US3827592A - Childproof container closure - Google Patents

Childproof container closure Download PDF

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Publication number
US3827592A
US3827592A US00292125A US29212572A US3827592A US 3827592 A US3827592 A US 3827592A US 00292125 A US00292125 A US 00292125A US 29212572 A US29212572 A US 29212572A US 3827592 A US3827592 A US 3827592A
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US
United States
Prior art keywords
neck
cover
key
childproof closure
closure
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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US00292125A
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English (en)
Inventor
W Deussen
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Individual
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Individual
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    • 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
    • B65D50/06—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 different actions in succession
    • B65D50/067—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 different actions in succession using integral or non-integral accessories, e.g. tool, key

Definitions

  • My present invention relates to a childproof closure for a container, such as a medicine bottle, of the type having an open-topped neck normally overlain by a cover which is to be secured against removal by unauthorized persons, especially children.
  • Such containers have in the past been provided with a variety of closures designed to deny access to small children who could misuse their contents.
  • Some of these conventional closures rely on a sequence of manipulations which, it is assumed, the very young are unable to perform; actually, however, some children are more adept than adults in carrying out these relatively com plex operations.
  • reliance is placed on the sheer force required to remove the cover; frequently in such cases, however, weak or elderly grownups having need for the medicine area also unable to overcome the frictional resistance of the closure and must resort to coins, pliers or other readily available utensils which are equally accessible to unauthorized members of the household.
  • the general object of my present invention is to provide an improved closure for containers of this description which cannot be opened by unauthorized persons even with the aid of common household tools.
  • a more particular object isto provide a closure of this character utilizing a special key which can be kept in a safe place away from the container and which, in the hands of a small child somehow gaining access thereto, will be inoperative because of the need for the application of a certain pressure to open the cover.
  • a childproof closure according to my invention comprises a cover provided with a depending skirt designed to be fitted around the container neck, the neck and the skirt having respective external and internal cam means (such as screw threads or a bayonet lock) normally engaging each other for holding the cover onto the open top of the neck with sufficient frictional force to resist removal by the bare hands of a child.
  • cam means such as screw threads or a bayonet lock
  • Such removal canbe effected, however, with the aid of a key detachably fitting onto the cover for imparting thereto an untwisting rotary motion about the axis of the neck, the key and the cover being respectively provided with mating first and second formations such as teeth or serrations arrayed about that axis.
  • the serrations on the cover and on the key have flanks which, in their position of operative engagement, are inclined with reference to the neck axis at an angle sufficient to exert upon the key an upward camming force requiring a countervailing downward pressure for keeping the key engaged with the cover.
  • This downward pressure need not be particularly great but must be exerted in a direction (downward) which seemingly opposes the intended result of lifting the cover; thus, a small child is extremely unlikely to apply such a pressure correctly whereas a reasonably alert adult, even if physically weak, will be able to open the closure with little difficulty.
  • the two sets of mating serrations on complementary annular surfaces on the key and the cover, these surfaces being of frustoconical or rounded configuration so as to have straight or curved generatrices whose extensions converge on the axis of the neck.
  • the serrations of the cover occupy an upwardly converging outer peripheral surface thereof, the key forming a socket for this peripheral surface.
  • the external cam means may be formed directly on the container neck or on an ancillary member secured to that neck.
  • an ancillary member may be an elastic ring slipped from above around an outer peripheral bead of the container neck so as to come to rest below that bead which thereby prevents the ring from being stripped off.
  • the ring is part of a sleeve with a J-proflle defining an upwardly open annular channel whose inner wall is constituted by that ring and whose outer wall rises past the serrated peripheral surface of the cover to form therewith an upwardly diverging annular gap adapted to receive an annular flange of the key having a downwardly converging profile.
  • the sleeve which affords only restricted access to the serrations of the cover while being freely rotatable with reference thereto, defeats any attempt to unscrew the cover by gripping the skirt with a pair of pliers.
  • Such a protective sleeve, held against rotation, could also be used in an embodiment in which the cover skirt is directly threaded onto the container.
  • FIG. 1 is an elevational view, partly in section, of a container top provided with a closure according to the invention, including a detachable key illustrated in disengaged position;
  • FIG. 2 is a view similar to FIG. 1, showing a modified closure according to the invention with its key in engaged position;
  • FIG. 3 is a top view of the key shown in FIG. 2.
  • FIG. 1 shows the upper part of a container 1, such as a glass bottle, terminating in an upwardly open neck la with integral male threads 2 and an integral outer peripheral bead 5 below these threads.
  • Bead 5 sometimes referred to as a transport ring, is conventionally used during manufacture to help transfer the molded preform or parison of a bottle to a blow mold in which it receives its final shape; the outer diameter of this bead is generally larger than that of the threads 2.
  • a closure member 3 of rubber or synthetic elastomeric material, forms a cover 3a for the open top of neck la and a depending skirt 3b integral with that cover, this skirt having female threads 3c mating with the male threads 2 of neck la.
  • the skirt 3b is flared outwardly at 7 and terminates in an inner peripheral lip 6 which underlies the bead 5 and resists the detachment of closure member 3 from neck la by an unscrewing motion.
  • the elasticity of member 3 is sufficient to let the lip 6 clear the bead 5 when that member is fitted onto the container with a downward thrust, the lip 6 thereupon contracting and bearing from below upon the bead 5 with sufficient force to hold the cover 3a firmly onto a gasket 4 (e.g. of cork) which rests on the neck la.
  • a gasket 4 e.g. of cork
  • the outwardly flared portion 7 of skirt 3b is formed with a peripheral recess 7a receiving a band 8, e.g. of sheet metal or plastic, which is slipped into that recess when a container is closed for the first time after having been filled.
  • the band 8, which may be of a color contrasting with that of the closure member, is ruptured by the radial expansion of lip 6 upon the first removal of mem ber 3 from the container; thus, the intact condition of the band indicates that the original contents of the vessel have remained untouched.
  • the serrated surface 10 is curved so as to converge upwardly, with the flanks of its teeth inclined relatively to the axis 0 of the neck la so as to give rise to an upward force component tending to separate the key 11 from the cover 3a when the key is rotated with reference to container 1 after having been fitted onto the cover.
  • a certain downwardly directed axial pressure must be maintained to keep the serrations 10, 12 engaged during rotation.
  • Key 11 is essential at least for the first removal of closure member 3.
  • Key 11 may be supplied with the container 1 in a common package, e.g. while being held in operative position by an envelope of transparent foil shrunk onto the container neck so that the purchaser will readily know how to use it; upon removal of the envelope, the key drops off and should be stored in a safe place inaccessible to children or other unauthorized members of the household.
  • FIGS. 2 and 3 provides additional protection against removal of a closure member by such means as pliers or perhaps the use of ones teeth.
  • a container 21 has a neck 25 provided at its top with an outer peripheral bead 22.
  • Sleeve 33 has a J-profile defining an upwardly open annular channel 330 between the ring 33a and an outer wall 33b, the latter being provided with external corrugations 33d.
  • Sleeve 33a which constitutes the inner wall of channel 330, bears with its upper edge upon the underside of bead 22.
  • Cover 23a overlying the neck 25, brackets the bead 22 between its skirt 23b and an inner annular flange 36.
  • Channel 33c is wide enough to enable free relative rotation of members 23 and 33.
  • Zone 38 of cover 23a is upwardly tapered and serrated in a manner similar to that of zone 10 of FIG. 1.
  • Zone 38 is separated from the top of outer wall 33b by a narrow, upwardly diverging annular gap 39 accommodating a flange 35 of complementary profile on a key 31, this flange forming a serrated socket 6 similar to that shown at 12 in FIG. 1.
  • the skirt 23b being entirely surrounded by the wall 33b, need not have a smooth outer surface so that the serrations of zone 38 may extend downwardly across that surface.
  • a protective sleeve similar to member 33 could also be used with the container 1 of FIG. 1 if the skirt 3b terminates above bead 5 and the sleeve engages that bead with the aid of a formation similar to lip 6 fitting more or less snugly between the bead 5 and a shoulder lb defined by the junction of the container body with its neck la.
  • the sleeve should not be readily rotatable about the neck 1a but should grip that neck with sufficient force to resist any attempt at rotating the skirt 3b by a clamping force applied through that sleeve.
  • the key 31 of FIG. 2 could be externally provided with the finger ribs 13 of key 1 1 in lieu of the corrugations 31a, or vice versa.
  • the cover 3a or 23a could be designed as a serrated socket with upwardly diverging cavity, the key then having a downwardly tapering raised surface with mating serrations fitting into that socket, the resultingcamming action again tending to separate the key from the cover upon the application of a torque.
  • a childproof closure for a container having an open-topped neck comprising:
  • a cover for said neck having a depending skirt provided with internal cam means matingly engaging said external cam means for normally holding said cover onto the open top of said neck with sufficient frictional force to resist removal by the bare hands of a child;
  • a key detachably fitting onto said cover for imparting to the latter an untwisting rotary motion about an axis disengaging said cam means from each other, said key and said cover being respectively provided with mating first and second formations arrayed about said axis.
US00292125A 1972-03-22 1972-09-25 Childproof container closure Expired - Lifetime US3827592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2213887A DE2213887C3 (de) 1972-03-22 1972-03-22 Sicherheitsverschluß fur Behälter, beispielsweise Arzneimittelflaschen

Publications (1)

Publication Number Publication Date
US3827592A true US3827592A (en) 1974-08-06

Family

ID=5839770

Family Applications (1)

Application Number Title Priority Date Filing Date
US00292125A Expired - Lifetime US3827592A (en) 1972-03-22 1972-09-25 Childproof container closure

Country Status (5)

