Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3884379 A
Publication typeGrant
Publication dateMay 20, 1975
Filing dateApr 16, 1973
Priority dateDec 11, 1972
Also published asCA1005390A1, DE2359545A1
Publication numberUS 3884379 A, US 3884379A, US-A-3884379, US3884379 A, US3884379A
InventorsLanden William James
Original AssigneeEyelet Specialty Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bottle safety closure
US 3884379 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 1191 Landen May 20, 1975 l l BOTTLE SAFETY CLOSURE Primary Examiner-George T. Hall h [75] Inventor g gr James Landen Ches Ire Attorney, Agent, or Ftrm-HOpgOOd, Callmafde, Kalil,

Blaustein & Lieberman [73] Assignee: Eyelet Specialty Co., Incorporated,

Wallingford, Conn. [57] ABSTRACT [22] Filed: Apr. 16, 1973 The invention contemplates a child-resistant safety cap and bottle-neck combination wherein the cap has [2]] Appl 351266 a threaded engagement to the neck but wherein a Related US. Application Data ratcheting one-way engagement relation develops be- [63] Continuationin-part of Sert No. 313,801, Dec. ll tween the bottle and the neck m approach to the 1972, abandone closed relation of the parts. An axially resilient locking projection on the neck, located axially between the 52] U.S. (:1 215/221; 215/216 threads and base of the neck, has an escaping relation 51 Int C 365 55 02; 3 5 35/5 1j 1/00 with teeth on the skirt of the neck for the cap thread- [58] Field of Search 215/9, 216, 221 on direction, and a locking relation for the thread-off direction. Finger-actuated axial depression of the pro- 5 References Cited jection is necessary, in order to release the locked en- UNITED STATES PATENTS gagement and thus to permit the cap to be unth (1 d. 3,472409 10/1969 Slack et al. 215/221 M e 3,744,655 7/1973 Nixdortaf, Jr 1 1 215/216 3 l lms, 5 Drawing Figures BOTTLE SAFETY CLOSURE This application is a continuation-impart of my copending application, Ser. No. 3I3,80l, filed Dec. 11, 1972, now abandoned.

This invention relates to bottles adapted to contain hazardous substances, and more particularly relates to safety closures for such bottles which render them child-resistant, i.e., resistant to tampering by children.

It is an object of this invention to provide a new and improved safety cap for a bottle, particularly of the variety having rotary engagement, as by threads.

Another object of the invention is to provide a new and improved safety cap for a bottle which is economical to manufacture and readily lends itself to automatic production line facilities for filling and capping a bottle.

A further object of the invention is to provide a new and improved safety cap and bottle combination in which the cap is readily locked onto the bottle but may be unlocked therefrom by a very simple manipulation of a locking member.

A still further object is to meet the above objects with a construction of inherent low cost, involving minimum alteration of present constructions.

Other objects and various further features of novelty and invention will be pointed out or will occur to those skilled in the art from a reading of the following specification in conjunction with the accompanying drawings. In said drawings, which show, for illustrative purposes only, a preferred form of the invention:

FIG. 1 is a perspective view of a closed bottle-andcap engagement of the invention;

FIG. 2 is an exploded perspective view of the parts of FIG. 1, the cap being tilted up for a better showing of detail;

FIG. 3 is a top plan view of the locking member of FIG. 1;

FIG. 4 is a view in perspective of the part of FIG. 3; and

FIG. 5 is a view similar to FIG. 3 to illustrate a modification.

The invention is shown in application to a container bottle having an integral threaded neck 11 and selectively opened and closed by a cap 12 having a threaded bore 13. The bottle may be of any suitable material such as glass, metal or plastic, but is shown in the style of a blow-molded plastic bottle. Cap 12 may be of any suitable construction, being typically an injection-molded plastic part, for the ,case of a plastic bottle 10.

In accordance with the invention, the bottle neck nonrotatably carries axially resilient lockingprojection means in the region between the threads 14 and the base end 15 of the neck. In the case of a plastic bottle 11, such projection means may be formed integrally with the bottle 11, but in the form shown the locking-projection means is a separate ring-shaped part 16, which may be injection-molded of suitable plastic.

Ring 16 is intended to be a permanently assembled non-rotatable part of the neck 11 beneath the threaded region thereof. It thus may be force-fitted, bonded, or merely keyed to neck 11. As shown, key grooves 17 in the bore of ring 16 have non-rotatable engagement with a nib or ribs 18 formed integrally with neck 11, ring 16 being axially retained upon seating abutment with the base end 15 of the neck. One or more resilient locking devices 19-19 project radially from the body of ring 16 and are each provided with a ramp tooth 20, for ratcheting engagement with a series of teeth 21 at the lower (open) end of the skirt of cap 12; projections 19-19 must be axially downwardly deflectable from the at-rest positions shown in FIGS. 2 and 4, and so they are axially spaced from the neck base 15, as shown. Preferably, the radial projections 1919 also extend over an arc a, about the neck axis, the same being provided by a slit 22 of extent a, between projections 19-19 and the adjacent body of ring 16. As shown, theeffective angular extent a, over which projections 19-19 are integrally united to the body of ring 16 is at least substantially the angular extent 04,, and the radial width AR of projections 19-19 is substantially less than the length. of the slits 22. Also, the outer radial limit of projections 19-19 exceeds that of the open end of the cap skirt, to an extent enabling finger-actuation. The ramp directions at 20 and 21 are selected to provide ratcheting escape for thread-on advance of cap and neck engagement, upon approach to the full threaded relation; in the thread-off direction of rotation, the teeth 20-21 are locked by engaged flat surfaces each of which extends radially in a plane through the neck axis. Preferably, tooth height (i.e., axial extent) in relation to the pitch or threaded advance of threads 14 is such that ratcheting action occurs only after considerable threaded engagement and in close approach to the home or fully closed position of the cap on the neck; at the fully closed position, the resilient action of the axially deflected teeth 20 is sufficient to assure a fully locked engagement of teeth 20-21, as will be understood.

In use, the cap 12 is set in place and threaded-on to neck 1 1, as for one or more turns, prior to any escaping engagement of teeth 20-21. At the fully closed position, one tooth period (a FIG. 2) is the most that cap 12 can be unthreaded before encountering the locked condition at 20-21. To remove the cap, the one or more projections 19 (19) must be axially depressed to effect disengagement at 20-21, whereupon the cap may be threadedoff in the usual manner.

In the modification of FIG. 5, parts corresponding to those in FIG. 3 are given the same reference numbers; the plural projections and their ramp teeth are different and are therefore identified 19a-19a and 20a-2- Oa, respectively. The primary point of difference is that the angular locations or spacings between these projections and their teeth (20a-20a) are so selected in reference to the number of ratchet teeth 21 in the skirt of cap 12 that ratchet action interlaces, as between the several individual teeth (20a20a) in the course of achieving a secured position of cap 12 on the bottle 10. Thus, for the interlaced two-tooth arrangement of FIG. 5, the effective angular position of tooth 20a with respect to tooth 20a should be such that a locked engagement of tooth 20a with one of the teeth 21 will mean an offset, or less-than-locked, engagement of tooth 2001' with its next-adjacent one of teeth 21; stated in other words, for a two-tooth arrangement, the effective separation of teeth 20a -20a is preferably an odd-integer multiple of one half of the effective pitch spacing of teeth 21. Stated more generically, for a ring 16 having N teeth (as at 20a, 20a, etc.), coacting with a cap 12 having n equally spaced teeth 21, the tooth spacing of adjacent teeth on ring 16 is preferably a multiple X of the pitch angle (04;, 21r/n), divided by N,

