US3917098A - Safety closure cap - Google Patents

Safety closure cap Download PDF

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Publication number
US3917098A
US3917098A US515647A US51564774A US3917098A US 3917098 A US3917098 A US 3917098A US 515647 A US515647 A US 515647A US 51564774 A US51564774 A US 51564774A US 3917098 A US3917098 A US 3917098A
Authority
US
United States
Prior art keywords
shell
shells
cap
closure cap
skirt
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
Application number
US515647A
Other languages
English (en)
Inventor
Daniel D Acton
Carl E Koontz
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.)
Anchor Hocking Packaging Co
Original Assignee
Anchor Hocking LLC
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 Anchor Hocking LLC filed Critical Anchor Hocking LLC
Priority to US515647A priority Critical patent/US3917098A/en
Priority to CA232,283A priority patent/CA1045079A/en
Priority to FR7526522A priority patent/FR2288040A1/fr
Priority to BE159644A priority patent/BE832954A/xx
Priority to LU73310A priority patent/LU73310A1/xx
Priority to NL7510471A priority patent/NL7510471A/xx
Priority to ES75441686A priority patent/ES441686A1/es
Priority to JP50122952A priority patent/JPS5166080A/ja
Priority to IT51801/75A priority patent/IT1048320B/it
Priority to GB42478/75A priority patent/GB1529707A/en
Priority to DE19752546598 priority patent/DE2546598A1/de
Application granted granted Critical
Publication of US3917098A publication Critical patent/US3917098A/en
Assigned to ANCHOR HOCKING PACKAGING COMPANY reassignment ANCHOR HOCKING PACKAGING COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ANCHOR HOCKING CORPORATION, A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D50/041—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

  • ABSTRACT A safety closure cap is described for use in sealing medicine packages and other packages where it is desirable that persons such as young children cannot open the package.
  • the cap has an inner shell with container engaging thread means and an outer shell rotatably attached to and covering at least a substantial portion of the inner shell. Ratchet means on the shells locks them together when they are turned onto the container as the package is sealed or resealed.
  • the ratchet means is inoperative when the closure cap is turned off so that the outer shell freely rotates on the inner shell.
  • a separate shell connecting means is provided for removal comprising pressure interlock means which may be activated by an adult users gripping portions of the shells at a particular location causing them to rotate as a unit and permitting the closure cap to be twisted off of the container.
  • This invention relates to safety closures for containers and more particularly to safety closures which may not be removed from a container by young children and which require manipulation by a person having adult gripping and reasoning powers.
  • a closure cap is provided for sealing medicine packages and other packages where it is desirable to prevent free access to the contents and to protect young children and others from harm by unauthorized or accidental use of the products.
  • a ratchet coupling means is provided for locking the shells together only when they are turned onto a container and a second connecting means, activated by an appropriately applied pressure grip of the user, is provided to interlock the shells for closure cap removal.
  • an object of the present invention is to provide an improved safety closure.
  • Another object of the invention is to provide a safety closure which is characterized by being easily applied during the initial sealing, which resists removal by children, and which is readily removed by responsible adults.
  • Another object of the invention is to provide an improved safety package comprising an improved safety closure and a container with a conventional closure engaging means.
  • Another object of the invention is to provide an effective safety closure which is relatively easily manufactured and which may be handled by conventional container sealing machinery.
  • FIG. I is a perspective view of a preferred embodiment of a safety package sealed with the safety closure of the invention.
  • FIG. 2 is a perspective view showing the package of FIG. 1 with the closure cap removed.
  • FIG. 3 is a perspective view, partially cut away, illustrating a preferred embodiment of the safety closure cap.
  • FIG. 4 is an exploded perspective view of the closure cap of FIG. 3.
  • FIG. 5 is a vertical sectional view of the closure cap of FIG. 3 applied to the threaded neck of a glass container.
  • FIGS. 6 and 7 are horizontal sectional views of the closure cap of FIG. 3-illustrating a coupling ratchet in its cap applying and in its cap removal actions, respectively.
  • FIG. 8 is a vertical sectional view of the sealed package of FIG. 5 illustrating the removal of the safety closure from the container.
  • FIGS. 99 and 10 are horizontal sectional views illustrating the closure removal locking means in its cap sealing and in its cap removal positions, respectively.
  • FIG. 11 is a perspective view of another embodiment of a package sealed with a safety closure.
  • FIG. 12 is a vertical sectional view of the package of FIG. 11 illustrating the removal of the closure from the container.
  • FIG. 13 is an exploded perspective view of the safety closure of FIG. 12.
  • FIG. 14 is a perspective view of a still further embodiment of a safety package sealed with a safety closure.
  • FIG. 15 is a vertical sectional view of the sealed package of FIG. 14. I
  • FIG. 16 is an exploded perspective view of the safety closure cap of FIG. 15.
  • FIG. 1 illustrates a typical package 1 of the type used for products such as medicines where it is advantageous to have a safety closure.
  • the package 1 includes a glass or plastic container 2 sealed by a safety closure cap 3 in accordance with the present invention.
  • the safety closure cap 3 is removed by the users manipulating the cap 3 in a particular way and which, as will be described below, is a manner not readily performed by small children or by other irresponsible persons.
  • FIG. 2 the cap 3 is shown removed from the container 2 which has a conventional neck portion 4 including a closure engaging means suc as a screw thread 5 similar to that used for engaging regular molded plastic or other closure caps.
  • the preferred embodiment of the safety closure cap 3 in accordance with the present invention includes a cup-shaped outer shell 6 rotatably attached to a smaller nesting inner shell 7. Relative rotation is provided for by the loose fit between the shells.
  • the two shells 6 and 7 are held in their nested position as illustrated in FIGS. 3 and 5 by an inwardly projecting bead 8 on the lower edge of the skirt 9 of the outer cap shell 6.
  • a ratchet 10 is provided for locking the shells 6 and 7 for simultaneous action when the outer shell 6 is turned onto the container 2.
  • the ratchet provides no interlock when the outer shell 6 is turned in the opposite or the cap removing direction.
  • the ratchet 10 thus permits the outer shell 6 to turn freely on the inner shell 7 and the container 2 when the user attempts to remove the closure cap 3 from the container 2 in the ordinary way.
  • a circular cavity 11 is provided in the underside of the outer cap shell 6 cover 12 to receive the ratchet pawl members 13.
  • the generally circular edge of the cavity 11 has a number of ratchet teeth 14 (FIG. 6) formed on it with generally radially oriented pawl engaging surfaces 15 as best seen in FIG. 6.
  • a plurality of the flexible pawl members 13 are integrally formed on the top 16 of the inner shell 7.
  • This unitary construction includes a support section 17 preferably molded as an integral portion of the inner shell top 16 from which the flexible pawl members 13 project.
  • the above described pawl 10 is conveniently formed as a unitary molded member with the inner shell 7 including the skirt l8 and container engaging threads 19 (FIG. 5).
  • An independent interlocking means is provided for releasably connecting the inner and outer cap shells 6 and 7 for cap removal.
  • This means comprises a flexible lower portion of the skirt 9 of the outer cap shell 6 and the adjacent outer surface of the skirt 18 inner cap shell 7.
  • the skirt 9 of the outer cap shell 6 In order to remove the cap 3, the skirt 9 of the outer cap shell 6 must be pressed inwardly using a firm finger pressure in the manner illustrated in FIGS. 1 and 8.
  • This pressure on the cap skirt 3 which only may he satisfactorily applied by a person with mature hands, results in an interlock between the skirt portions 9 and 18 of the two cap shells 6 and 7 and permits the user to turn the inner shell 7 along with the outer shell 6 to turn the cap 3 from the container in the manner illustrated in FIG. 2.
  • This cap removal action is facilitated by the use of a number of spaced slots 22 on the inner surface of the outer shell 6 skirt 9 and a similar number of cooperating lugs or projections 21 positioned on the outer surface of the skirt 18 of the inner cap
  • the slots 22 and lugs 21 will become aligned and engaged in the manner illustrated in FIG. 10 permitting the closure cap 2 to be turned off of the container 3.
  • the thickness of the skirt 9 of the outer cap shell 6 is proportioned so that the necessary skirt deformation required for cap removal may only be obtained by a user having both mature finger size and strength.
  • FIGS. 11 through 13 illustrate another embodiment of the invention.
  • a safety closure cap 30 seals a container 31 and has a similar ratchet coupling 32 and a modified cap removal coupling 33, 34.
  • an inner shell 35 and an outer shell 36 are connected by a connecting bearing 37 and a coupling pin 38.
  • the closure cap 30 and the ratchet 32 operate in the manner described above during cap application to provide for the simultaneous rotation of the inner shell 35 and the outer shell 36.
  • a friction or interlocking action between the cap shell skirts 39 and 40 of the inner shell 35 and the outer shell 36 causes the cap threads 42 to turn on the container threads 43 for cap removal.
  • a knurled or roughened zone 33 is formed on the skirt 40 of the outer shell 36 and a number of spaced gripping projections 34, which may have friction surfaces, are provided on the outer surface of the skirt 39 of the inner shell 35.
  • a sealing gasket 41 is provided within the inner cap shell 35.
  • FIGS. 14 through 16 Another embodiment of the safety closure cap in accordance with the invention is illustrated at 50in FIGS. 14 through 16.
  • the cap 50 has a similar arrangement. of inner and outer shells 51 and 52 with a ratchet means 53 for cap application and with a separate user gripped ring 54 for cap removal.
  • the inner shell 51 and outer shell 52 are connected by a bearing button 61 with the ratchet means 53 including pawl arms 62 on the inner shell 51 and cooperating ratchet teeth 56 (FIG. 15) on the outer shell 52.
  • the interlocking means for cap removal comprises the exposed gripping ring 54 at the bottom of the inner cap shell 51 which exposes a limited gripping surface 55 for cap removal.
  • the surface 55 is gripped by the package user to turn the inner shell 51 on the container to disengage the cap threads 57 and container threads 58.
  • the surface 55 may have a vertical exposed surface of about one-sixteenth or so of an inch on a regular 28 millimeter medicine cap having a cap skirt 59 of about one-half an inch. This relatively small surface may only be gripped sufficiently tightly for cap removal by mature fingers.
  • the cap 50 is removed in the manner illustrated in FIG. 14 by the user gripping the exposed surface 55 of the ring 54 together with the skirt portion 59 on the outer shell 52 above it. Otherwise, the outer cap shell 52 rotates freely on the inner shell 51 and thus on been provided which combines convenience of initial sealing together with a capability of being removed only by mature product users.
  • the cap is, for example,
  • the improved safety closure may be formed of only two principal portions which are eas-,
  • a relatively simple and effective safety closure cap is provided for use on a'variety of containers and particu- I larly for use on medicine packages where the product is potentionally dangerous for use by immature per-.
  • a safety closure cap for sealing a container comprising the combination of an outer shell having a top and a depending skirt, an inner shell having a top and a depending skirt, means for rotatively coupling said shells together in nesting relationship, screw-type container engaging means on said inner shell for engaging cap engaging means on the container, ratchet means on said shells for coupling said shells when turned in a cap applying direction and permitting relative rotation between said shells in a cap unscrewing direction, and pressure operated means at the shell skirts for causing said shells to turn together when unscrewed from the container.
  • said ratchet means comprises a pawl member on the top of one of said shells and cooperating ratchet teeth on a facing surface of the top of the other of said shells.
  • said pawl member comprises a plurality of elongated members extending outwardly from a central support and being formed integrally with said one shell, and said teeth being positioned around the circular outer edge of a cavity in said other shell.
  • said pressure operated means comprises a relatively narrow outwardly directed ring at the lower edge of the skirt of said inner shell having an exposed gripping surface adjacent the lower edge of the skirt of said outer shell.
  • a safety closure cap for sealing a container comprising the combination of an outer shell having a top and a depending skirt, means for rotatively coupling said shells together in nesting relationship, screw-type container engaging means on said inner shell for engaging cap engaging means on the container, ratchet means on said shells for coupling said shells when turned in a cap applying direction and permitting relative rotation between said shells in a cap unscrewing direction comprising a pawl member on the top of one of said shells and cooperating ratchet teeth on a facing surface of the top of the other of said shells, and pressure operated means at the shell skirts for causing said shells to turn together when unscrewed from the container comprising a flexible lower portion of the skirt of said outer shell.
  • said pawl member comprises a plurality of elongated pawls extending outwardly from a central support and being formed integrally with said one shell, and said teeth being positioned around the circular outer edge of a cavity in said other shell.
  • said coupling means comprises bead means extending from one of said shell skirts and engaging the other of said shell skirts.
  • a safety package comprising a container sealed with a closure cap with screw-type cap engaging means at its mouth, said closure cap comprising the combination of an outer shell having a top and a depending skirt, an inner shell having a top and a depending skirt, means for rotatively coupling said shells together in nesting relationship, screw-type container engaging means on said inner shell for engaging the cap engaging means on the container mouth, ratchet means on said shells for coupling said shells when turned in a cap applying direction and permitting relative rotation between said shells in a cap unscrewing direction, and pressure operated means at the shell skirts for causing said shells to turn together when unscrewed from the container.
  • said ratchet means comprises a pawl member on the top of one of said shells and cooperating ratchet teeth on a facing surface of the top of the other of said shells.
  • said pawl member comprises a plurality of elongated members extending outwardly from a central support and being formed integrally with said one shell, and said teeth being positioned around the circular outer edge of a cavity in said other shell.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US515647A 1974-10-17 1974-10-17 Safety closure cap Expired - Lifetime US3917098A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US515647A US3917098A (en) 1974-10-17 1974-10-17 Safety closure cap
CA232,283A CA1045079A (en) 1974-10-17 1975-07-25 Safety closure cap
FR7526522A FR2288040A1 (fr) 1974-10-17 1975-08-28 Bouchon de securite
BE159644A BE832954A (fr) 1974-10-17 1975-09-01 Bouchon de securite
LU73310A LU73310A1 (fi) 1974-10-17 1975-09-02
NL7510471A NL7510471A (nl) 1974-10-17 1975-09-05 Veiligheidssluitdop.
ES75441686A ES441686A1 (es) 1974-10-17 1975-10-10 Perfeccionamientos en tapas de seguridad para recipientes.
JP50122952A JPS5166080A (fi) 1974-10-17 1975-10-14
IT51801/75A IT1048320B (it) 1974-10-17 1975-10-16 Capsula per chiusura di sicurezza
GB42478/75A GB1529707A (en) 1974-10-17 1975-10-16 Safety closure cap
DE19752546598 DE2546598A1 (de) 1974-10-17 1975-10-17 Sicherheitsverschluss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515647A US3917098A (en) 1974-10-17 1974-10-17 Safety closure cap

Publications (1)

Publication Number Publication Date
US3917098A true US3917098A (en) 1975-11-04

Family

ID=24052190

Family Applications (1)

Application Number Title Priority Date Filing Date
US515647A Expired - Lifetime US3917098A (en) 1974-10-17 1974-10-17 Safety closure cap

Country Status (11)

Country Link
US (1) US3917098A (fi)
JP (1) JPS5166080A (fi)
BE (1) BE832954A (fi)
CA (1) CA1045079A (fi)
DE (1) DE2546598A1 (fi)
ES (1) ES441686A1 (fi)
FR (1) FR2288040A1 (fi)
GB (1) GB1529707A (fi)
IT (1) IT1048320B (fi)
LU (1) LU73310A1 (fi)
NL (1) NL7510471A (fi)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989153A (en) * 1976-02-06 1976-11-02 Republic Tool & Manufacturing Corporation Safety cap
US4037747A (en) * 1976-05-21 1977-07-26 Anchor Hocking Corporation Safety closure cap with torque control
US4218210A (en) * 1977-02-10 1980-08-19 Klockner-Humboldt-Deutz Aktiengesellschaft System and method for the heat treatment of fine grained materials
US5687863A (en) * 1996-01-30 1997-11-18 Owens-Illinois Closure Inc. Squeeze and turn child resistant package
US20070017891A1 (en) * 2005-06-06 2007-01-25 Herr James E Composite two-piece tamper-evident closure with a seal-delay-release feature and a method therefor
US20110006030A1 (en) * 2009-07-08 2011-01-13 Mark Branson Child Resistant Closure with a Stacking Position
US20150014269A1 (en) * 2013-07-12 2015-01-15 The Packaging Design Group Senior friendly child resistant closure
WO2016204732A1 (en) * 2015-06-16 2016-12-22 Amcor Limited Child resistant dropper closure
US11155386B2 (en) * 2016-04-22 2021-10-26 Rohto Pharmaceutical Co., Ltd. Container
GB2624016A (en) * 2022-11-04 2024-05-08 Crown Packaging Technology Inc Screw caps for containers
USRE49987E1 (en) 2013-11-22 2024-05-28 Invensas Llc Multiple plated via arrays of different wire heights on a same substrate