Country Link
US (1) US3827592A (fr)
CH (1) CH554268A (fr)
DE (1) DE2213887C3 (fr)
FR (1) FR2177069B1 (fr)
GB (1) GB1405240A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159780A (en) * 1978-10-02 1979-07-03 Romaine Richard A Child-resistant container assembly
US4386696A (en) * 1976-03-02 1983-06-07 L'oreal Device for storing separately two products which are to be dispensed simultaneously
US4669620A (en) * 1986-05-16 1987-06-02 Daniel Coifman Tamper-evident, child-resistant closure and method
US5411157A (en) * 1990-05-30 1995-05-02 Beeson And Sons Limited Container and the manufacture thereof
USD381907S (en) * 1995-09-18 1997-08-05 Beeson And Sons Limited Container closure
US5735181A (en) * 1996-03-05 1998-04-07 Anderson; Arthur G. Apparatus for removing a safety cap from a safety container
US20110227419A1 (en) * 2010-03-17 2011-09-22 Seiko Epson Corporation Circuit Device, Electronic Apparatus And Power Supply Circuit
US20120295343A1 (en) * 2010-11-22 2012-11-22 Bear Adam J Closure assembly for cell culture apparatus
EP2942307A1 (fr) 2014-05-09 2015-11-11 "KAJ" Spolka z Ograniczona Odpowiedzialnoscia Couvercle sécurisé avec un élément de garantie principalement pour l'industrie pharmaceutique
US20170139216A1 (en) * 2015-11-18 2017-05-18 Thomas Crenko Magnifying bottle assembly with improved sealing capability
US11618619B2 (en) * 2017-11-21 2023-04-04 Drug Plastics & Glass Company, Inc. Child-resistant single wall squeeze and turn closure and container assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK116677A (da) * 1977-03-17 1978-09-18 J Palsson Medicinboks med sikkerhedslaag
DE102006015913A1 (de) 2006-04-05 2007-10-11 Bernd Hansen Sicherheitseinrichtung für mindestens einen Behälter, insbesondere blasgeformten Kunststoffbehälter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705662A (en) * 1971-07-28 1972-12-12 Sunbeam Plastics Corp Safety closure for medicine bottles and the like
US3771681A (en) * 1972-01-31 1973-11-13 H Mart Child-proof container cap

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705662A (en) * 1971-07-28 1972-12-12 Sunbeam Plastics Corp Safety closure for medicine bottles and the like
US3771681A (en) * 1972-01-31 1973-11-13 H Mart Child-proof container cap

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386696A (en) * 1976-03-02 1983-06-07 L'oreal Device for storing separately two products which are to be dispensed simultaneously
US4159780A (en) * 1978-10-02 1979-07-03 Romaine Richard A Child-resistant container assembly
US4669620A (en) * 1986-05-16 1987-06-02 Daniel Coifman Tamper-evident, child-resistant closure and method
US5411157A (en) * 1990-05-30 1995-05-02 Beeson And Sons Limited Container and the manufacture thereof
USD381907S (en) * 1995-09-18 1997-08-05 Beeson And Sons Limited Container closure
US5735181A (en) * 1996-03-05 1998-04-07 Anderson; Arthur G. Apparatus for removing a safety cap from a safety container
US20110227419A1 (en) * 2010-03-17 2011-09-22 Seiko Epson Corporation Circuit Device, Electronic Apparatus And Power Supply Circuit
US8866346B2 (en) 2010-03-17 2014-10-21 Seiko Epson Corporation Circuit device, electronic apparatus and power supply circuit
US20120295343A1 (en) * 2010-11-22 2012-11-22 Bear Adam J Closure assembly for cell culture apparatus
US10100273B2 (en) * 2010-11-22 2018-10-16 Corning Incorporated Closure assembly for cell culture apparatus
US10626362B2 (en) 2010-11-22 2020-04-21 Corning Incorporated Closure assembly for cell culture apparatus
EP2942307A1 (fr) 2014-05-09 2015-11-11 "KAJ" Spolka z Ograniczona Odpowiedzialnoscia Couvercle sécurisé avec un élément de garantie principalement pour l'industrie pharmaceutique
US20170139216A1 (en) * 2015-11-18 2017-05-18 Thomas Crenko Magnifying bottle assembly with improved sealing capability
US9784979B2 (en) * 2015-11-18 2017-10-10 Thomas Crenko Magnifying bottle assembly with improved sealing capability
US11618619B2 (en) * 2017-11-21 2023-04-04 Drug Plastics & Glass Company, Inc. Child-resistant single wall squeeze and turn closure and container assembly

Also Published As

Publication number Publication date
DE2213887B2 (de) 1978-01-19
GB1405240A (en) 1975-09-10
DE2213887C3 (de) 1978-09-28
FR2177069A1 (fr) 1973-11-02
FR2177069B1 (fr) 1977-02-18
DE2213887A1 (de) 1973-10-04
CH554268A (de) 1974-09-30

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