EP2091835A1 - Dual-action child-resistant package and child-resistant closure for such a package - Google Patents

Dual-action child-resistant package and child-resistant closure for such a package

Info

Publication number
EP2091835A1
EP2091835A1 EP07810577A EP07810577A EP2091835A1 EP 2091835 A1 EP2091835 A1 EP 2091835A1 EP 07810577 A EP07810577 A EP 07810577A EP 07810577 A EP07810577 A EP 07810577A EP 2091835 A1 EP2091835 A1 EP 2091835A1
Authority
EP
European Patent Office
Prior art keywords
skirt
closure
neck finish
internal
lug
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.)
Granted
Application number
EP07810577A
Other languages
German (de)
French (fr)
Other versions
EP2091835B1 (en
Inventor
Donald P. Delagrange
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.)
BPrex Healthcare Packaging Inc
Original Assignee
BPrex Healthcare Packaging 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
Application filed by BPrex Healthcare Packaging Inc filed Critical BPrex Healthcare Packaging Inc
Publication of EP2091835A1 publication Critical patent/EP2091835A1/en
Application granted granted Critical
Publication of EP2091835B1 publication Critical patent/EP2091835B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/04—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one
    • B65D50/045—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring
    • B65D50/046—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring and such deformation causes the disengagement of locking means, e.g. the release of a pawl-like element from a tooth or abutment, to allow removal of the closure by simultaneous rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/09—Reversible caps or lids, e.g. with threads on one side and a plug on the other

Definitions

  • the present disclosure relates to child-resistant packages, and more particularly to a package that is adapted to be opened in either of (at least) two child-resistant modes of operation.
  • a general object of the present disclosure is to provide a child-resistant package, and to provide a closure and a container for such a package, in which the package can be opened to dispense product in either of (at least) two child-resistant modes of operation.
  • a dual-action child-resistant package in accordance with one aspect of the present disclosure, includes a container having a neck finish with an open mouth, at least one external thread segment, and at least one external lug spaced from the thread segment and having an angled cam surface facing axially toward the open mouth.
  • a closure has a peripheral skirt, at least one internal thread segment for engagement with the at least one external thread segment on the container neck finish, an internal angled cam surface on the skirt, at least one internal lug on the skirt for engagement with the at least one external lug on the neck finish, and a flexible resilient spring for engaging the neck finish and biasing the closure away from the neck finish.
  • the closure is threaded onto the neck finish until the internal lug on the skirt moves over the external lug on the neck finish to resist unthreading of the closure from the neck finish.
  • the closure is removable from the neck finish by: ( 1 ) squeezing the skirt to ovalize the skirt such that the at least one internal lug on the skirt moves radially outwardly from the at least one external lug on the neck finish whereupon the closure can be unthreaded from the neck finish, and (2) pushing the closure over the neck finish against the spring until the cam surface on the at least one external lug engages the internal angled cam surface on the skirt to ovalize the skirt until the at least one internal lug on the skirt moves radially outwardly from the at least one external lug on the neck finish whereupon the closure can be unthreaded from the neck finish.
  • the peripheral skirt of the closure preferably includes a first portion on which the at least one internal thread segment is disposed, and a second portion extending from the first portion on which the internal cam surface and the at least one internal
  • a dual-action child-resistant package in accordance with another aspect of the present disclosure, includes a container having a mouth, at least one external thread segment and a pair of diametrically opposed external lugs on a side of the thread segment remote from the mouth.
  • a plastic closure includes a base with a dispensing opening, at least one internal thread segment for engagement with the external thread segment on the neck finish, and a flexible resilient skirt with a pair of diametrically opposed internal lugs for engagement with the external lugs to prevent unthreading of the closure from the neck finish.
  • the skirt is squeezable to ovalize the skirt and move the internal lugs out of engagement with the external lugs, and thereby permit unthreading of the closure from the neck finish.
  • a lid is coupled to the base by a hinge for movement between a closed position overlying the dispensing opening and an open position spaced from the dispensing opening.
  • a child-resistant latch extends between the Hd and the base to permit opening of the lid with respect to the base.
  • FIG. l is a perspective view of a closure and container package in accordance with an exemplary embodiment of the present disclosure
  • FIG. 2 is a fragmentary sectional view of a portion of the package illustrated in FIG. 1;
  • FIG. 3 is a sectional view taken substantially along the line 3-3 in FIG. 2;
  • FIG.4 is a fragmentary sectional view on an enlarged scale of the portion of FIG.
  • FIG. 5 is a fragmentary sectional view similar to that of FIG. 4 showing a first child-resistant mode of operation of the package;
  • FIG. 6 is a fragmentary sectional view similar to that of FIG. 2 showing a second child-resistant mode of opening the package;
  • FIG. 7 is a fragmentary sectional view on an enlarged scale of the portion of FIG. 6 within the area 7;
  • FIG. 8 is a fragmentary elevational view of the package in FIG. 1 in a non-child- resistant mode of operation;
  • FIG. 9 is a fragmentary elevational view that illustrates the neck finish of the container in the package of FIGS. 1-8;
  • FIG. 10 is a fragmentary perspective view of the container neck finish in FIG. 9;
  • FIG. 11 is a sectional view of the closure in the package of FIGS. 2-7;
  • FIG. 12 is a fragmentary perspective view of a child-resistant package in accordance with a second exemplary embodiment of the present disclosure;
  • FIG. 13 is a sectional view taken substantially along the line 13-13 in FIG. 12; and FIG. 14 is a fragmentary sectional view taken substantially along the line 14-14 in.FIG. 13.
  • FIGS . 1-11 illustrate a dual-action child-res istant package 20 in accordance with a first exemplary embodiment of the present disclosure.
  • Package 20 includes a child-resistant closure 22 threaded onto the neck finish 24 of a container 26.
  • Container neck finish 24 includes at least one external thread segment 28 for securement of closure 22 in a child-resistant mode of operation.
  • Thread segment is employed in its usual broad sense to include both single and multiple threads, and both interrupted and continuous threads.
  • Neck finish 24 also includes at least one external lug 30, preferably diametrically opposed external lugs 30 as best seen in FIGS. 3 and 9.
  • Each external lug 30 has an angled cam surface 32 that faces axially toward or in the direction of the open end or mouth of neck finish 24.
  • Cam surfaces 32 preferably are flat, although conical, convex or concave cam surfaces could be employed.
  • Closure 22 includes a base wall 34 having a peripheral flexible resilient annular skirt 36.
  • Skirt 36 includes at least one internal thread segment 38 for engagement with external thread segment 28 on neck Finish 24 to secure closure 22 to neck finish 24 in a dual-action child-resistant mode of operation.
  • Internal thread segment 38 is disposed on a first portion of skirt 36 adjacent to base wall 34.
  • a second portion of skirt 36 extending remotely of base wall 34 includes an angled internal cam surface 40.
  • Cam surface 40 preferably is conical, and most preferably extends entirely around skirt 36 except where interrupted by internal lugs as will be described.
  • Internal surface 40 preferably is formed on a portion 42 of skirt 36 that flares radially outwardly at the open edge of the skirt and terminates in a cylindrically extending portion 44.
  • At least one internal first lug is disposed on the lower portion of skirt 36, preferably a pair of diametrically opposed internal first lugs 46 as best seen in FIG. 3.
  • Each internal first lug 46 preferable has an angled cam surface 48, by means of which lugs 46 ride over lugs 30, ovalizing flexible resilient skirt 36 until internal first lugs 46 snap behind external lugs 30.
  • Each internal first lug 46 preferably has an associated adjacent internal second lug 50 spaced from lug 46 so that external lugs 30 can be received between lugs 46,50. Lugs 50 prevent additional or over-threading of the closure onto the neck finish.
  • a flexible resilient spring 52 is carried by closure 22 for engaging neck finish 24 and biasing closure 22 away from the neck finish. In the illustrated embodiment of FIGS.
  • spring 52 comprises a segmented annular conical spring having angularly spaced segments 54.
  • a liner disk 56 (FIG. 2) preferably is captured between spring 52 and the open end of neck finish 24. Liner disk 56 can be induction or conduction sealed to neck finish 24 after package 20 has been filled with product and closure 22 applied to the neck finish.
  • spring 52 could be a continuous annular spring that engages the neck finish both to seal the package and to bias closure 22 away from neck finish 24.
  • Spring segments 54 preferably extend downwardly and inwardly from closure base wall 34, as best seen in FIG. 11.
  • spring segments 54 (or a continuous annular spring) could extend from the inside surface of skirt 36 adjacent to base wall 34.
  • Skirt 36 preferably includes a pair of diametrically opposed external finger pads 58 (FIGS. 1 and 3) at 90° spacing from internal lugs 46.
  • closure 22 is removable in either of two child-resistant modes of operation.
  • a first child-resistant squeeze-and-turn mode of operation illustrated in FIGS. 4-5, flexible resilient skirt 36 is squeezed at finger pads 58 to ovalize the skirt and thereby move internal lugs 46 radially outwardly with respect to external lugs 30.
  • the closure can be unthreaded from the container neck finish.
  • the second child-resistant push-and -turn mode of operation is illustrated in FIGS. 6-7.
  • Closure 22 is pushed downwardly against the force of spring 52. During such downward motion of the closure, internal cam surface 40 on closure skirt 36 engages external cam surfaces 32 on external lugs 30 to spread and ovalize the closure skirt. When the closure skirt is sufficiently ovalized, the closure can be unthreaded from the container neck finish.
  • FIG. 8 illustrates package 20 in a non-child-resistant mode of operation in which closure 22 is inverted and received by press fit, snap fit or threaded fit onto the open end of neck finish 24. Examples of such inverted non-child-resistant operation are illustrated in US patent documents 2004/0173561 and 2004/0178165.
  • FIGS . 12-14 illustrate a dual-action child-resistant package 60 in accordance with another exemplary embodiment of the present disclosure.
  • Package 60 includes a closure 62 secured to the neck finish 64 of a container 66.
  • Neck finish 64 has one or more external thread segments 28 that are engaged by one or more internal thread segments 38 on the flexible resilient peripheral annular skirt 68 of closure 62.
  • Closure 62 includes a base 70 of which skirt 68 is a part.
  • Base 70 also includes a base wall 72 that covers the open mouth of neck finish 64, and a dispensing opening 74 in base wall 72.
  • a lid 76 is coupled to base 70 by a hinge 79 (FIG. 14) so that Hd 76 can be pivoted between the closed position illustrated in FIG.
  • Hinge 79 can be of any suitable type.
  • At least one internal lug 78 (FIG. 13) is carried by skirt 68.
  • Skirt 68 preferably has a pair of diametrically opposed internal lugs 78 as shown in FIG. 13.
  • Skirt 68 also preferably has diametrically opposed external finger pads 58 at 90° spacing to internal lugs 78.
  • Internal lugs 78 engage a pair of diametrically opposed external lugs 80 on container neck finish 64.
  • Closure lid 76 in the closed position, preferably is coupled to closure base 70 by a child- resistant latch mechanism 82.
  • Latch mechanism 82 can be of any suitable type, with the type illustrated in U.S. patent document 2005/0023285 being preferred.
  • closure 62 is threaded onto container neck finish 64, internal lugs 78 on closure skirt 68 engage and ride over external lugs 80 on neck finish 64 until lugs 78 snap behind lugs 80 in the child-resistant position of FIG. 13.
  • the entire closure 62 can be removed from container neck finish 64 in a squeeze-and-turn first child-resistant mode of operation, in which finger pads 58 are squeezed to ovalize skirt 68 until lugs 78 clear lugs 80, at which point closure 62 can be unthreaded from the container neck finish.
  • the package alternatively can be opened in a second child-resistant mode of operation by releasing latch 82 and pivoting lid 76 away from base 70 to enable product be dispensed through opening 74.
  • the disclosure can as readily be implemented in conjunction with a dual-wall or multiple- wall closure, in which the thread segments are disposed on an inner wall for securing the closure to a container neck finish and the child-resistance mechanisms are disposed on intermediate and/or outer walls spaced from the inner wall.
  • the exemplary closures are comprised of one-piece plastic shells.
  • additional components can be included, such as sealing liners or discs.
  • the disclosure is intended to embrace these and all other modifications and variations as fail within the spirit and broad scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
  • Bag Frames (AREA)

Abstract

A dual-action child-resistant package includes a container having a neck finish with an open mouth, at least one external thread segment, and at least one external lug spaced from the thread segment and having an angled cam surface facing axially toward the open mouth. A closure has a peripheral skirt, at least one internal thread segment for engagement with the external thread segment on the container neck finish, an internal angled cam surface on the skirt, at least one internal lug on the skirt for engagement with the external lug on the neck finish, and a flexible resilient spring for engaging the neck finish and biasing the closure away from the neck finish. The closure is threaded onto the neck finish until the internal lug on the skirt moves over the external lug on the neck finish to resist unthreading of the closure from the neck finish. The closure is removable from the neck finish by: (1) squeezing the skirt to ovalize the skirt such that the internal lug on the skirt moves radially outwardly from the external lug on the neck finish whereupon the closure can be unthreaded from the neck finish, and (2) pushing the closure over the neck finish against the spring until the cam surface on the external lug engages the internal angled cam surface on the skirt to ovalize the skirt until the internal lug on the skirt moves radially outwardly from the external lug on the neck finish whereupon the closure can be unthreaded from the neck finish.

Description

DUAL-ACTION CHILD-RESISTANT PACKAGE AND CHILD-RESISTANT CLOSURE FOR SUCH A PACKAGE
The present disclosure relates to child-resistant packages, and more particularly to a package that is adapted to be opened in either of (at least) two child-resistant modes of operation.
Background and Summary of the Disclosure A general object of the present disclosure is to provide a child-resistant package, and to provide a closure and a container for such a package, in which the package can be opened to dispense product in either of (at least) two child-resistant modes of operation.
The present disclosure embodies a number of aspects that can be implemented separately from or in combination with each other. A dual-action child-resistant package, in accordance with one aspect of the present disclosure, includes a container having a neck finish with an open mouth, at least one external thread segment, and at least one external lug spaced from the thread segment and having an angled cam surface facing axially toward the open mouth. A closure has a peripheral skirt, at least one internal thread segment for engagement with the at least one external thread segment on the container neck finish, an internal angled cam surface on the skirt, at least one internal lug on the skirt for engagement with the at least one external lug on the neck finish, and a flexible resilient spring for engaging the neck finish and biasing the closure away from the neck finish. The closure is threaded onto the neck finish until the internal lug on the skirt moves over the external lug on the neck finish to resist unthreading of the closure from the neck finish. The closure is removable from the neck finish by: ( 1 ) squeezing the skirt to ovalize the skirt such that the at least one internal lug on the skirt moves radially outwardly from the at least one external lug on the neck finish whereupon the closure can be unthreaded from the neck finish, and (2) pushing the closure over the neck finish against the spring until the cam surface on the at least one external lug engages the internal angled cam surface on the skirt to ovalize the skirt until the at least one internal lug on the skirt moves radially outwardly from the at least one external lug on the neck finish whereupon the closure can be unthreaded from the neck finish. The peripheral skirt of the closure preferably includes a first portion on which the at least one internal thread segment is disposed, and a second portion extending from the first portion on which the internal cam surface and the at least one internal lug are disposed.
A dual-action child-resistant package, in accordance with another aspect of the present disclosure, includes a container having a mouth, at least one external thread segment and a pair of diametrically opposed external lugs on a side of the thread segment remote from the mouth. A plastic closure includes a base with a dispensing opening, at least one internal thread segment for engagement with the external thread segment on the neck finish, and a flexible resilient skirt with a pair of diametrically opposed internal lugs for engagement with the external lugs to prevent unthreading of the closure from the neck finish. The skirt is squeezable to ovalize the skirt and move the internal lugs out of engagement with the external lugs, and thereby permit unthreading of the closure from the neck finish. A lid is coupled to the base by a hinge for movement between a closed position overlying the dispensing opening and an open position spaced from the dispensing opening. A child-resistant latch extends between the Hd and the base to permit opening of the lid with respect to the base. Thus, the package can be opened in a first child resistant mode of operation by squeezing the skirt and unthreading the entire closure from the container neck finish, and in a second child-resistant mode of operation by opening the lid with respect to the base to expose the dispensing opening. Brief De
The disclosure, together with additional objects, features, advantages and aspects thereof, will best be understood from the following description, the appended claims and the accompanying drawings, in which: FIG. l isa perspective view of a closure and container package in accordance with an exemplary embodiment of the present disclosure;
FIG. 2 is a fragmentary sectional view of a portion of the package illustrated in FIG. 1;
FIG. 3 is a sectional view taken substantially along the line 3-3 in FIG. 2; FIG.4 is a fragmentary sectional view on an enlarged scale of the portion of FIG.
2 within the area 4;
FIG. 5 is a fragmentary sectional view similar to that of FIG. 4 showing a first child-resistant mode of operation of the package;
FIG. 6 is a fragmentary sectional view similar to that of FIG. 2 showing a second child-resistant mode of opening the package;
FIG. 7 is a fragmentary sectional view on an enlarged scale of the portion of FIG. 6 within the area 7;
FIG. 8 is a fragmentary elevational view of the package in FIG. 1 in a non-child- resistant mode of operation; FIG. 9 is a fragmentary elevational view that illustrates the neck finish of the container in the package of FIGS. 1-8;
FIG. 10 is a fragmentary perspective view of the container neck finish in FIG. 9;
FIG. 11 is a sectional view of the closure in the package of FIGS. 2-7; FIG. 12 is a fragmentary perspective view of a child-resistant package in accordance with a second exemplary embodiment of the present disclosure;
FIG. 13 is a sectional view taken substantially along the line 13-13 in FIG. 12; and FIG. 14 is a fragmentary sectional view taken substantially along the line 14-14 in.FIG. 13.
Detailed Description of Preferred Embodiments
FIGS . 1-11 illustrate a dual-action child-res istant package 20 in accordance with a first exemplary embodiment of the present disclosure. Package 20 includes a child-resistant closure 22 threaded onto the neck finish 24 of a container 26. Container neck finish 24 includes at least one external thread segment 28 for securement of closure 22 in a child-resistant mode of operation. (The term "thread segment" is employed in its usual broad sense to include both single and multiple threads, and both interrupted and continuous threads.) Neck finish 24 also includes at least one external lug 30, preferably diametrically opposed external lugs 30 as best seen in FIGS. 3 and 9. Each external lug 30 has an angled cam surface 32 that faces axially toward or in the direction of the open end or mouth of neck finish 24. Cam surfaces 32 preferably are flat, although conical, convex or concave cam surfaces could be employed. Closure 22 includes a base wall 34 having a peripheral flexible resilient annular skirt 36. Skirt 36 includes at least one internal thread segment 38 for engagement with external thread segment 28 on neck Finish 24 to secure closure 22 to neck finish 24 in a dual-action child-resistant mode of operation. Internal thread segment 38 is disposed on a first portion of skirt 36 adjacent to base wall 34. A second portion of skirt 36 extending remotely of base wall 34 includes an angled internal cam surface 40. Cam surface 40 preferably is conical, and most preferably extends entirely around skirt 36 except where interrupted by internal lugs as will be described. Internal surface 40 preferably is formed on a portion 42 of skirt 36 that flares radially outwardly at the open edge of the skirt and terminates in a cylindrically extending portion 44.
At least one internal first lug is disposed on the lower portion of skirt 36, preferably a pair of diametrically opposed internal first lugs 46 as best seen in FIG. 3. Each internal first lug 46 preferable has an angled cam surface 48, by means of which lugs 46 ride over lugs 30, ovalizing flexible resilient skirt 36 until internal first lugs 46 snap behind external lugs 30. Each internal first lug 46 preferably has an associated adjacent internal second lug 50 spaced from lug 46 so that external lugs 30 can be received between lugs 46,50. Lugs 50 prevent additional or over-threading of the closure onto the neck finish. A flexible resilient spring 52 is carried by closure 22 for engaging neck finish 24 and biasing closure 22 away from the neck finish. In the illustrated embodiment of FIGS. 2 and 11, spring 52 comprises a segmented annular conical spring having angularly spaced segments 54. A liner disk 56 (FIG. 2) preferably is captured between spring 52 and the open end of neck finish 24. Liner disk 56 can be induction or conduction sealed to neck finish 24 after package 20 has been filled with product and closure 22 applied to the neck finish. As an alternative, spring 52 could be a continuous annular spring that engages the neck finish both to seal the package and to bias closure 22 away from neck finish 24. Spring segments 54 preferably extend downwardly and inwardly from closure base wall 34, as best seen in FIG. 11. As an alternative, spring segments 54 (or a continuous annular spring) could extend from the inside surface of skirt 36 adjacent to base wall 34. Skirt 36 preferably includes a pair of diametrically opposed external finger pads 58 (FIGS. 1 and 3) at 90° spacing from internal lugs 46.
With closure 22 threaded onto container 26 as illustrated in FIGS. 1-3, closure 22 is removable in either of two child-resistant modes of operation. In a first child-resistant squeeze-and-turn mode of operation illustrated in FIGS. 4-5, flexible resilient skirt 36 is squeezed at finger pads 58 to ovalize the skirt and thereby move internal lugs 46 radially outwardly with respect to external lugs 30. When the skirt has been squeezed sufficiently that lugs 46 clear lugs 30 as shown in FIG. 5, the closure can be unthreaded from the container neck finish. The second child-resistant push-and -turn mode of operation is illustrated in FIGS. 6-7. Closure 22 is pushed downwardly against the force of spring 52. During such downward motion of the closure, internal cam surface 40 on closure skirt 36 engages external cam surfaces 32 on external lugs 30 to spread and ovalize the closure skirt. When the closure skirt is sufficiently ovalized, the closure can be unthreaded from the container neck finish.
FIG. 8 illustrates package 20 in a non-child-resistant mode of operation in which closure 22 is inverted and received by press fit, snap fit or threaded fit onto the open end of neck finish 24. Examples of such inverted non-child-resistant operation are illustrated in US patent documents 2004/0173561 and 2004/0178165.
FIGS . 12-14 illustrate a dual-action child-resistant package 60 in accordance with another exemplary embodiment of the present disclosure. Package 60 includes a closure 62 secured to the neck finish 64 of a container 66. Neck finish 64 has one or more external thread segments 28 that are engaged by one or more internal thread segments 38 on the flexible resilient peripheral annular skirt 68 of closure 62. Closure 62 includes a base 70 of which skirt 68 is a part. Base 70 also includes a base wall 72 that covers the open mouth of neck finish 64, and a dispensing opening 74 in base wall 72. A lid 76 is coupled to base 70 by a hinge 79 (FIG. 14) so that Hd 76 can be pivoted between the closed position illustrated in FIG. 14 overlying dispensing opening 74 and an open position spaced from the dispensing opening. Hinge 79 can be of any suitable type. At least one internal lug 78 (FIG. 13) is carried by skirt 68. Skirt 68 preferably has a pair of diametrically opposed internal lugs 78 as shown in FIG. 13. Skirt 68 also preferably has diametrically opposed external finger pads 58 at 90° spacing to internal lugs 78. Internal lugs 78 engage a pair of diametrically opposed external lugs 80 on container neck finish 64. Closure lid 76, in the closed position, preferably is coupled to closure base 70 by a child- resistant latch mechanism 82. Latch mechanism 82 can be of any suitable type, with the type illustrated in U.S. patent document 2005/0023285 being preferred. As closure 62 is threaded onto container neck finish 64, internal lugs 78 on closure skirt 68 engage and ride over external lugs 80 on neck finish 64 until lugs 78 snap behind lugs 80 in the child-resistant position of FIG. 13. The entire closure 62 can be removed from container neck finish 64 in a squeeze-and-turn first child-resistant mode of operation, in which finger pads 58 are squeezed to ovalize skirt 68 until lugs 78 clear lugs 80, at which point closure 62 can be unthreaded from the container neck finish. The package alternatively can be opened in a second child-resistant mode of operation by releasing latch 82 and pivoting lid 76 away from base 70 to enable product be dispensed through opening 74.
There thus have been disclosed a dual-action child-resistant package, and closures and containers for such a package, that fully satisfy all of the objects and aims previously set forth. The disclosure has been presented in conjunction with several exemplary embodiments, and modifications and variations have been described. Other modifications and variations readily will suggest themselves to persons of ordinary skill in the art in view of the foregoing description. For example, the disclosure has been presented in conjunction with so-called single- wall closures in which the internal thread segments and the chid-resistance lugs are disposed on the inside of a single wall or skirt. However, the disclosure can as readily be implemented in conjunction with a dual-wall or multiple- wall closure, in which the thread segments are disposed on an inner wall for securing the closure to a container neck finish and the child-resistance mechanisms are disposed on intermediate and/or outer walls spaced from the inner wall. The exemplary closures are comprised of one-piece plastic shells. However, additional components can be included, such as sealing liners or discs. The disclosure is intended to embrace these and all other modifications and variations as fail within the spirit and broad scope of the appended claims.

