US3682343A - Safety closure device - Google Patents

Safety closure device Download PDF

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Publication number
US3682343A
US3682343A US57114A US3682343DA US3682343A US 3682343 A US3682343 A US 3682343A US 57114 A US57114 A US 57114A US 3682343D A US3682343D A US 3682343DA US 3682343 A US3682343 A US 3682343A
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US
United States
Prior art keywords
tubular members
closure
tubular member
lost
limit
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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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US57114A
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English (en)
Inventor
William James Landen
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.)
Eyelet Specialty Co Inc
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Eyelet Specialty Co Inc
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Publication date
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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
    • B65D50/04—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
    • B65D50/041—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 the closure comprising nested inner and outer caps or an inner cap and an outer coaxial annular member, which can be brought into engagement to enable removal by rotation

Definitions

  • the References cued parts of the closure-cap member have a limited axial UNITED STATES PATENTS lost-motion connection, and deformable means on one of the tubular members has cammed engagement with 3,374,912 3/1968 Velt ..2l5/9 a coacting part of the other tubular member during l MCKlm the course of lospmotjon displacement Thus lostqno- 3,055,524 9/1962 Glasbrenner ..2l5/9 tion displacement must occur before the bottle can be uncapped.
  • a specific object is to achieve the above-stated object with a construction in which a correct sequence of independent motions of securable closure parts is a pre-requisite for access to the contents of the container.
  • Another object is to achieve the foregoing objects with a simple construction, lending itself to plastics injection-molding fabrication.
  • a specific object is to provide a container and its closure cap with integral formations inherentlyachieving tamper-proof closure of the container.
  • Another object is to provide an improved threaded closure-cap construction, achieving the foregoing objects in application to externally threaded glass, metal, or plastic bottle necks of conventional design.
  • a further object is to achieve the stated objects with a construction which lends itself to full automation, namely, to automated filling, to automated closure, and to automated assembly with the tamper-proof feature.
  • FIG. 1 is a perspective view showing a container to which closure means of the invention has been applied;
  • FIG. 2 is an enlarged exploded view of two parts of the closure construction of FIG. 1, partly broken-away and in longitudinal section, to reveal internal formatrons;
  • FIG. 3 is a fragmentary view of secured parts of FIG. 1, partly broken-away and in section on the alignment 3-3 of FIG. 1;
  • FIG. 4 is a view similar to FIG. 3 to illustrate the initial axial displacement which is a condition precedent to unthreading the safety closure of the invention
  • FIG. 5 is a sectional view, substantially at the radial plate 5-5 of FIG. 1 to illustrate a modification
  • FIG. 6 is a perspective view of the inner part of the closure of FIG. 5;
  • FIG. 7 is a partly broken-away perspective view of the outer part of the closure of FIG. 5.
  • the invention contemplates selectively openable closure means that is tamper-proof, in the sense that a correctsequence of two deliberate and independent movements of lockable closure elements is necessary in order to achieve access to the contents of the bottle or the like which is protected by the closure.
  • the specific construction that is described involves a bottle member with a threaded neck and a closure-cap member.
  • the latter comprises telescoped relatively rotatable parts, the inner of which threads to the neck, and the outer of which is for manual operation.
  • the parts of the closure-cap member have a limited axial lost-motion connection, and deformable means on one of the tubular members has cammed engagement with a coacting part of the other tubular member during the course of lost-motion displacement.
  • lost-motion displacement must occur before the bottle can be uncapped.
  • the invention provides a cap 10 for closure of a bottle 11 in such manner as to be indistinguishable from any conventional threaded-cap closure.
  • the bottle 11 happens to be shown with a body 12 which is substantially enlarged from its neck 13, which is seen in FIG. 3 to have a reduced dispensing opening 14 and to have external thread formations 15.
  • any similarity with conventional construction ends are not limited to.
  • the closure cap 10 comprises nested inner and outer parts 16-17, shown separately in FIG. 2, and assembled in FIG. 3.
  • the outer part 17 is solely for manual manipulation, and the inner part 16 is solely for closing the bottle opening 14.
  • a deliberate axial relative motion of these nested parts must be accomplished in order to engage them sufficiently to enable unthreading rotation, to remove the cap 10 from the bottle 11.
  • the parts 16-17 may be generally tubular, with adjacent cylindrical surfaces 18-19 which establish a well-piloted, relatively rotatable relationship.
  • the clearance 18 shown in FIGS. 3 and 4 between these surfaces will be understood to have been exaggerated, for better interpretation of the remainder of these figures.
  • the closure parts 16-17 have coacting elements determining their limited axial lost-motion connection.
  • the outer part 17 fully encompasses the inner part 16, and radially inward formations on part 17 establish the retention.
  • the closed end wall 20 provides one retaining limit, and a flange or bead 21 defines the retaining limit at the open end of the outer part 17.
  • Part 17 is shown as of injection-molded plastic,
  • This wall closure includes an outer radial shoulder portion 23 and a central-area region 24 in a common radial plane, for suitable support of a seal disc 25, as of foil-coated cork, or the like.
  • FIG. 3 represents substantially one limit of the lost-motion, wherein the lower end of the inner part 16 is substantially at the bead 21, being shown with slight axial spacing DI therefrom.
  • the parts 16- 17 are declutched; they are therefore free for relative rotation, meaning that no amount of rotary drive at 17 will be adequate to dislodge the static-friction hold, at 15-22 and at 13-25-23.
  • resilient means normally urges the parts 16-17 into the said one-limit position (FIG. 3), for a normal free-wheeling" relation of the outer cap 17 with respect to the inner cap 16.
  • the resilient action upon axial displacement away from this first or normal-limit position, as by pressing the outer cap 17 downwardly, the resilient action is overcome and a clutched relation is established between parts 16-17. The extent of such displacement is suggested at D2 in FIG. 4.
  • the clutch action relies upon a deformable toothed or dog element 26 carried by the outer cap 17 and having cammed engagement with a flared formation 27 on the inner cap 16, in the course of lost-motion movement over the distance D2.
  • An axial skirt 28 integral with the closed end of part 16, is internally characterized with toothed or dog formations 29, with which tooth or dog formations 30 of element 26 mesh, upon cammed radially outward deformation of the latter, as illustrated in FIG. 4.
  • the deformable element 26 is shown in a plurality of four, all integrally molded with the end wall of outer cap 17 and in angularly spaced relation about the central axis.
  • elements 26 are formed within a generally frusto-conical tubular axial projection within cap 17; the outer wall of this projection converges or tapers inwardly, and the toothed or dog formations 30 are molded therein.
  • the inner wall of this projection may be a cylindrical bore 31, with a substantial outward flare or chamfer 32 near the projecting end; the slope at flare 32 preferably substantially matches that of the surface 27.
  • Angularly spaced radial slots 33 in this projection separate and complete the definition of elements 26.
  • the described structure provides the plural elements 26 with free downward ends which are weakened and therefore deformable, in response to the radially outward cam action which results from axial interference with flared surface 27.
  • the available lost-motion displacement D2 is such as to assure a radial lock at 29-30 when outer cap 17 is firmly depressed toward the bottle.
  • Such firm pressure must be maintained while applying unthreading torque, and upon release of such pressure the resilient action of elements 26 reacts on the flare or cam 27 to return the outer cap 17 to the normal free-wheeling" position of FIG. 3.
  • FIGS. 5 to 7 the parts are virtually the same and therefore the same reference numerals are used, where applicable.
  • the only significant difference resides in provision of a ratcheting action, one-way-engaging, in the thread-on direction; this action couples parts 16-17 in the engaging direction, so that no depressing force need be applied to the outer cap 17 when securing the closure.
  • an upper fraction of the periphery of the inner tubular part 16 is circumferentially characterized by a plurality of ratchet teeth 35.
  • the teeth 35 are formed for righthand thread-on drive, and for escapement in the opposite direction.
  • each tooth 35 is defined by a short radial flat 36 between the outer radial limit of one large oblique flat and the inner radial limit of the next adjacent large oblique flat.
  • the radial flats 36 face to receive driving abutment by one or more pawl elements 37, in the clockwise direction, in the sense of FIG. 6.
  • the plurality of pawl elements 37 is preferably at least three, in equal angularly spaced relation, to assure symmetry of ratcheted drive-on torque, and to assure relatively free escapement in the opposite direction of rotation.
  • the pawl elements 37 are shown as locally deformable lugs, extending both circumferentially and radially inward, from integral connection with spaced parts of the bore of outer tubular member 17, as best seen in FIG. 7.
  • each pawl lug 37 is rooted at one side wall 38 of an axial groove 39, in the bore of part 17'.
  • the projecting end 40 of each lug 39 abuts the nearest convenient ratchet flat 36, for the drive-on direction of rotation.
  • lugs 37 are deflected outwardly into the clearance region provided by the associated groove 39, to permit ratcheting escapement, as will be understood.
  • Assembly of the parts is as previously described, except that counterclockwise relative rotation of part 16 within part 17 is desirable to enable nonfouling placement of pawls 37 between ratchet teeth It will be seen that I have disclosed an improved closure construction meeting the stated objects and having great latitude of application, whether the contents to be secured are in liquid, powder, or other solid form.
  • the bottle may be completely conventional, and yet security is reliably afforded through the ability to complete a tight static-friction hold, and, through use of the right combination of axial thrust and unthreading torque, to remove the closure.
  • Tamper-proof selectively openable closure means comprising a body member including an externally threaded neck with an axial-end opening to be selectively opened and closed, and closure-cap means comprising relatively rotatable inner and outer tubular members, said inner member having a closed end and a bore formed to engage the threads of said neck, interengaging means on said tubular members defining a limited axial lost-motion relation therebetween, said tubular members being relatively free to rotate at one limit of said lost-motion, and deformable follower means on one of said tubular members engageable with a coacting cam part of the other of said tubular members during the course of said lost-motion displacement in the direction away from said one limit, said other tubular member also including a part having clutch engagement with said follower means only when the latter has been deformed by cam action; whereby, when said closure-cap means is secured to said neck, a rotation of said outer tubular member in the unthreading direction is operative to dislodge the threaded engagement only after first axially dispense
  • Closure means according to claim 1 wherein said tubular members have overlapping adjacent substantially cylindrical surfaces for substantially concentric piloting of said tubular members.
  • Closure means according to claim 1 wherein said tubular members have ratchet-engaging elements with one-way engagement in the thread-on direction of capping said neck, whereby said freedom for relative rotation applies only for the unthreading direction of driving said outer tubular member with respect to said neck.
  • closure means according to claim 4, wherein said deformable means includes a radially deformable element carried by one of said tubular members and having a resiliently deflectable portion poised for interfering relation with a part of the other tubular member during the course of lost-motion movement from said one limit.
  • Tamper-proof selectively openable closure means comprising a body member including an externally threaded neck with an axial-end opening to be selectively opened and closed, and closure-cap means comprising relatively rotatable inner and outer tubular members, said inner member having a closed end and a bore formed to engage the threads of said neck, the external periphery of said inner tubular member being substantially cylindrical and including a tubular skirt portion projecting axially away from the open end of said inner tubular member, coacting axial-retaining means on said tubular members defining a limited axial lost-motion relation therebetween, said tubular members being relatively free to rotate at one limit of said lost motion, cam means on said inner tubular member and within said skirt, deformable projecting clutch means including a cam-follower element carried by the outer tubular member, and said clutch means having 'cainmed rotation-resisting engagement with said skirt at a relative axial position of said tubular members removed from said one limit but relatively free of such rotation-resisting engagement at substantially said one
  • closure means according to claim 9, in which said axial-retaining means comprises axially spaced radially inwardly directed elements carried by said outer tubular member, whereby said inner tubular member is at all times fully contained within said outer tubular member.
  • Tamper-proof selectively openable closure means comprising a body member including an externally threaded neck with an axial-end opening to be selectively opened and closed, and closure-cap means comprising relatively rotatable inner and outer tubular members, said inner member having a closed end and a bore formed to engage the threads of said neck, the external periphery of said inner tubular member being substantially cylindrical and including a tubular skirt portion projecting axially away from the open end of said inner tubular member, said outer tubular member having a closed end overlapping the closed end of said inner tubular member, coacting-axial-retaining means on said tubular members defining a limited axial lostmotion relation therebetween, said tubular members being relatively free to rotate at one limit of said lost motion, projecting means including an element carried by the closed end of the outer tubular member and having rotation-resisting engagement with said skirt at a relative axial position of said tubular members removed from said one limit but relatively free of such rotationresisting engagement at substantially said one limit, said projecting
  • Tamper-proof selectively openable closure means comprising a body member including a neck with an axial-end opening to be selectively opened and closed, and closure-cap means comprising relatively rotatable inner and outer tubular members in retained axial lost-motion relation, said neck being externally configurated to be engaged with and closed by said closure-cap means with an action which involves at least as a component of such action a first rotational direction to close and the opposite rotational direction to open, said inner member having a closed end and a bore configurated to engage the external configurations of said neck with said action, coacting one-way engagement means between said tubular members and having driving engagement for said first direction of rotation of said outer tubular member and escaping non-driving relation in said opposite direction of rotation of said outer tubular member, and means for selectively connecting said tubular members for rotation in said opposite direction of rotation, said last-mentioned means including a deformable follower element on one of said tubular members engageable with a coacting cam part of the other of said tubular members; during

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US57114A 1970-07-22 1970-07-22 Safety closure device Expired - Lifetime US3682343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5711470A 1970-07-22 1970-07-22

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Application Number Title Priority Date Filing Date
US57114A Expired - Lifetime US3682343A (en) 1970-07-22 1970-07-22 Safety closure device

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US (1) US3682343A (enrdf_load_stackoverflow)
JP (1) JPS5218632B1 (enrdf_load_stackoverflow)
CA (1) CA943494A (enrdf_load_stackoverflow)
GB (1) GB1334023A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771685A (en) * 1970-12-04 1973-11-13 Leeds & Micallef Safety closure assembly
US3776407A (en) * 1972-02-04 1973-12-04 Kerr Glass Mfg Corp Closure
US3822811A (en) * 1972-04-10 1974-07-09 Eyelet Specialty Co Safety closure
USB516032I5 (enrdf_load_stackoverflow) * 1974-06-05 1976-01-27
DE3221164A1 (de) * 1981-06-04 1982-12-23 Peter James Tonteg Mid.Glamorgan Wales Puresevic Verschlussvorrichtung fuer einen behaelter mit einer zylindrischen oeffnung
DE3211150A1 (de) * 1982-03-26 1983-10-06 Zeller Plastik Koehn Graebner Kindersicherer druck-dreh-verschluss
DE3315548A1 (de) * 1983-04-29 1984-12-06 Victor Paris Wassilieff Verschluss, insbesondere kindergesicherter verschluss
US5183173A (en) * 1991-07-29 1993-02-02 Epicor Industries, Inc. Auto venting fuel cap
US5803287A (en) * 1997-04-22 1998-09-08 Owens-Illinois Closure Inc. Consumer friendly package
US6223923B1 (en) 1998-02-17 2001-05-01 Joseph Fishman Lockable safety release gas cap
CN103552721A (zh) * 2013-10-29 2014-02-05 林智勇 酒瓶的制造方法
CN103587810A (zh) * 2013-11-13 2014-02-19 林智勇 防冒瓶的制造方法
WO2014078501A1 (en) 2012-11-15 2014-05-22 Amcor Limited Child resistant tip closure assembly with finger spring
US10370161B2 (en) 2012-11-15 2019-08-06 Amcor Rigid Plastics Usa, Llc Child resistant tip closure assembly with diaphragm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5567446U (enrdf_load_stackoverflow) * 1978-10-25 1980-05-09
US4413743A (en) 1981-10-26 1983-11-08 Rieke Corporation Child-resistant safety closure
IE73239B1 (en) * 1991-07-30 1997-05-21 Wellcome Found Cap for a container
US5238130A (en) * 1992-04-06 1993-08-24 9866143 Ontario Inc. Closure for a container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055524A (en) * 1961-04-03 1962-09-25 Armstrong Cork Co Safety closure
US3063588A (en) * 1960-10-10 1962-11-13 Robert H Mckim Safety bottle closure
US3374912A (en) * 1966-07-18 1968-03-26 Evert D. Velt Safety bottle top

