Patent US5638972A successfully refreshed from Google Patents.
US5638972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linerless closure for carbonated beverage container
Assignee: Berry Global Inc
•
Filing: 1994-04-21
•
Granted: 1997-06-17
•
Expires: 2014-04-21
Abstract
Abstract A one piece plastic closure for sealing a container, the closure having a top portion and a skirt portion depending from the top portion. The closure has an annular sealing rib which projects downwardly from the underside of the top portion. The rib includes a first portion having a substantially cylindrical inner surface contiguous with the underside of the top portion and disposed radially inward of the skirt and a second, frusto-conical, portion contiguous with the end of the first portion distal to the underside of the top portion and extending radially inwardly and terminating in a circular free edge, such that during engagement of the cap with the neck of the container, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the first portion of the rib to form a gas-tight seal between the neck of the container and the closure.
Inventors
- 👤 Rodney Malcolm Druitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:52
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/34; B65D41/3442; B65D41/3447; B65D41/02; B65D41/04; B65D41/0407; B65D41/0428; B65D51/00; B65D51/16; B65D51/1672; B65D51/1688; B65D2401/00; B65D2401/15; B65D2401/20; Y; Y10; Y10S; Y10S215/00; Y10S215/01; Y10S425/00; Y10S425/809
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
195 words
A closure suitable for mounting onto a container, said closure being molded in one piece from a plastic resilient material and comprising a top portion and a skirt portion depending from the underside of the top portion, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a seal between at least an outer surface of the neck of the container and the closure.
Claim 2
Dependent Claim
195 words
A closure suitable for mounting onto a container, said closure being molded in one piece from a plastic resilient material and comprising a top portion and a skirt portion depending from the underside of the top portion, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a seal between at least an outer surface of the neck of the container and the closure.
Claim 3
Dependent Claim
58 words
The closure of claim 1, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 4
Dependent Claim
36 words
A closure as defined in claim 2 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 5
Dependent Claim
27 words
A closure as defined in claim 3 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 6
Dependent Claim
41 words
A closure as defined in claim 4 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 7
Dependent Claim
205 words
A closure for a container, said closure being molded in one piece from a resilient plastic material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for mounting the closure onto a container, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 8
Dependent Claim
205 words
A closure for a container, said closure being molded in one piece from a resilient plastic material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for mounting the closure onto a container, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 9
Dependent Claim
58 words
The closure of claim 6, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 10
Dependent Claim
36 words
A closure as defined in claim 6 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 11
Dependent Claim
27 words
A closure as defined in claim 6 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 12
Dependent Claim
41 words
A closure as defined in claim 6 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 13
Dependent Claim
20 words
The closure of claim 10, and further wherein the skirt portion has means for mounting the closure onto a container.
Claim 14
Dependent Claim
58 words
The closure of claim 11, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 15
Dependent Claim
36 words
A closure as defined in claim 11 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 16
Dependent Claim
27 words
A closure as defined in claim 11 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 17
Dependent Claim
41 words
A closure as defined in claim 11 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 18
Dependent Claim
27 words
The closure of claim 11, and further wherein the means for mounting the closure onto a container are disposed on the inner surface of the skirt portion.
Claim 19
Dependent Claim
61 words
The closure of claim 16, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion to thereby position.
Claim 20
Dependent Claim
36 words
A closure as defined in claim 16 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 21
Dependent Claim
27 words
A closure as defined in claim 16 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 22
Dependent Claim
41 words
A closure as defined in claim 16 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 23
Dependent Claim
213 words
A closure for a container, said closure being molded in one piece from a resilient plastic material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for cooperating with means on a container to thereby mount the closure on the container, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 24
Dependent Claim
213 words
A closure for a container, said closure being molded in one piece from a resilient plastic material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for cooperating with means on a container to thereby mount the closure on the container, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 25
Dependent Claim
58 words
The closure of claim 21, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 26
Dependent Claim
36 words
A closure as defined in claim 21 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 27
Dependent Claim
27 words
A closure as defined in claim 21 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 28
Dependent Claim
41 words
A closure as defined in claim 21 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 29
Dependent Claim
22 words
The closure of claim 21 and further wherein the cooperative means on the closure are disposed on the skirt of the closure.
Claim 30
Dependent Claim
58 words
The closure of claim 26, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 31
Dependent Claim
36 words
A closure as defined in claim 26 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 32
Dependent Claim
27 words
A closure as defined in claim 26 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 33
Dependent Claim
41 words
A closure as defined in claim 26 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 34
Dependent Claim
26 words
The closure of claim 26 and further wherein the cooperative means on the closure are disposed on the inner surface of the skirt of the closure.
Claim 35
Dependent Claim
58 words
The closure of claim 31, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 36
Dependent Claim
36 words
A closure as defined in claim 31 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 37
Dependent Claim
27 words
A closure as defined in claim 31 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 38
Dependent Claim
41 words
A closure as defined in claim 31 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 39
Dependent Claim
231 words
A closure for a pressurized container, said closure being molded in one piece from a plastic resilient material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for mounting the closure to a container, which means together with a sealing rib depending from the underside of the top portion hermetically seal a container to which the closure is mounted, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 40
Dependent Claim
231 words
A closure for a pressurized container, said closure being molded in one piece from a plastic resilient material and comprising a top portion and a skirt portion depending from the underside of the top portion, said closure further having means for mounting the closure to a container, which means together with a sealing rib depending from the underside of the top portion hermetically seal a container to which the closure is mounted, characterized in that an annular sealing rib projects downwardly from the underside of the top portion, said rib including a first portion having a substantially cylindrical inner surface, the first portion being contiguous with the top portion and lying radially inward of the skirt, and a second, frusto-conical, portion contiguous with the end of the first portion distal to the top portion and extending radially inwardly to terminate in a circular free edge, the first portion having an internal diameter relative to the external diameter of the neck of the container to which the closure is to be attached such that during engagement of the closure with the neck, the second, frusto-conical, portion will be engaged by the free end of the neck and folded back against the substantially cylindrical inner surface of the first portion of the rib to form a gas-tight seal between at least an outer surface of the neck of the container and the closure.
Claim 41
Dependent Claim
58 words
The closure of claim 36, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 42
Dependent Claim
36 words
A closure as defined in claim 36 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 43
Dependent Claim
27 words
A closure as defined in claim 36 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 44
Dependent Claim
41 words
A closure as defined in claim 36 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 45
Dependent Claim
22 words
The closure of claim 36, and further wherein the cooperative means on the closure are disposed on the skirt of the closure.
Claim 46
Dependent Claim
58 words
The closure of claim 41, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 47
Dependent Claim
36 words
A closure as defined in claim 41 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 48
Dependent Claim
27 words
A closure as defined in claim 41 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 49
Dependent Claim
41 words
A closure as defined in claim 41 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
Claim 50
Dependent Claim
23 words
The closure of claim 41, and further wherein the cooperative means on the closure are disposed on the inner surface of the skirt.
Claim 51
Dependent Claim
58 words
The closure of claim 46, and further wherein the rib has a shape, size and material of construction such that, during final movement attaching the closure to the container, said rib is disposed in a sealing relation between the top surface of said free end of the neck of the container and the underside of the top portion.
Claim 52
Dependent Claim
36 words
A closure as defined in claim 46 and further wherein the undersurface of the top portion is defined in part by a second annular rib depending from the underside of the top portion of the closure.
Claim 53
Dependent Claim
27 words
A closure as defined in claim 46 and further wherein the second rib extends radially inwardly and away from said top portion and is tapered in cross-section.
Claim 54
Dependent Claim
41 words
A closure as defined in claim 46 wherein said first portion of the rib joins said top portion at a position radially displaced from said skirt so as to define a generally annular gap between said first portion and the skirt.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-16 | 2000-12-16 | 2001-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-16 | 2004-12-16 | 2005-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-16 | 2008-12-16 | 2009-06-17 | $7700.00 | Window Closed / Lapsed |