US3817416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety closure cap for containers
Assignee: Individual
•
Filing: 1972-08-02
•
Granted: 1974-06-18
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Expires: 1992-08-02
Abstract
Abstract There is disclosed a safety container closure attachable to the neck of a container or to a tubular base secured to the container. The safety closure comprises a screw cap which can be screwed off or on and constitutes the closure proper and a cover cap rotatably fitted upon the screw cap completely overlying the screw cap to prevent direct access to the same. The cover cap is normally biased into a position spaced apart from the screw cap so that rotation of the cover cap has no effect on the screw cap but can be axially depressed into a position in which it is coupled to the screw cap. With the cover cap in this coupling position, rotation of the cover cap causes rotation of the screw cap also thereby permitting opening or closing of the container.
Inventors
- 👤 A Costa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/122; B65D50/00; B65D50/02; B65D50/04; B65D50/041; B65D55/00; B65D55/02; B65D55/06; B65D55/08; B65D55/089
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
144 words
A closure device for selectively opening and closing a container, said device comprising in combination: a tubular inlet and outlet member secured at one end on the container to be opened or closed; a screw cap screwable off and on the other end of said member for opening or closing said other end; a cover cap rotatably fitted upon said screw cap; and coacting coupling means on the screw cap and the cover cap, said cover cap being axially displaceable into and out of a position of engagement of saiD coupling means; said cover cap being rotatable relative to said screw cap when the coupling means are disengaged and being rotatable in unison with the screw cap upon displacement of the cover cap into the axial position in which the coupling means are engaged to effect screwing off or on of the screw cap.
Claim 2
Dependent Claim
144 words
A closure device for selectively opening and closing a container, said device comprising in combination: a tubular inlet and outlet member secured at one end on the container to be opened or closed; a screw cap screwable off and on the other end of said member for opening or closing said other end; a cover cap rotatably fitted upon said screw cap; and coacting coupling means on the screw cap and the cover cap, said cover cap being axially displaceable into and out of a position of engagement of saiD coupling means; said cover cap being rotatable relative to said screw cap when the coupling means are disengaged and being rotatable in unison with the screw cap upon displacement of the cover cap into the axial position in which the coupling means are engaged to effect screwing off or on of the screw cap.
Claim 3
Dependent Claim
28 words
The closure device according to claim 1 wherein said cover cap covers the screw cap substantially completely to prevent direct access from the outside to the screww cap.
Claim 4
Dependent Claim
28 words
The closure device according to claim 1 wherein retaining means are provided on the cover cap and on the screw cap to prevent separation of the two caps.
Claim 5
Dependent Claim
58 words
The closure device according to claim 3 wherein said retaining means comprise a protrusion on an inner sidewall portion of the cover cap and a coacting protrusion on the outside of the sidewall of the screw cap, said protrusion on the cover cap underlying the protrusion on the screw cap thereby preventing pulling off of the cover cap.
Claim 6
Dependent Claim
32 words
The closure device according to claim 4 wherein said protrusion on the cover cap is in the form of an annular rib underlying the rim of the sidewall of the screw cap.
Claim 7
Dependent Claim
32 words
The closure device according to claim 1 wherein said coupling means comprise protruding ribs and complementary grooves on the inside and the outside of the cover cap and the screw cap respectively.
Claim 8
Dependent Claim
70 words
The closure device according to claim 1 and further comprising yieldable means interposed between said caps, said yieldable means biasing the two caps into a spaced-apart position in which said coupling means are disengaged and being arranged to yield for axial displacement of the cover cap into the position in which the coupling means are engaged by applying pressure to the outside of the bottom wall of the cover cap.
Claim 9
Dependent Claim
45 words
The closure device according to claim 7 wherein said yieldable means comprise at least one elastic member on the inside of the bottom wall of the cover cap and at least one elastic member on the outside of the bottom wall of the screw cap.
Claim 10
Dependent Claim
21 words
The closure cap according to claim 8 wherein the elastic members on the caps are integral with the respective bottom wall.
Claim 11
Dependent Claim
49 words
The closure device according to claim 8 wherein the elastic member on the cover cap is in the form of at least one slotted ring and the elastic member on the screw cap is in the form of a disc-shaped protrusion disposed opposite to said ring for coaction therewith.
Claim 12
Dependent Claim
18 words
The closure device according to claim 1 wherein said tubular member constitutes a neck part of the container.
Claim 13
Dependent Claim
53 words
The closure device according to claim 1 wherein said tubular member comprises a base part rigidly attachable to the container, said base part having external threads and said screw cap having on its sidewall internal threads engageable with the threads on the base part for screwing the screw cap to the base part.
Claim 14
Dependent Claim
48 words
The closure device according to claim 12 wherein said base part comprises an upper portion having thereon said external threads and a lower portion having in its rim an annular groove defining two shanks, said shanks being fittable upon the rim of a neck part of a container.
Claim 15
Dependent Claim
65 words
The closure device according to claim 13 and comprising a container with a neck part thereon, and wherein at least one of said shanks has on its inside a protrusion, and wherein the neck part of the container has an outwardly extending protrusion engageable with said protrusion on the shank in overlying relationship for locking the base part to the neck part of the container.
Claim 16
Dependent Claim
72 words
The closure device according to claim 14 wherein said neck part has adjacent to its rim an outwardly protruding annular rib, and wherein the inner shank defining the groove in the base part is of a length such that it extends past said rib and has on its inner side an inwardly protruding annular rib underlying said rib on the neck part when the base part is fitted upon he neck part.
Claim 17
Dependent Claim
106 words
The closure device according to claim 1 wherein the cover cap has on the inside of its sidewaLl protrusions and the screw cap has on the outside of its sidewall protrusions, said protrusions being disposed and shaped to coact with each other when the cover cap is in the position in which the coupling means are disengaged for rotating the cover cap for unison with the screw cap in the direction for screwing the screw cap tightly upon the tubular member and for sliding relative to each other upon rotation of the cover cap in the direction for unscrewing the screw cap from said tubular member.
Claim 18
Dependent Claim
48 words
The closure device according to claim 1 wherein a tear-off strip is interposed between the cover cap and the screw cap so as to prevent prior to removal of the tear-off strip axial displacement of the cover cap into the position in which the coupling means are engaged.
Claim 19
Dependent Claim
49 words
The closure device according to claim 17 wherein said tear-off strip encompasses the caps and is along one of its circumferential edges tearably secured to the cover cap the other circumferential edge against the tubular member for preventing axial displacements of the cover cap relative to the screw cap.
Claim 20
Dependent Claim
38 words
The closure device according to claim 17 wherein said tear-off strip has along said other edge a plurality of protrusions and wherein said tubular member has on its outside recesses engageable with said protrusions on the tear-off strip.
Claim 21
Dependent Claim
32 words
The closure device according to claim 18 wherein said tear-off strip and said cover cap are circumferentially secured to each other by a tearable bridge between said cap and the tear-off strip.
Claim 22
Dependent Claim
26 words
The closure device according to claim 1 wherein the outside of the sidewall of the cover cap is roughened to facilitate gripping of the cover cap.
References Cited (Backward Citations)
US3489319A
Cited
US3692199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |