US3827592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Childproof container closure
Assignee: Individual
•
Filing: 1972-09-25
•
Granted: 1974-08-06
•
Expires: 1992-09-25
Abstract
Abstract The neck of a container, such as a medicine bottle, has a bead gripped from below by an annular lip of an elastic closure member which is slipped around that neck from above. A cover for the open top of the neck is integral with that member or threaded into same and can be removed only with the aid of a special key engaging the cover under slight downward pressure from above.
Inventors
- 👤 W Deussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/06; B65D50/067
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
108 words
A childproof closure for a container having an open-topped neck, comprising: external cam means on said neck; a cover for said neck having a depending skirt provided with internal cam means matingly engaging said external cam means for normally holding said cover onto the open top of said neck with sufficient frictional force to resist removal by the bare hands of a child; and a key detachably fitting onto said cover for imparting to the latter an untwisting rotary motion about an axis disengaging said cam means from each other, said key and said cover being respectively provided with mating first and second formations arrayed about said axis.
Claim 2
Dependent Claim
108 words
A childproof closure for a container having an open-topped neck, comprising: external cam means on said neck; a cover for said neck having a depending skirt provided with internal cam means matingly engaging said external cam means for normally holding said cover onto the open top of said neck with sufficient frictional force to resist removal by the bare hands of a child; and a key detachably fitting onto said cover for imparting to the latter an untwisting rotary motion about an axis disengaging said cam means from each other, said key and said cover being respectively provided with mating first and second formations arrayed about said axis.
Claim 3
Dependent Claim
16 words
A childproof closure as defined in claim 1 wherein said skirt has a smooth outer surface.
Claim 4
Dependent Claim
48 words
A childproof closure as defined in claim 1 wherein said first and second formations are serrations having flanks inclined with reference to said axis at an angle sufficient to exert upon said key an upward camming force requiring a countervailing downward pressure for maintaining same in mating engagement.
Claim 5
Dependent Claim
33 words
A childproof closure as defined in claim 3 wherein said key and said cover are provided with complementary annular surfaces bearing said serrations, said surfaces having generatrices whose extensions converge on said axis.
Claim 6
Dependent Claim
31 words
A childproof closure as defined in claim 4 wherein said surfaces include an upwardly converging outer peripheral surface of said cover, said key forming a socket for said outer peripheral surface.
Claim 7
Dependent Claim
22 words
A childproof closure as defined in claim 1 wherein said external cam means comprises a set of male threads on said neck.
Claim 8
Dependent Claim
52 words
A childproof closure as defined in claim 6 wherein said neck is provided with an outer peripheral bead below said male threads, said skirt consisting of elastic material and terminating in a inner peripheral lip underlying said bead for resisting a detachment of said cover from said neck by Said untwisting motion.
Claim 9
Dependent Claim
37 words
A childproof closure as defined in claim 7 wherein said skirt is externally provided in the region of said lip with a frangible annular band rupturing upon radial expansion of said lip by said bead during untwisting.
Claim 10
Dependent Claim
27 words
A childproof closure as defined in claim 1, further comprising a sleeve on said neck surrounding said neck and affording only restricted access to said second formations.
Claim 11
Dependent Claim
49 words
A childproof closure as defined in claim 9 wherein said sleeve has a J-profile defining an upwardly open annular channel bounded by an outer and an inner annular wall, said inner wall bearing said external cam means, said skirt being received in said channel with freedom of relative rotation.
Claim 12
Dependent Claim
49 words
A childproof closure as defined in claim 10 wherein said neck is provided near its top with an outer peripheral bead, said inner wall being elatic and bearing from below on said bead for preventing relative upward movement of said sleeve, the latter being freely rotatable on said neck.
Claim 13
Dependent Claim
29 words
A childproof closure as defined in claim 11 wherein said sleeve is provided with outer surface irregularities facilitating manual retention thereof during rotation of said cover by said key.
Claim 14
Dependent Claim
55 words
A childproof closure as defined in claim 10 wherein said cover has a beveled peripheral surface bearing said second formations, said outer wall spacedly girding said beveled surface and forming therewith an upwardly diverging annular gap, said key having an annular flange of downwardly converging profile fitting into said gap and bearing said first formations.
References Cited (Backward Citations)
US3705662A
Cited
US3771681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |