US3750817A - Childproof safety closure - Google Patents

Childproof safety closure Download PDF

Info

Publication number
US3750817A
US3750817A US00228217A US3750817DA US3750817A US 3750817 A US3750817 A US 3750817A US 00228217 A US00228217 A US 00228217A US 3750817D A US3750817D A US 3750817DA US 3750817 A US3750817 A US 3750817A
Authority
US
United States
Prior art keywords
closure
gripping
safety
peripheral skirt
releasing
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
US00228217A
Other languages
English (en)
Inventor
J Bozek
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co 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 Continental Can Co Inc filed Critical Continental Can Co Inc
Application granted granted Critical
Publication of US3750817A publication Critical patent/US3750817A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • This disclosure relates to a safety closure associated with a container having a threaded finish, the closure including a closure body having an end panel and a pcripheral skirt with inwardly opening diametrically opposed recesses having surfaces for camming a gripping element against the container finish automatically upon rotation of the closure in an unthreading direction.
  • the gripping element is an inverted generally U-shaped member having ends exposed through apertures in the peripheral skirt which can be gripped to move the member toward the widemost portion of the recesses thereby releasing the gripping element to permit the unthreading of the closure from its associated container finish.
  • the second disadvantage is the difficulty in intentionally opening many typical safety closures, the most common of which is various varities of palm ,and twist types. This has been found to be true when such closures are attempted to be opened by older or uneducated persons, particularly if they are handicapped or, for example, suffer from arthritis. It is for these and other reasons that the Food and Drug Administration lists among its requirements for safety closures not only criteria for precluding the accidental removal of a closure from an associated container, but criteria for the relatively easy removal of safety closures when such removal is intentionally desired.
  • a safety closure which includes an end panel and a depending peripheral skirt adapted for telescopic unification with an associated threaded container finish, means for securing the closure to the container finish by rotational motion in a first direction, means for automatically gripping the container finish by rotational motion in a second direction opposite to the first direction, and means for releasing the gripping means to permit the removal of the closure from the associated container finish upon rotational motion thereof inthe second direction.
  • a further object of this invention is to provide a novel safety closure wherein means are provided for camming the gripping means into gripping engagement with the associated container finish upon rotation of the closure in the second direction.
  • Still another object of this invention is to provide a novel safety closure of the type immediately aforesaid wherein the camming means are a plurality of recess means in the peripheral skirt in each of which is housed one of the gripping means, and each recess means progressively increases in radial width in the second direction.
  • a further object of this invention is to provide a novel safety closure of the type set forth including means spanning the closure end panel joining the gripping means together.
  • a further object of this invention is to provide a novel safety closure as heretofore described wherein each gripping means includes an end. exposed exteriorly of the closure body through aperture means in the peripheral skirt thereof defining said releasing means for manually moving the gripping means in the recess means to a position permitting removal of the closure upon rotation thereof in the second direction.
  • Another object of this invention is to provide a novel safety closure of the type defined heretofore wherein the releasing, gripping and spanning means are of a single piece construction, preferably in the form of a metallic wire or the like.
  • FIG. 3 is a sectional viewtaken generally along line 3-3 of FIG. 2 and illustrates recesses serving as means forcamming the gripping arms against the container finish upon the rotation of the closure in an unthreading direction which is counterclockwise as viewed in this same figure.
  • FIG. 4 is a view identical to FIG. 3 except illustrating the closure slightly rotated counterclockwise whereat the recesses cam the arms to a position grippingly engaging the container finish.
  • FIG. 5 is a sectional view taken generally along line 5-5 of FIG. 2, and illustrates one of a pair of aperture means in the closure peripheral skirt through which project ends of the U-shaped element which may be manually gripped to move the gripping element to the position illustrated in FIGS incident to the intentional rotational removal of the safety closure.
  • a novel safety closure constructed in accordance with'thisinvention is generally designated by the reference numeral 10, and is best illustrated in FIGS. 1 and 2 as being applied-to a threaded finish ll of a conventional container 12 having a neck 13, a body 14, and a bottom wall (not shown).
