US3782574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamperproof closure for containers
Assignee: Individual
•
Filing: 1971-08-17
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Granted: 1974-01-01
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Expires: 1991-08-17
Abstract
Abstract In order to prevent ready access or accidental opening of containers, the closure cap is formed with a plurality of projections or ridges which are of unequal circumferential length and are spaced apart by unequal circumferential distances. As the cap is fitted to the containers the projections pass through corresponding slots formed on the wall of the container. Thereafter the cap is rotated to a random position to prevent ready access. An independently rotatable locking ring having similar slots may be provided for greater security.
Inventors
- 👤 R Rumble
- 👤 Z Rumble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:58
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D43/00; B65D43/02; B65D43/0202; B65D43/0225; B65D43/0231; B65D43/0235; B65D43/0237; B65D43/0256; B65D50/00; B65D50/02; B65D50/04; B65D50/043; B65D50/06; B65D50/061; B65D2401/00; B65D2401/15; B65D2401/25; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/0062; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00805
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
260 words
A tamper-proof container having cylindrical side wall portions, a bottom, and an open mouth portion, a cylindrical closure member including a depending cylindrical skirt portion and a top portion, said skirt portion, in the applied position of said closure, being telescoped over said side wall portion of said container adjacent said mouth, a first series of spaced projections of unequal circumferential length on the inner face of said skirt extending toward the side wall portions of said container, the spaces between said projections defining axially directed slots, a second series of projections extending outwardly from the side wall portions of said container and defining axially directed slots therebetween, an annular collar rotatably mounted on and fixed against axial movement relative to said container, a third plurality of projections on said collar of the same circumferential extent and spacing as said projections of said second series and defining slots therebetween, said third plurality of projections being retatable into registry with the projections of said second series, the slots and projections of the second and third series, in the registering position thereof, being coordinated with the slots and projections of said first series, to permit the passage of said first series of projections axially past the projections of said second and third series at a predetermined relatively rotated position of said closure and said container, whereby removal of said closure from said container may be effected only when the projections of said second and third series are in said registering position and said closure and container are in said predetermined rotated position.
Claim 2
Dependent Claim
260 words
A tamper-proof container having cylindrical side wall portions, a bottom, and an open mouth portion, a cylindrical closure member including a depending cylindrical skirt portion and a top portion, said skirt portion, in the applied position of said closure, being telescoped over said side wall portion of said container adjacent said mouth, a first series of spaced projections of unequal circumferential length on the inner face of said skirt extending toward the side wall portions of said container, the spaces between said projections defining axially directed slots, a second series of projections extending outwardly from the side wall portions of said container and defining axially directed slots therebetween, an annular collar rotatably mounted on and fixed against axial movement relative to said container, a third plurality of projections on said collar of the same circumferential extent and spacing as said projections of said second series and defining slots therebetween, said third plurality of projections being retatable into registry with the projections of said second series, the slots and projections of the second and third series, in the registering position thereof, being coordinated with the slots and projections of said first series, to permit the passage of said first series of projections axially past the projections of said second and third series at a predetermined relatively rotated position of said closure and said container, whereby removal of said closure from said container may be effected only when the projections of said second and third series are in said registering position and said closure and container are in said predetermined rotated position.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein said collar is rotatably mounted in an annular groove formed on the exterior of said container.
Claim 4
Dependent Claim
197 words
A tamper-proof closure and container combination comprising a closure formed about its periphery with a skirt having a single series of spaced, inwardly directed projections, said projections having their upper faces disposed in a common plane, the projections being of unequal circumferential length and spaced apart by unequal circumferential distances, said container including a locking ring rotatable relative to said closure, said ring being formed about its periphery with a single series of projections having their under faces disposed in a common plane, said projections of said locking ring forming therebetween a plurality of spaced slots, the slots of said locking ring having a circumferential length and positioning relative to said ring to permit the passage therethrough of said projections of said closure as said closure is shifted axially onto said container when said closure is located in a predetermined rotational position relative to said locking ring, the upper faces of said projections of said closure and the under surface of said projections of said container being in co-planar alignment in the assembled position of said parts, said closure and container being separable by relative axial movement when said slots are disposed in registry with said projections.
Claim 5
Dependent Claim
197 words
A tamper-proof closure and container combination comprising a closure formed about its periphery with a skirt having a single series of spaced, inwardly directed projections, said projections having their upper faces disposed in a common plane, the projections being of unequal circumferential length and spaced apart by unequal circumferential distances, said container including a locking ring rotatable relative to said closure, said ring being formed about its periphery with a single series of projections having their under faces disposed in a common plane, said projections of said locking ring forming therebetween a plurality of spaced slots, the slots of said locking ring having a circumferential length and positioning relative to said ring to permit the passage therethrough of said projections of said closure as said closure is shifted axially onto said container when said closure is located in a predetermined rotational position relative to said locking ring, the upper faces of said projections of said closure and the under surface of said projections of said container being in co-planar alignment in the assembled position of said parts, said closure and container being separable by relative axial movement when said slots are disposed in registry with said projections.
Claim 6
Dependent Claim
49 words
A tamper-proof closure in accordance with claim 3 wherein said projections include complemental cam faces positioned to interengage in the course of axial movement of said closure onto said container, whereby said closure and container may be assembled, notwithstanding the projections of said closure and container are in registry.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |