removable interconnecting tear band.
• U.S. Patent 5,249,695 shows as an intermediate product or a consumer product comprising a spout having internal threads joined at its upper edge to the lower edge ofa cap having external threads.
• the cap may be disconnected from the spout and used as a reclosure cap.
• the external threads of the cap are exposed to dirt and other contaminants when the fitment is in its initial condition and thus may later contaminate the contents of the container.
• the present invention comprises a one-piece fitment which is inexpensive to manufacture in that it is unnecessary for the cap to be assembled on the spout prior to attachment of the fitment to a container.
• the fitment is tamper-evidencing in that it has a tear band which, when torn off, provides a separate spout and a separate cap.
• the cap skirt When used as a reclosure cap, the cap skirt is applied over the outside of the spout and an internal hollow plug or depression depending from the cap top engages the inside of the upper edge of the spout to seal the spout closed. In initial condition both these surfaces are enclosed. Hence contamination of the primary seal surfaces is prevented.
• the reclosure cap may be used repeatedly.
• Another feature of the invention is the "hour glass" shape of the interior of the fitment. This shape facilitates stripping the fitment out of the mold in which it is formed.
• FIG. 1 is a side elevational view of one modification of a fitment in accordance with the present invention shown installed on a panel of a paperboard container. -3-
• FIG. 2 is a top plan view of the fitment of FIG. 1.
• FIG. 3 is a vertical sectional view through the structure of FIG. 1.
• FIG. 4 is an enlarged fragmentary sectional view taken substantially along the line 4-4 of FIG. 1.
• FIG. 5 is an enlarged sectional view of a portion of the structure of FIG. 3.
• FIG. 6 is a vertical sectional view showing the fitment with the tear band removed and the reclosure cap applied onto the spout.
• FIG. 7 is a view similar to FIG. 1 of a modification.
• FIG. 8 is a view similar to FIG. 3 of the modification of FIG. 7.
• FIG. 9 is an enlarged fragmentary view of a portion of the structure of FIG.8.
• the fitment 14 of the present invention is usable with containers of many different kinds.
• the fitment is shown used with a papeiboard carton for juices, milk and the like, conventionally being attached to one of the panels of a tent-type top container widely used in such cartons. It will be understood that the invention may be used with many other containers.
• carton panel 11 is formed with a circular hole 12.
• Fitment 14 is inserted in the interior of the carton and projects outward through the hole 12. It will be understood that it could also be applied to the exterior.
• Peripheral flange 16 of the fitment fits against the underside of panel 11 surrounding the hole 12 and may be attached thereto by ultrasonic welding, adhesives or other convenient means.
• Spout 17 extends upward relative to flange 16 and has a substantially cylindrical lower portion 18, an inwardly upwardly conical intermediate portion 19 and a cylindrical upper -4- portion 21.
• On the exterior of cylindrical portion 21 is an external bead 22 having a shoulder 23 at its lower edge.
• tear band 26 which slants upwardly outwardly relative to cylindrical portion 21 and is defined by horizontal lower tear line 27 and upper tear line 28. As best shown in FIG. 4, a vertical thin portion 29 is located at one position of band 26. Spaced outwardly of spout 17 is substantially vertical tear tab 31 connected to band 26 by a horizontal connector 32 of limited arcuate width. A lateral extension 33 of tab 31 may conveniently be gripped by the consumer in order initially to open the fitment, as hereinafter explained. Above tear band 26 and separated therefrom by tear line 28 is cap 36 which has a top 37 closing off the upper end of the fitment. Depending from top 37 is a circumferential skirt 38 formed spaced upward from its lower edge with internal interrupted bead segments 39. Also depending from top 37 is a hollow plug 41 having a curved lower outer edge 42. It will be noted that the dimensions of top 37 are greater than the circumference of skirt 38 so that there is a peripheral flange 44 projecting outwardly.
• fitment 14 before filling the carton, fitment 14 is deposited inside panel 11 and then moved outwardly through hole 12 which is of a diameter such that the flange 44 maybe projected outwardly therethrough.