Claims

Claims
1.
1 A dual-action child-resistant package that includes:
2 a container (26) having a neck finish (24) with an open mouth, at least one
3 external thread segment (28), and at least one external lug (30) spaced from said external thread , 4 segment and having an angled cam surface (32) facing axially toward said mouth, and
5 a closure (22) having a peripheral skirt (36), at least one internal thread segment
6 (3 S) for engagement with said at least one external thread segment on said neck finish, an internal
7 angled cam surface (40) on said skirt, at least one internal lug (46) on said skirt for engagement
8 with said at least one external lug on said neck finish, and a flexible resilient spring (54) for
9 engaging said neck finish and biasing said closure away from said neck finish,
10 said closure being threadable onto said container neck finish until said internal lug
11 (46) on said skirt moves over said external lug (30) on said neck finish to resist unthreading of
12 said closure from said neck finish,
13 said closure being removable from said neck finish by: (1) squeezing said skirt to
14 ovalize said skirt such that said at least one internal lug on said skirt moves radially outwardly
15 from said at least one external lug on said neck finish whereupon said closure can be unthreaded
16 from said neck finish, and (2) pushing said closure over said neck finish against said spring until
17 said cam surface on said at least one external lug engages said internal cam surface on said skirt
18 to ovalize said skirt until said at least one internal lug on said skirt moves radially outwardly from
19 said at least one external lug on said neck finish whereupon said closure can be unthreaded from
20 said neck finish.
2. The package set forth in claim 1 wherein said peripheral skirt (36) includes a first portion on which said at least one internal thread segment (38) is disposed, and a second portion extending from said first portion on which said internal cam surface (40) and said at least one internal lug (46) are disposed.
3. The package set forth in claim 1 wherein said internal cam surface (40) on said skirt is conical.
4. The package set forth in claim 3 wherein said at least one internal lug (46) on said skirt includes a pair of lugs (46, 50) on said skirt angularly spaced from each other to receive said at least one external lug (30) when said closure is threaded onto said neck finish.
5. The package set forth in claim 4 wherein one of said pair of internal lugs has an angled cam surface (48) to cam said one lug over said external lug during threaded application of said closure to said neck finish.
6. The package set forth in claim 3 wherein said neck finish has a pair of said external lugs (30) diametrically spaced from each other on said neck finish, and said closure has a pair of said internal lugs (46) diametrically spaced from each other on said skirt.
7. A closure that includes a one-piece plastic shell having a flexible resilient annular skirt (36) with a first portion having at least one internal thread segment (38), a second portion extending from said first portion and having an internal cam surface (40) angled away from said first portion, at least one internal lug (46) on said second portion of said skirt, and a flexible resilient spring (54) for engaging a container neck finish when said closure is threaded onto the neck finish.
8. The closure set forth in claim 7 wherein said cam surface (40) is conical.
9. The closure set forth in claim 8 wherein said at least one internal lug includes diametrically opposed internal lugs (46) on said skirt.
10. The closure set forth in claim 9 wherein said skirt includes a pair of diametrically opposed external finger pads (58) at 90° spacing to said internal lugs.
11. A child-resistant package that includes: a container (66) having a mouth, at least one external thread segment (28) and a pair of diametrically opposed external lugs (80) on a side of said at least one external thread segment remote from said mouth, and a plastic closure (62) that includes a base (70) with a dispensing opening (74), at least one internal thread segment (38) for engagement with said at least one external thread segment on said neck finish, a flexible resilient peripheral skirt (68) with a pair of diametrically opposed internal lugs (78) for engagement with said external lugs to prevent unthreading of said closure from said neck finish, said skirt being squeezable to ovalize said skirt and move said internal lugs out of engagement with said external lugs and permit unthreading of said closure from said neck finish, a lid (76) coupled to said base by a hinge (79) for movement between a closed position overlying said dispensing opening and an open position spaced from said dispensing opening, and a child-resistant latch (82) between said lid and said base to permit opening of said lid with respect to said base, said package being operable in two child-resistant modes of operation: (1) by squeezing and turning said peripheral skirt, and (2) by unlatching said child-resistant latch and opening said lid.
12. The package set forth in claim 11 wherein said skirt includes a pair of diametrically opposed external finger pads (58) at 90° spacing to said internal lugs.
13. The package set forth in claim 11 wherein said at least one internal thread segment (38) is disposed on said peripheral skirt (68).
14. A closure that includes a one-piece plastic shell having: a base (70) with a dispensing opening (74), at least one internal thread segment (38), a flexible resilient skirt (68) with a pair of diametrically opposed internal lugs (78), said skirt being squeezable to ovalize said skirt, a lid (76) coupled to said base by a hinge (79) for movement between a closed position overlying said dispensing opening and an open position spaced from said dispensing opening, and a child-resistant latch (82) between said lid and said base to permit opening of said lid with respect to said base.
15. The closure set forth in claim 14 wherein said skirt includes a first portion on which said at least one internal thread segment (38) is disposed and a second portion extending from said first portion on which said internal lugs (78) are disposed.
16. The closure set forth in claim 15 wherein said skirt includes a pair of diametrically opposed external finger pads (58) at 90° spacing to said internal lugs.
EP07810577A 2006-12-15 2007-07-18 Dual-action child-resistant package and child-resistant closure for such a package Not-in-force EP2091835B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/639,896 US20080142468A1 (en) 2006-12-15 2006-12-15 Dual-action child-resistant package and child-resistant closure for such a package
PCT/US2007/016283 WO2008073151A1 (en) 2006-12-15 2007-07-18 Dual-action child-resistant package and child-resistant closure for such a package

Publications (2)

Publication Number Publication Date
EP2091835A1 true EP2091835A1 (en) 2009-08-26
EP2091835B1 EP2091835B1 (en) 2011-02-16

Family

ID=38704262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07810577A Not-in-force EP2091835B1 (en) 2006-12-15 2007-07-18 Dual-action child-resistant package and child-resistant closure for such a package

Country Status (10)

Country Link
US (1) US20080142468A1 (en)
EP (1) EP2091835B1 (en)
CN (1) CN101626959B (en)
AT (1) ATE498560T1 (en)
BR (1) BRPI0720058A2 (en)
CA (1) CA2673101A1 (en)
DE (1) DE602007012578D1 (en)
IL (1) IL198771A0 (en)
MX (1) MX2009005729A (en)
WO (1) WO2008073151A1 (en)

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Also Published As

Publication number Publication date
ATE498560T1 (en) 2011-03-15
IL198771A0 (en) 2010-02-17
DE602007012578D1 (en) 2011-03-31
WO2008073151A1 (en) 2008-06-19
US20080142468A1 (en) 2008-06-19
EP2091835B1 (en) 2011-02-16
CN101626959B (en) 2011-10-05
MX2009005729A (en) 2009-06-08
BRPI0720058A2 (en) 2013-04-09
CA2673101A1 (en) 2008-06-19
CN101626959A (en) 2010-01-13

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