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063588A (en) * 1960-10-10 1962-11-13 Robert H Mckim Safety bottle closure
US3055524A (en) * 1961-04-03 1962-09-25 Armstrong Cork Co Safety closure
US3374912A (en) * 1966-07-18 1968-03-26 Evert D. Velt Safety bottle top

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771685A (en) * 1970-12-04 1973-11-13 Leeds & Micallef Safety closure assembly
US3776407A (en) * 1972-02-04 1973-12-04 Kerr Glass Mfg Corp Closure
US3822811A (en) * 1972-04-10 1974-07-09 Eyelet Specialty Co Safety closure
USB516032I5 (enrdf_load_stackoverflow) * 1974-06-05 1976-01-27
US3986634A (en) * 1974-06-05 1976-10-19 General Motors Corporation Torque limiter mechanism
DE3221164A1 (de) * 1981-06-04 1982-12-23 Peter James Tonteg Mid.Glamorgan Wales Puresevic Verschlussvorrichtung fuer einen behaelter mit einer zylindrischen oeffnung
DE3211150A1 (de) * 1982-03-26 1983-10-06 Zeller Plastik Koehn Graebner Kindersicherer druck-dreh-verschluss
DE3315548A1 (de) * 1983-04-29 1984-12-06 Victor Paris Wassilieff Verschluss, insbesondere kindergesicherter verschluss
US5183173A (en) * 1991-07-29 1993-02-02 Epicor Industries, Inc. Auto venting fuel cap
US5803287A (en) * 1997-04-22 1998-09-08 Owens-Illinois Closure Inc. Consumer friendly package
US6223923B1 (en) 1998-02-17 2001-05-01 Joseph Fishman Lockable safety release gas cap
WO2014078501A1 (en) 2012-11-15 2014-05-22 Amcor Limited Child resistant tip closure assembly with finger spring
EP2920084A4 (en) * 2012-11-15 2016-06-15 Amcor Ltd CHILD SAFE TERMINAL ARRANGEMENT WITH FINGER SPRING
US10046890B2 (en) 2012-11-15 2018-08-14 Amcor Group Gmbh Child resistant tip closure assembly with finger spring
US10370161B2 (en) 2012-11-15 2019-08-06 Amcor Rigid Plastics Usa, Llc Child resistant tip closure assembly with diaphragm
CN103552721A (zh) * 2013-10-29 2014-02-05 林智勇 酒瓶的制造方法
CN103587810A (zh) * 2013-11-13 2014-02-19 林智勇 防冒瓶的制造方法

Also Published As

Publication number Publication date
GB1334023A (en) 1973-10-17
DE2115720B2 (de) 1975-07-03
JPS5218632B1 (enrdf_load_stackoverflow) 1977-05-23
CA943494A (en) 1974-03-12
DE2115720A1 (de) 1972-01-27

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