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543784Y2 (fi) * 1975-12-24 1980-10-15
DE2638414A1 (de) * 1976-08-26 1978-03-02 Werner Warsawsky Kg Kunststoff Kindersicherer schraubverschluss
DE3211150A1 (de) * 1982-03-26 1983-10-06 Zeller Plastik Koehn Graebner Kindersicherer druck-dreh-verschluss
GB0715983D0 (en) 2007-08-16 2007-09-26 Obrist Closures Switzerland A Saftey closure
CN111661475B (zh) * 2020-06-19 2021-09-28 艾利美塑胶制品有限公司 一种椭圆牙塑料软管组件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027035A (en) * 1958-05-13 1962-03-27 Jacquelyn L Farago Safety closure for containers and the like
US3843006A (en) * 1971-12-25 1974-10-22 Takeda Chemical Industries Ltd Safety bottle cap

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH499734A (de) * 1968-07-19 1970-11-30 Kienzle Apparate Gmbh Klinkengesperre als Einrichtungs- und Überholkupplung
US3638819A (en) * 1970-07-22 1972-02-01 Kerr Glass Mfg Corp Child-safe closure
US3679085A (en) * 1971-04-16 1972-07-25 Sunbeam Plastics Corp Child-proof cap for medicine bottles
US3797688A (en) * 1972-06-14 1974-03-19 Federal Tool & Plastics Safety cap unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027035A (en) * 1958-05-13 1962-03-27 Jacquelyn L Farago Safety closure for containers and the like
US3843006A (en) * 1971-12-25 1974-10-22 Takeda Chemical Industries Ltd Safety bottle cap

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989153A (en) * 1976-02-06 1976-11-02 Republic Tool & Manufacturing Corporation Safety cap
US4037747A (en) * 1976-05-21 1977-07-26 Anchor Hocking Corporation Safety closure cap with torque control
US4218210A (en) * 1977-02-10 1980-08-19 Klockner-Humboldt-Deutz Aktiengesellschaft System and method for the heat treatment of fine grained materials
US4334860A (en) * 1977-02-10 1982-06-15 Klockner-Humboldt-Deutz Ag System and method for the heat treatment of fine grained materials
US5687863A (en) * 1996-01-30 1997-11-18 Owens-Illinois Closure Inc. Squeeze and turn child resistant package
US20070017891A1 (en) * 2005-06-06 2007-01-25 Herr James E Composite two-piece tamper-evident closure with a seal-delay-release feature and a method therefor
US20110006030A1 (en) * 2009-07-08 2011-01-13 Mark Branson Child Resistant Closure with a Stacking Position
US8186526B2 (en) 2009-07-08 2012-05-29 Rexam Healthcare Packaging Inc. Child resistant closure with a stacking position
US20150014269A1 (en) * 2013-07-12 2015-01-15 The Packaging Design Group Senior friendly child resistant closure
USRE49987E1 (en) 2013-11-22 2024-05-28 Invensas Llc Multiple plated via arrays of different wire heights on a same substrate
WO2016204732A1 (en) * 2015-06-16 2016-12-22 Amcor Limited Child resistant dropper closure
US10633151B2 (en) 2015-06-16 2020-04-28 Amcor Rigid Plastics Usa, Llc Child resistant dropper closure
US11155386B2 (en) * 2016-04-22 2021-10-26 Rohto Pharmaceutical Co., Ltd. Container
GB2624016A (en) * 2022-11-04 2024-05-08 Crown Packaging Technology Inc Screw caps for containers

Also Published As

Publication number Publication date
IT1048320B (it) 1980-11-20
FR2288040A1 (fr) 1976-05-14
NL7510471A (nl) 1976-04-21
GB1529707A (en) 1978-10-25
CA1045079A (en) 1978-12-26
JPS5166080A (fi) 1976-06-08
ES441686A1 (es) 1977-04-01
LU73310A1 (fi) 1976-04-13
DE2546598A1 (de) 1976-04-22
BE832954A (fr) 1975-12-31
FR2288040B1 (fi) 1980-09-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ANCHOR HOCKING PACKAGING COMPANY, 1765 WEST FAIR A

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANCHOR HOCKING CORPORATION, A DE CORP.;REEL/FRAME:005581/0330

Effective date: 19901228