where X is an integer other than N (or a multiple of N). Thus, for a 24-tooth series at 21, an effective angular offset a, exists between tooth 20a and an adjacent one of the teeth 21, for the condition that the other tooth 20a is fully engaged to a tooth 21, the said offset being preferably 7.5 [(21'r/24X21r radian) in the case of FIG. 5. In such a relation, the incremental advance between successive ratchet-held positions of the cap and bottle neck is one half that obtainable for FIG. 3, wherein both teeth 20 were positioned for simultaneous engagement with spaced teeth in the cap series 21; thus, the arrangement of FIG. 5 provides the advantage of more reliably securing a liquid-sealing closure by cap 12, by more finely dividing the number of available ratcheting positions, for a given number of teeth 21.

The invention will be seen to provide a construction which meets all stated objects, and it will be understood that modifications may be made without departure from the scope of the invention.

What is claimed is:

1. In combination, a bottle including an externally threaded neck, an internally threaded cap having a skirt removably engageable to the threaded neck, a plurality of axially resilient locking projections nonrotatably carried on the outside of said neck beneath the threaded region and spaced from the base of said neck, said projections being in radial overlap with said skirt and being at angularly spaced locations about the axis of said neck, the open end of said skirt having a circumferentially extending downwardly directed series of teeth in one-way engageable relation with said locking projections near the closed relation of said cap and neck, the direction of one-way co-action being that of escapement in the thread-on direction and engagement in the thread-off direction, and said projections extending sufficiently radially outward of said cap in the closed position to enable finger-actuated disengagement of said locking projections from said teeth, whereby the cap may then be unthreaded, the effective separation of said locking projections being substantially a multiple X of the pitch angle characterizing said series of teeth, divided by the number of said projections. where X is an integer other than said number or a multiple thereof.

2. In combination. a bottle including an externally threaded neck, an internally threaded cap having a skirt removably engageable to the threaded neck, a locking ring non-rotatably carried by the outside of said neck and beneath the threaded region thereof. said ring including two like integral angularly spaced and axially resilient locking projections in radial overlap with said skirt and spaced from the base of said neck. the open end of said skirt having a circumferentially extending downwardly directed series of teeth in one-way engageable relation with said locking projections near the closed relation of said cap and neck, the direction of one-way co-action being that of escapement in the thread-on direction and engagement in the thread-off direction, the effective separation of said locking projections being substantially an odd integer multiple of one half the pitch angle characterizing said series of teeth. and said projections extending sufficiently radially outward of said cap in the closed position to enable finger-actuated disengagement of said locking projection from said teeth. whereby the cap may then be unthreaded.

3. The combination of claim 2, wherein the number of skirt teeth is even, and said projections are angularly offset from diametric opposition. to the extent of one half said pitch angle.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3472409 *Dec 21, 1967Oct 14, 1969Beach FairportSafety closure for containers
US3744655 *Jul 8, 1971Jul 10, 1973Anchor Hocking CorpSafety closure for containers
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3958709 *Nov 11, 1974May 25, 1976Anchor Hocking CorporationContainer safety closure system
US4028863 *Feb 25, 1976Jun 14, 1977Anchor Hocking CorporationMethod of manufacturing container safety closure system
US4067621 *Jan 20, 1976Jan 10, 1978W. R. Grace & Co.Plastic hub cap
US4069942 *Jul 12, 1976Jan 24, 1978Eyelet Specialty Co., Inc.Child-resistant pill dispenser
US4241856 *Feb 16, 1979Dec 30, 1980Weatherchem CorporationChild-resistant fluid top
US4948002 *Dec 29, 1988Aug 14, 1990The Procter & Gamble CompanyPackage exhibiting improved child resistance without significantly impeding access by adults
US5038454 *Mar 26, 1990Aug 13, 1991The Procter & Gamble CompanyInjection blow molding process for forming a package exhibiting improved child resistance
US5147053 *Sep 30, 1991Sep 15, 1992Daredi Products Close CorporationContainer with child proof closure
US5186344 *Oct 2, 1990Feb 16, 1993The Procter & Gamble CompanyContainer and closure having means for producing an audible signal when a seal has been established
US5230433 *Jan 28, 1992Jul 27, 1993The Procter & Gamble CompanyAdult friendly child-resistant attachment for containers used to store potentially dangerous materials
US5238130 *Apr 6, 1992Aug 24, 19939866143 Ontario Inc.Closure for a container
US5310074 *Jun 25, 1993May 10, 1994Berry Plastics CorporationCanister with lid-release control mechanism
US5383564 *Jan 21, 1993Jan 24, 1995The Procter & Gamble CompanyAdult friendly child-resistant attachment for containers used to store potentially dangerous materials
US5394999 *May 6, 1993Mar 7, 1995Owens-Illinois Closure Inc.Child resistant package
US5413233 *Aug 30, 1994May 9, 1995The Procter & Gamble CompanyChild resistant bottle closure
US5544768 *Oct 12, 1995Aug 13, 1996Comar Inc.Child resistant closure
US5562218 *Sep 7, 1995Oct 8, 1996The Procter & Gamble CompanyAdult friendly child-resistant attachment for containers used to store potentially dangerous materials
US5564580 *Jun 7, 1995Oct 15, 1996The Procter & Gamble CompanyAdult friendly child-resistant attachment for containers used to store potentially dangerous materials
US5586671 *Feb 23, 1996Dec 24, 1996The Procter & Gamble CompanyChild resistant package
US5664693 *May 28, 1996Sep 9, 1997Owens-Illinois Closure Inc.Child resistant package
US5711442 *Feb 29, 1996Jan 27, 1998Owens-Illinois Prescription Products Inc.Child resistant package
US5899348 *Dec 2, 1997May 4, 1999Owens-Illinois Prescription Products Inc.Child resistant package
US6039195 *Dec 11, 1998Mar 21, 2000Owens-Brockway Prescription Products Inc.Child resistant package
US6053343 *May 14, 1998Apr 25, 2000Kerr Group, Inc.Child-resistant closure and container with tamper indication
US6076689 *Feb 5, 1998Jun 20, 2000Kerr Group, Inc.Child resistant and adult friendly container and closure device
US6315165Jun 29, 1999Nov 13, 2001Loctite (R&D) LimitedDevice for expressing substances from a deformable tube
US6327770Dec 16, 1999Dec 11, 2001Owens-Illinois Prescription Products Inc.Child resistant package
US6508373 *Oct 20, 2000Jan 21, 2003Owens-Illinois Closure Inc.Child resistant container and closure, package and method of assembly having a locking tab on the container and a cam stop lug on the closure
US7000789 *Feb 3, 2003Feb 21, 2006Tri State Distribution, Inc.Two piece reversible child resistant closure
US7214341Jan 30, 2004May 8, 2007Owens-Illinois Prescription Products Inc.Method of injection molding a preform including a radially extending element
US7455518Feb 16, 2007Nov 25, 2008Rexam Prescription Products Inc.Injection molding
US7942280 *Jun 5, 2008May 17, 2011Apothecary Products, Inc.Push tab vial assembly and methods
US8672153Mar 10, 2011Mar 18, 2014Apothecary Products, Inc.Push tab vial assembly and methods
US8727389 *May 1, 2008May 20, 2014Worthington Torch, LlcGas appliance
US20110240763 *Apr 5, 2010Oct 6, 2011Wagner Spray Tech CorporationFluid container connection mechanism
EP0926077A1Dec 1, 1998Jun 30, 1999Owens-Illinois Prescription Products Inc.Child resistant screw closure
EP2263947A1 *Jun 16, 2010Dec 22, 2010F.Ceredi S.P.A.Container with hermetic seal provided with a safety device
Classifications
U.S. Classification215/221, 215/216
International ClassificationB65D50/04, B65D41/04, B65D50/00
Cooperative ClassificationB65D50/046
European ClassificationB65D50/04F2