  • the safety closure 10 is preferably though not necessarily constructed from plastic material and includes a circular end panel 15 and a depending peripheral skirt 16 having diametrically opposite aperture means 17 which function in a manner to be described more fully hereinafter.
  • An internal surface 18 (FIG. 5) of the peripheral skirt 16 includes a thread 20 which is in the form of a groove mainly contoured to the container neck finish 11, such that the closure can be threaded and unthreaded upon the container 12 by appropriate rotation imparted thereto in a conventional manner.
  • the peripheral skirt 16 additionally includes diametrically opposite recess means 21 which extend upwardly from the apertures 17 and span the end panel 15, as is best illustrated in FIG. 5.
  • the recess means 21 each include radial surfaces 22, 23 and a circumferential camming surface 24.
  • the radial width or depth of the surfaces 22 is less than that of the surfaces 23 and, accordingly, the camming surface 24 progressively increases in radial depth or width in a direction from the surfaces 22 toward the surfaces 23 which is the direction of unthreading rotation of the closure which, as viewed in FIGS. 3 and 4, is counterclockwise.
  • This dimensioning of the surfaces 22 through 24 occurs only in those portions of the recess 21 of the peripheral skirt 16, it being noted from FIG. 5 that that portion of the recess 21 spanning the end panel has surfaces 22, 23 of an identical axial dimension.
  • the gripping means 25 is housed in the recess means 21 for automatically gripping the container finish 11 upon rotational motion being imparted to the closure 10 in a counterclockwise direction, as viewed in FIGS. 1, 3 and 4 of the drawings.
  • the gripping means 25 is a generally inverted U-shaped element having a pair of depending arms 26 each housed in the portion of the recess 21 of the peripheral skirt l6 and a spanning portion 27 housed in that portion of the recess 21 spanning the interior of the end panel 15. Terminal end portions 28 of the arms 26 project outwardly of the peripheral skirt 16 through the apertures 17.
  • the gripping element 25 is preferably a cylindrical resilient metallic rod bent to the configuration best illustrated in FIG. 2.
  • the element 25 is necessarily of a resilient construction to not only facilitate the assembly thereof relative to the closure 10, but also to permit the closure 10 to operate as intended in the manner to be described immediately hereinafter.
  • each arm 26 of the element 25 rest against the surfaces 23 and simply ride along the exterior of the threads (unnumbered) of the finish 11 because the axial width or depth of the wall 23 of each recess is sufficient to accommodate or house the arm 26 associated therewith.
  • the diameter of each arm 26 is less than the radial distance between the greatest width of the recess 21 adjacent each wall 23 as measured to the outermost edge of the thread. Accordingly, free rotation is possible to permit the rapid assembly of the closure 10 to the container 12 by conventional capping equipment.
  • each surface 24 has now flexed or forced each arm 26 into gripping engagement with the thread (unnumbered) of the container finish 11 thereby cammingly gripping the threaded finish and precluding the removal of the closure. In this manner apart from knowledgable control which is required for intentionally opening the closure, the contents remain inaccessible and imminent danger can be thus precluded.
  • a safety closure comprising a closure body defined by an end panel and a peripheral skirt, means for securing said closure to a container finish by rotational motion in a first direction, means for automatically gripping a container finish by rotational motion in a second direction opposite to said first direction, and means for releasing said gripping means to permit the removal of the closure from an associated container finish upon rotational motion thereof in said second direction.
  • a safety closure comprising a closure body defined by an end panel and a peripheral skirt, means for securing said closure to a container finish by rotational motion in a first direction, means for automatically gripping a container finish by rotational motion in a second direction opposite to said first direction, means for releasing said gripping means to permit the removal of the closure from an associated container finish upon rotational motion thereof in said second direction, means for camming said gripping means into gripping engagement with an associated container finish upon rotation of the closure in said second direction, said camming means are a plurality of recess means in said peripheral skirt in each of which is housed one of said gripping means, and each recess means progressively increased in radial width in said second direction.
  • the safety closure as defined in claim 12 including means spanning said end panel joining said gripping means together.
  • each gripping means includes one of said releasing means, and each releasing means is exposed exteriorly of said closure body.
  • each gripping means includes one of said releasing means, and each releasing means is exposed exteriorly of said closure body through aperture means in said peripheral skirt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US00228217A 1972-02-22 1972-02-22 Childproof safety closure Expired - Lifetime US3750817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22821772A 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
US3750817A true US3750817A (en) 1973-08-07

Family

ID=22856286

Family Applications (1)

Application Number Title Priority Date Filing Date
US00228217A Expired - Lifetime US3750817A (en) 1972-02-22 1972-02-22 Childproof safety closure

Country Status (5)

Country Link
US (1) US3750817A (forum.php)
JP (1) JPS4897683A (forum.php)
CA (1) CA1014104A (forum.php)
FR (1) FR2172983B1 (forum.php)
ZA (1) ZA727196B (forum.php)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995765A (en) * 1974-12-18 1976-12-07 Vca Corporation Safety closure for containers
US5027954A (en) * 1990-03-12 1991-07-02 Hickerson Frederick R Child proof container and safety closure
US5706962A (en) * 1996-02-02 1998-01-13 Poly-Seal Corporation Thumb tab child resistant closure
US5769252A (en) * 1996-12-05 1998-06-23 Volpe And Koenig, P.C. Container closure which converts from a child resistant to a non-child resistant configuration

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620398A (en) * 1968-07-29 1971-11-16 Charles Martinus Bech Andersen Safety closure
US3656646A (en) * 1970-06-24 1972-04-18 Clarence R Taylor Safety closure for a container

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK125583B (da) * 1969-01-31 1973-03-12 H Sonne Beholder og skruedæksel med lås, især til opbevaring af medicin.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620398A (en) * 1968-07-29 1971-11-16 Charles Martinus Bech Andersen Safety closure
US3656646A (en) * 1970-06-24 1972-04-18 Clarence R Taylor Safety closure for a container

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995765A (en) * 1974-12-18 1976-12-07 Vca Corporation Safety closure for containers
US5027954A (en) * 1990-03-12 1991-07-02 Hickerson Frederick R Child proof container and safety closure
US5706962A (en) * 1996-02-02 1998-01-13 Poly-Seal Corporation Thumb tab child resistant closure
US5769252A (en) * 1996-12-05 1998-06-23 Volpe And Koenig, P.C. Container closure which converts from a child resistant to a non-child resistant configuration
US5873475A (en) * 1996-12-05 1999-02-23 Volpe And Koenig, P.C. Container closure which converts from a child resistant to a non-child resistant configuration

Also Published As

Publication number Publication date
FR2172983B1 (forum.php) 1978-12-01
JPS4897683A (forum.php) 1973-12-12
ZA727196B (en) 1974-05-29
CA1014104A (en) 1977-07-19
FR2172983A1 (forum.php) 1973-10-05

Similar Documents

Publication Publication Date Title
US3865267A (en) Child-proof and pharmacist-assisting reversible closure for containers
US5370251A (en) Child-resistant closure
US4540098A (en) Tamper indicating child resistant closure
US3435975A (en) Safety closure
US4500005A (en) Tamper-evident cap assembly for a container
US3422978A (en) Self-locking bottle cap
PT85487A (pt) Tampa de enroscar de seguranca para criancas
JPS58193262A (ja) いたずら防止型容器
US3734332A (en) Safety closure
US3954200A (en) Molded container
US3907145A (en) Safety container including snap-on cap
US3403803A (en) Safety bottle closure
US3622027A (en) Safety bottle closure
US4410097A (en) Child resistant package
US3809272A (en) Safety bottle closure
US3630403A (en) Safety container closure
US3822805A (en) Safety closure for containers
US3917098A (en) Safety closure cap
US5058754A (en) Child resistant container and safety closure
US3857508A (en) Safety closure and container
US3468444A (en) Safety closure for containers
US3572532A (en) Safety closure
US3750817A (en) Childproof safety closure
US3044648A (en) Safety closure for bottles and the like
US3744654A (en) Safety closure device