Patent US4805791A successfully refreshed from Google Patents.
US4805791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Band with lock ring for tamper-evident cap
Assignee: Continental White Cap Inc
•
Filing: 1988-05-04
•
Granted: 1989-02-21
•
Expires: 2008-05-04
Abstract
Abstract This relates to a tamper-evident closure cap having a tamper-evident structure for locking engagement beneath a transfer bead of a container neck finish. The closure cap includes a customary tamper-evident band which is of a diameter to freely pass over both external threads and a transfer bead of a container neck finish. In order that a bridge rupturing pressure may be applied to the tamper-evident band, there is provided a separate lock ring of a size to engage beneath the transfer bead while having an outer portion overlying the tamper-evident band to transfer pressure thereto during the removal of the closure cap. The lock ring is radially expansible to freely pass down over the threads and transfer beads during the application of the closure cap.
Inventors
- 👤 Douglas G. Begley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:52
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/34; B65D41/3442; B65D41/3447; B65D2401/00; B65D2401/50; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/40
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
88 words
A closure cap comprising a body including an end wall and a depending skirt, and tamper-evident means carried by said skirt, said tamper-evident means being in the form of a tamper-evident band releasably connected to said skirt by a plurality of circumferentially spaced rupturable bridges, said tamper-evident band having a minimum internal diameter greater than the internal diameter of said skirt with the internal diameter of said tamper-evident band being one which will clear a customary container neck finish transfer bead behind which a tamper-evident band customarily engages.
Claim 2
Dependent Claim
88 words
A closure cap comprising a body including an end wall and a depending skirt, and tamper-evident means carried by said skirt, said tamper-evident means being in the form of a tamper-evident band releasably connected to said skirt by a plurality of circumferentially spaced rupturable bridges, said tamper-evident band having a minimum internal diameter greater than the internal diameter of said skirt with the internal diameter of said tamper-evident band being one which will clear a customary container neck finish transfer bead behind which a tamper-evident band customarily engages.
Claim 3
Dependent Claim
18 words
A closure cap according to claim 1 wherein said bridges slope radially outwardly and downwardly from said skirt.
Claim 4
Dependent Claim
47 words
A closure cap according to claim 1 wherein a lock ring is positioned between said skirt and said tamper-evident band for engagement behind a closure neck finish transfer bead to tension and rupture said bridges when said closure cap is initially removed from a container neck finish.
Claim 5
Dependent Claim
34 words
A closure cap according to claim 3 wherein said lock ring is radially expansible to clear threads and a transfer bead of an associated container neck finish during the application of said closure cap.
Claim 6
Dependent Claim
21 words
A closure cap according to claim 4 wherein said lock ring is in the form of a radially split flat ring.
Claim 7
Dependent Claim
35 words
A closure cap according to claim 3 wherein said lock ring is of a radial width to overlie said tamper-evident band and apply pressure to said tamper-evident band from a container neck finish transfer bead.
Claim 8
Dependent Claim
49 words
A closure cap according to claim 6 wherein said lock ring has a plurality of radial notches in an outer periphery thereof, said notches being spaced in accordance with the spacing of said bridges and having received therein said bridges to lock said lock ring to said closure cap.
Claim 9
Dependent Claim
36 words
A closure cap according to claim 3 wherein said lock ring has depending from an underside thereof a set of depending fins for engaging said tamper-evident band and limiting radially outward expansion of said lock ring.
Claim 10
Dependent Claim
47 words
A combination of a lock ring and a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on said tamper-evident band.
Claim 11
Dependent Claim
47 words
A combination of a lock ring and a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on said tamper-evident band.
Claim 12
Dependent Claim
20 words
A lock ring according to claim 9 wherein said lock ring is of a flat construction and is radially split.
Claim 13
Dependent Claim
23 words
A lock ring according to claim 10 wherein said lock ring has a plurality of bridges receiving notches in the outer periphery thereof.
Claim 14
Dependent Claim
35 words
A lock ring according to claim 10 wherein said lock ring has a set of depending fins for engaging an interior surface of an associated tamper-evident band to limit radial expansion of said lock ring.
Claim 15
Dependent Claim
74 words
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a plurality of bridges receiving notches in the outer periphery thereof.
Claim 16
Dependent Claim
74 words
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a plurality of bridges receiving notches in the outer periphery thereof.
Claim 17
Dependent Claim
86 words
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a set of depending fins for engaging an interior surface of an associated tamper-evident band to limit radial expansion of said lock ring.
Claim 18
Dependent Claim
86 words
A lock ring for use with a closure cap having a tamper-evident band connected to a skirt of said closure cap by a plurality of depending ruptureable bridges, said lock ring being radially outwardly expansible and of an external diameter to sit on a corresponding tamper-evident band, said lock ring being of a flat construction and being radially split, said lock ring having a set of depending fins for engaging an interior surface of an associated tamper-evident band to limit radial expansion of said lock ring.
References Cited (Backward Citations)
US1062532A
Cited
US1969524A
Cited
US1982806A
Cited
US2172159A
Cited
US2162752A
Cited
US2162711A
Cited
US2491139A
Cited
US3310191A
Cited
US3493140A
Cited
US4344383A
Cited
US4493427A
Cited
US4562931A
Cited
US4610367A
Cited
US4503986A
Cited
US4572389A
Cited
US4756438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |