US3924770A - Child proof closure - Google Patents

Child proof closure Download PDF

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Publication number
US3924770A
US3924770A US548907A US54890775A US3924770A US 3924770 A US3924770 A US 3924770A US 548907 A US548907 A US 548907A US 54890775 A US54890775 A US 54890775A US 3924770 A US3924770 A US 3924770A
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US
United States
Prior art keywords
cap
teeth
drive member
sets
turning
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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
Application number
US548907A
Inventor
Vincent Scuderi
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.)
Van Blarcom Closures Inc
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Van Blarcom Closures 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 Van Blarcom Closures Inc filed Critical Van Blarcom Closures Inc
Priority to US548907A priority Critical patent/US3924770A/en
Priority to US05/584,735 priority patent/US3946890A/en
Priority to CA235,078A priority patent/CA1027518A/en
Priority to DE19752542921 priority patent/DE2542921A1/en
Priority to IT27868/75A priority patent/IT1043048B/en
Priority to JP12038675A priority patent/JPS5614537B2/ja
Priority to GB42056/75A priority patent/GB1479070A/en
Application granted granted Critical
Publication of US3924770A publication Critical patent/US3924770A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a child proof closure for containers having a threaded neck A screw type cap has a first set of teeth mounted on its side the teeth being set at an angle to the axis of the cap.
  • a drive member is loosely mounted on the cap for limited axial motion.
  • a second set of teeth is mounted on said drive member, the teeth being angled in the same direction as the first set of teeth.
  • FIG 3 CHILD PROOF CLOSURE This invention relates to child proof closures for containers containing medicines, poisons and corrosive substances or liquids.
  • a principal object of the invention is to provide new and improved means for child proof closures for containers.
  • Another object of the invention is to provide new and improved means for child proof closures for containers of the type having a threaded neck.
  • Another object of the invention is to provide new and improved screw type closures for containers such as bottles which require simultaneous pressing and turning in order to unscrew the cap.
  • Another object of the invention is to provide a new and improved screw type cap having a drive member loosely mounted on the cap wherein both the cap and the drive member have teeth which must be engaged by firmly pressing the drive member onto the cap and simultaneously turning in order to unscrew the cap.
  • Another object of the invention is to provide new and improved child proof closure means for containers having a threaded neck comprising, a screw type cap, a first set of teeth on the side of said cap, said teeth being set at an angle to the axis of said cap, a drive member loosely mounted on said cap for limited axial motion, a second set of teeth on said drive member, said teeth being angled in the same direction as said first set of teeth, whereby when said drive member is turned in the direction to remove the cap, the interaction of said teeth lifts the drive member relative to the cap and the first and second sets of teeth disengage so that the cap cannot be removed solely by turning.
  • FIG. 1 is a side view of an embodiment of the invention partially in section, in free position.
  • FIG. 2 is a side view of an embodiment of the invention partially in section, in engaged position.
  • FIG. 3 is a side view of the drive member of FIG. 1.
  • FIG. 4 is a top view of the cap.
  • FIG. 5 is a top view of the drive member.
  • the cap 1 is a screw type cap which is adapted to be screwed onto a container such as medicine bottles, of the type which has a threaded neck.
  • the cap is conventional except for two features. First the cap has a plurality of teeth 2, which are mounted on the upper side of the cap, and secondly, the cap has an annular groove 4, one purpose of which is to loosely retain the drive member 5, on cap 1.
  • the teeth 2 have an angle to the axis of the cap in the neighborhood of 45 to 60.
  • the drive member 5 has an inwardly turned lower lip 6, which is adapted to fit into the groove 4, so as to hold the drive member loosely on the cap.
  • the drive member has a circle of teeth 7, on the interior of its upper surface which are adapted to mate with the teeth 2, of the cap 1, when the drive member is pressed on the cap. 1
  • the teeth 7, have an angle to the axis equal to that of the angle of the teeth 2.
  • the direction of the angle is chosen so that the lower edges of the teeth lead in the direction that the cap is turned to apply it.
  • the cap has a third set of teeth 10, which form a circle on top of the cap.
  • the drive member has a fourth set of teeth 11, which form a similar circle on the interior of the top of the drive member.
  • the drive member When it is desired to remove the cap, the drive member is pressed down onto the cap and rotated counterclockwise.
  • the pressing will cause the first and second sets of teeth 2 and 7, to remain in contact and will also cause contact between the third and fourth sets of teeth, 10 and 11, so that by simultaneously pressing and turning counter-clockwise the cap can be removed.
  • the teeth are not formed with square cross-sections but are of a curved cross-section so that a firm pressing is required to keep the teeth in contact for the purpose of removing the cap.
  • the drive member is mounted on the cap and the dimensions are such that the drive member is retained loosely on the cap so that it can be easily turned without turning the caps, as shown in FIG. 1.
  • the teeth are pointed or beveled with rounded edges so that a firm pressure is required to hold them into engagement when unscrewing the cap.
  • the cap and drive member may be made of metal or plastic. If the parts are made of metal, the teeth may be pressed in. If the parts are made of plastic, the teeth may be molded. After the drive member is assembled onto the cap, the lower lip of the drive member is turned inwardly to rest within the groove in the cap to retain the drive member loosely on the cap. When the drive member 2, is pressed it slides down on the cap which enhances the gripping of the two sets of teeth 2 and 7.
  • a child proof closure for containers having a threaded neck comprising,

Abstract

A child proof closure for containers having a threaded neck. A screw type cap has a first set of teeth mounted on its side the teeth being set at an angle to the axis of the cap. A drive member is loosely mounted on the cap for limited axial motion. A second set of teeth is mounted on said drive member, the teeth being angled in the same direction as the first set of teeth. When said drive member is turned in the direction to remove the cap, the interaction of said teeth lifts the drive member relative to the cap and the first and second sets of teeth disengage so that the cap cannot be removed solely by turning.

Description

0 United States Patent [191 [111 3,924,770
Scuderi [4 Dec. 9, 1975 CHILD PROOF CLOSURE [75] Inventor: Vincent Scuderi, East Williston, Primary ExamMerTQeOrge Hall Attorney, Agent, or Flrm--James P. Malone [73] Assignee: Van Blarcom Closures Inc., [57] ABSTRACT Brooklyn, NY.
[22] Filed: Feb. 11, 1975 [21] Appl. No.: 548,907
[52] US. Cl. 215/220 [51] Int. Cl. B65D 55/02 [58] Field of Search 215/9, 219, 220
[56] References Cited UNITED STATES PATENTS 3,690,495 9/1972 Turner 215/9 3,809,274 5/1974 Scuderi 215/9 A child proof closure for containers having a threaded neck. A screw type cap has a first set of teeth mounted on its side the teeth being set at an angle to the axis of the cap. A drive member is loosely mounted on the cap for limited axial motion. A second set of teeth is mounted on said drive member, the teeth being angled in the same direction as the first set of teeth. When said drive member is turned in the direction to remove the cap, the interaction of said teeth lifts the drive member relative to the cap and the first and second sets of teeth disengage so that the cap cannot be removed solely by turning.
3 Claims, 5 Drawing Figures US. Patent Dec. 9, 1975 3,924,770
WiM/i/li/i/i/i/WMF FIG 3 CHILD PROOF CLOSURE This invention relates to child proof closures for containers containing medicines, poisons and corrosive substances or liquids.
There is a need for a closure for medicine bottles which cannot easily be opened by a child. There are a number of cases where small children have opened medicine or poison bottles and have swallowed the contents causing severe personal injury and death in some cases.
Accordingly, a principal object of the invention is to provide new and improved means for child proof closures for containers.
Another object of the invention is to provide new and improved means for child proof closures for containers of the type having a threaded neck.
Another object of the invention is to provide new and improved screw type closures for containers such as bottles which require simultaneous pressing and turning in order to unscrew the cap.
Another object of the invention is to provide a new and improved screw type cap having a drive member loosely mounted on the cap wherein both the cap and the drive member have teeth which must be engaged by firmly pressing the drive member onto the cap and simultaneously turning in order to unscrew the cap.
Another object of the invention is to provide new and improved child proof closure means for containers having a threaded neck comprising, a screw type cap, a first set of teeth on the side of said cap, said teeth being set at an angle to the axis of said cap, a drive member loosely mounted on said cap for limited axial motion, a second set of teeth on said drive member, said teeth being angled in the same direction as said first set of teeth, whereby when said drive member is turned in the direction to remove the cap, the interaction of said teeth lifts the drive member relative to the cap and the first and second sets of teeth disengage so that the cap cannot be removed solely by turning.
These and other objects of the invention will be a parent from the following specification and drawings of which:
FIG. 1 is a side view of an embodiment of the invention partially in section, in free position.
FIG. 2 is a side view of an embodiment of the invention partially in section, in engaged position.
FIG. 3 is a side view of the drive member of FIG. 1.
FIG. 4 is a top view of the cap.
FIG. 5 is a top view of the drive member.
Referring to the Figures, the cap 1 is a screw type cap which is adapted to be screwed onto a container such as medicine bottles, of the type which has a threaded neck. The cap is conventional except for two features. First the cap has a plurality of teeth 2, which are mounted on the upper side of the cap, and secondly, the cap has an annular groove 4, one purpose of which is to loosely retain the drive member 5, on cap 1. The teeth 2 have an angle to the axis of the cap in the neighborhood of 45 to 60.
The drive member 5, has an inwardly turned lower lip 6, which is adapted to fit into the groove 4, so as to hold the drive member loosely on the cap. The drive member has a circle of teeth 7, on the interior of its upper surface which are adapted to mate with the teeth 2, of the cap 1, when the drive member is pressed on the cap. 1
The teeth 7, have an angle to the axis equal to that of the angle of the teeth 2. The direction of the angle is chosen so that the lower edges of the teeth lead in the direction that the cap is turned to apply it. When the drive member is turned clockwise to apply the cap, then the first and second sets of teeth, 2 and 7, lock together.
On the other hand, when the drive member is turned counter-clockwise, in the direction to remove the cap without pressing, the interaction of the teeth causes the drive member to lift away from the cap so that the teeth are not engaged but the drive member teeth slip over the cap teeth. There is sufficient play in the mounting of the drive member to accommodate this axial motion of the drive member.
The cap has a third set of teeth 10, which form a circle on top of the cap. The drive member has a fourth set of teeth 11, which form a similar circle on the interior of the top of the drive member.
When it is desired to remove the cap, the drive member is pressed down onto the cap and rotated counterclockwise. The pressing will cause the first and second sets of teeth 2 and 7, to remain in contact and will also cause contact between the third and fourth sets of teeth, 10 and 11, so that by simultaneously pressing and turning counter-clockwise the cap can be removed. The teeth are not formed with square cross-sections but are of a curved cross-section so that a firm pressing is required to keep the teeth in contact for the purpose of removing the cap.
The drive member is mounted on the cap and the dimensions are such that the drive member is retained loosely on the cap so that it can be easily turned without turning the caps, as shown in FIG. 1.
Therefore, a child merely turning the drive member will not unscrew the cap. The teeth are pointed or beveled with rounded edges so that a firm pressure is required to hold them into engagement when unscrewing the cap.
It is unlikely that a small child would be able to appreciate that it is necessary to press and turn simultaneously to unscrew the cap. Furthermore, since the teeth are not square, a small child would not have sufficient strength to hold the teeth in engagement while unscrewing the cap.
The cap and drive member may be made of metal or plastic. If the parts are made of metal, the teeth may be pressed in. If the parts are made of plastic, the teeth may be molded. After the drive member is assembled onto the cap, the lower lip of the drive member is turned inwardly to rest within the groove in the cap to retain the drive member loosely on the cap. When the drive member 2, is pressed it slides down on the cap which enhances the gripping of the two sets of teeth 2 and 7.
I claim:
1. A child proof closure for containers having a threaded neck comprising,
a screw type cap,
a first set of teeth on the side of said cap, said teeth being set at an angle to the axis of said cap, I
a drive member loosely mounted on said cap for limited axial motion,
a second set of teeth on said drive member, said teeth being angled in the same direction as said first set of teeth,
whereby when said drive member is turned in the direction to remove the cap, the interaction of said onto said cap, said third and fourth sets of teeth engage.
3. Apparatus as in claim 1, wherein said first and second sets of teeth are set at an angle to the axis of said cap so that the leading lower edges of the teeth are in the direction of turning said cap to apply the cap to the container.

Claims (3)

1. A child proof closure for containers having a threaded neck comprising, a screw type cap, a first set of teeth on the side of said cap, said teeth being set at an angle to the axis of said cap, a drive member loosely mounted on said cap for limited axial motion, a second set of teeth on said drive member, said teeth being angled in the same direction as said first set of teeth, whereby when said drive member is turned in the direction to remove the cap, the interaction of said teeth lifts the drive member relative to the cap and the first and second sets of teeth disengage so that the cap cannot be removed solely by turning.
2. Apparatus as in claim 1 wherein said cap has a third circular set of teeth on its top surface and said drive member has a fourth circular set of teeth on its top surface whereby when said drive member is pressed onto said cap, said third and fourth sets of teeth engage.
3. Apparatus as in claim 1, wherein said first and second sets of teeth are set aT an angle to the axis of said cap so that the leading lower edges of the teeth are in the direction of turning said cap to apply the cap to the container.
US548907A 1975-02-11 1975-02-11 Child proof closure Expired - Lifetime US3924770A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US548907A US3924770A (en) 1975-02-11 1975-02-11 Child proof closure
US05/584,735 US3946890A (en) 1975-02-11 1975-06-09 Child proof closure
CA235,078A CA1027518A (en) 1975-02-11 1975-09-09 Child proof closure
DE19752542921 DE2542921A1 (en) 1975-02-11 1975-09-26 CHILD RESISTANT CLOSURE FOR BOTTLES
IT27868/75A IT1043048B (en) 1975-02-11 1975-10-02 NON-TAMPERABLE CLOSURE
JP12038675A JPS5614537B2 (en) 1975-02-11 1975-10-07
GB42056/75A GB1479070A (en) 1975-02-11 1975-10-14 Screw closure resistant to opening by a child

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548907A US3924770A (en) 1975-02-11 1975-02-11 Child proof closure

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/584,735 Continuation-In-Part US3946890A (en) 1975-02-11 1975-06-09 Child proof closure

Publications (1)

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US3924770A true US3924770A (en) 1975-12-09

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ID=24190877

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Application Number Title Priority Date Filing Date
US548907A Expired - Lifetime US3924770A (en) 1975-02-11 1975-02-11 Child proof closure

Country Status (6)

Country Link
US (1) US3924770A (en)
JP (1) JPS5614537B2 (en)
CA (1) CA1027518A (en)
DE (1) DE2542921A1 (en)
GB (1) GB1479070A (en)
IT (1) IT1043048B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241840A (en) * 1979-11-01 1980-12-30 Aluminum Company Of America Safety closure assembly with a sheet metal overcap
US20050150857A1 (en) * 2004-01-13 2005-07-14 Brozell Brian J. Child-resistant closure having a non-child-resistant mode of operation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690495A (en) * 1970-09-28 1972-09-12 Lloyd S Turner Security closure for a screw type container
US3809274A (en) * 1972-07-19 1974-05-07 Blarcom Closures Child proof closure for containers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776407A (en) * 1972-02-04 1973-12-04 Kerr Glass Mfg Corp Closure
US3853236A (en) * 1973-12-06 1974-12-10 Federal Tool & Plastics Safety closure unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690495A (en) * 1970-09-28 1972-09-12 Lloyd S Turner Security closure for a screw type container
US3809274A (en) * 1972-07-19 1974-05-07 Blarcom Closures Child proof closure for containers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241840A (en) * 1979-11-01 1980-12-30 Aluminum Company Of America Safety closure assembly with a sheet metal overcap
FR2468516A1 (en) * 1979-11-01 1981-05-08 Aluminum Co Of America SAFETY CLOSURE DEVICE WITH UPPER METAL COVER
US20050150857A1 (en) * 2004-01-13 2005-07-14 Brozell Brian J. Child-resistant closure having a non-child-resistant mode of operation
US20060108313A1 (en) * 2004-01-13 2006-05-25 Brozell Brian J Child-resistant closure having a non-child-resistant mode of operation
US7401707B2 (en) 2004-01-13 2008-07-22 Rexam Prescription Products Inc. Child-resistant closure having a non-child-resistant mode of operation

Also Published As

Publication number Publication date
DE2542921A1 (en) 1976-08-19
CA1027518A (en) 1978-03-07
IT1043048B (en) 1980-02-20
JPS5614537B2 (en) 1981-04-04
GB1479070A (en) 1977-07-06
JPS5194379A (en) 1976-08-18

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