• Flange 16 contacts the inside of the panel 11 and is secured thereto by ultrasonic welding, by adhesives or other means as well understood in the fitment equipment art. So long as the fitment 14 is intact, it is tamper-evidencing and all internal surfaces are sealed from contamination.
• the consumer grips the tab 31 and pulls circumferentially around the fitment.
• the vertical thin portion 29 fractures as do the tear lines 27 and 28 so that the tear band 26 may be completely removed from spout 14 and also completely removed from cap 36.
• the extension 33 may be gripped conveniently at any position of fitment 14 relative to the carton on which it is mounted, even when in close proximity to the crimped ridge of a tent-top container. Hence it is not necessary to orient the fitment when applying it to a container. -5-
• cap 36 may be used for reclosure purposes.
• the diameter of the interior of skirt 38 is approximately equal to the exterior diameter of cylindrical portion 21. Hence when the cap is pushed downward, the interrupted internal beads 39 of the cap skirt 38 snapping under the shoulder 23 of the external bead 22 of spout 17. At the same time, the hollow plug 41 enters the upper end of spout 17 and seals thereagainst. Curved edge 42 facilitates this operation.
• FIG 6 A feature of the invention is shown in FIG 6 where it is shown that the contents of the container are sealed by plug 41 sealing against the inside of cylindrical portion 21. Both the seal surfaces are on the inside of the structure of FIG. 3 and hence are not exposed to dirt or other contaminates prior to initial opening.
• the cap 36 may be used for reclosure purposes as often as required.
• FIGS.7-9 illustrate a modification of the invention and several additional features which may be incorporated either in the modification of FIGS. 1-6 or the modification of FIG.S 7-9.
• flange 16a is formed with an upper step 51 having a diameter slightly less than hole 12 and having a height approximately equal to the thickness of panel 11. This structure facilitates centering the fitment 14a (or the fitment 14) in the hole 12 during application.
• the interior of spout 17a may be formed with an inward protruding bead 53 here shown as continuous, but may be interrupted.
• Bead 53 functions when the fitment 14a is attached to a spud on an anvil which transports the fitment from the terminal of a chute leading down from a hopper to a position inside the open upper end of a carton arid subsequently moves the fitment so that the spout projects out through the hole 12.
• the fiictional engagement of bead 53 with a spud on the anvil eliminates the necessity of using vacuum and otherwise facilitates application of the fitment.
• Still another feature of the invention is the provision of a connector 34 shown in FIG. 8 between the inside of tab 31a and the exterior of the spout 17a. This prevents -6- the tab from being displaced from its initial position and unintentionally tearing of the tear strip 26a.
• bridges 61 span upper tear lines 28a and bridges 62 span lower tear line 27a. Bridges 61 and 62 prevent unintentional severing of the tear lines but are not of sufficient width or strength to prevent the user from tearing through them when the tab 31a is gripped and the band 26a is torn off.
• FIGS. 7-9 The modifications discussed in the preceding four paragraphs may be used with the modification of FIGS. 1-6 as well as with the modification of FIGS. 7-9.
• One distinguishing feature of the modification of FIGS. 7-9 is the formation of screw threads 56 on the exterior of the upper portion of spout 17a and the formation of internal threads 57 on the interior of skirt 38a.
• the cap threads 57 may be used to screw the cap onto the spout.
• flange 44 In a screw cap, use of flange 44 may be eliminated.
• vertical external ribs 64 may be formed on skirt 38a.
• FIGS. 7-9 resembles that of FIGS. 1-6 and the same reference numerals followed by subscript a, are used to designate corresponding parts.

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• Closures For Containers (AREA)
• Cartons (AREA)

Applications Claiming Priority (1)

Publications (3)

Family

ID=22266251

Family Applications (1)

Country Status (5)

Citations (2)

• 1998
  • 1998-01-22 DE DE69832907T patent/DE69832907T2/de not_active Expired - Lifetime
  • 1998-01-22 AT AT98902690T patent/ATE313490T1/de not_active IP Right Cessation
  • 1998-01-22 EP EP98902690A patent/EP1058652B1/de not_active Expired - Lifetime
  • 1998-01-22 CA CA002318647A patent/CA2318647C/en not_active Expired - Fee Related
  • 1998-01-22 AU AU59286/98A patent/AU5928698A/en not_active Abandoned

Patent Citations (2)

Non-Patent Citations (1)

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