Patent US3677431A successfully refreshed from Google Patents.
US3677431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: Continental Can Co Inc
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Filing: 1970-04-06
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Granted: 1972-07-18
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Expires: 1990-04-06
Abstract
Abstract A closure and finish ring assembly for a container in which both the closure proper and the finish ring which is received over the container and at the same time in turn receives the closure, may be formed as a unit and installed on the container by a press-on action without intentional rotation. After the ring and closure are in place on the container, the closure is removed by rotation thereof after releasing a lock provided to provide the container with a so-called tamper proof feature. In one form, the closure is cammed axially upwardly at the same time the closure skirt is deflected slightly outwardly for release from the finish ring. In another embodiment, complete or partial threads are formed on the ring associated with the container for separating the closure from the ring as the closure is moved axially. The closure and ring may be formed as a single unit by double injection molding, with the interface between the ring and closure forming, in effect, part of the mold for formation of the associated part. Molding materials and processing steps are selected so that the ring and closure do not bond to each other during formation.
Inventors
- 👤 James E Westfall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:19
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/08
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
110 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a seal finish for receiving an axially inwardly directed closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring.
Claim 2
Dependent Claim
110 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a seal finish for receiving an axially inwardly directed closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring.
Claim 3
Dependent Claim
32 words
A closure system as defined in claim 1 in which said portions of said skirt engaging said ring comprise threads on the inner surface thereof for engaging corresponding threads on said ring.
Claim 4
Dependent Claim
36 words
A closure system as defined in claim 1 in which means are provided on said ring for engaging at least a portion of said associated container for preventing rotation of said ring relative to said container.
Claim 5
Dependent Claim
46 words
A closure system as defined in claim 1 in which said portions of said skirt engaging said portion of said ring includes a groove formed in one of said ring and said closure, and a complementary tongue formed in the other of said ring and closure.
Claim 6
Dependent Claim
52 words
A closure system as defined in claim 1 in which means are provided for axial removal of said closure upon rotation thereof relative to said ring, in said means including a plurality of ramps on said ring, said ramps having generally axial facing surfaces for engaging oppositely directed surfaces on said ring.
Claim 7
Dependent Claim
73 words
A closure system as defined in claim 1 in which means are provided for axial removal of said closure upon relation thereof relative to said ring, said means including threads on said ring, said threads having portions thereof of increased radial extent relative to other portions thereof, whereby a closure operatively associated therewith will have the skirt portion thereof snugly engaged by said threads on said ring upon locking rotation of said closure.
Claim 8
Dependent Claim
48 words
A closure system as defined in claim 1 in which a portion of said closure is adapted to engage a portion of said ring to form locking means for preventing relative movement of said ring and closure with respect to each other while said locking means remain engaged.
Claim 9
Dependent Claim
37 words
A closure system as defined in claim 3 in which said means for preventing rotation of said ring include an adhesive on an inner surface of said ring for attachment of said ring to said associated container.
Claim 10
Dependent Claim
35 words
A closure system as defined in claim 3 in which said means for preventing rotation of said ring include teeth on an inner surface of said ring for engaging a part of said associated container.
Claim 11
Dependent Claim
22 words
A closure system as defined in claim 1 in which said ring and said closure are formed of a synthetic plastic material.
Claim 12
Dependent Claim
202 words
A composite closure assemBly for a container comprising, in combination, a closure receiving element adapted to be disposed over a portion of the container with which said assembly is associated in use and a closure element adapted to be removably received from said closure receiving element, said closure having an axially facing surface for engaging a seal finish portion of said closure receiving element, said closure receiving element including means for engaging a portion of said container to prevent removal thereof from said container when said closure receiving element is in position of use, means on said closure receiving element for providing a top seal finish for reception thereover of said closure element, means on said closure receiving element for engaging said cover element and retaining it in place, means for releasing said closure element from said closure receiving element upon rotation of said cover, means for preventing unintentional rotation of said closure receiving element relative to said associated container, said closure element including complementary means for engaging said engaging means on said receiving element, whereby rotational force applied to said cover will release said cover from said cover receiving element, leaving said cover receiving element in place on said associated container.
Claim 13
Dependent Claim
202 words
A composite closure assemBly for a container comprising, in combination, a closure receiving element adapted to be disposed over a portion of the container with which said assembly is associated in use and a closure element adapted to be removably received from said closure receiving element, said closure having an axially facing surface for engaging a seal finish portion of said closure receiving element, said closure receiving element including means for engaging a portion of said container to prevent removal thereof from said container when said closure receiving element is in position of use, means on said closure receiving element for providing a top seal finish for reception thereover of said closure element, means on said closure receiving element for engaging said cover element and retaining it in place, means for releasing said closure element from said closure receiving element upon rotation of said cover, means for preventing unintentional rotation of said closure receiving element relative to said associated container, said closure element including complementary means for engaging said engaging means on said receiving element, whereby rotational force applied to said cover will release said cover from said cover receiving element, leaving said cover receiving element in place on said associated container.
Claim 14
Dependent Claim
142 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said portions of said skirt engaging said portion of said ring including a groove formed in one of said ring and said closure, and a complementary tongue formed in the other of said ring and closure.
Claim 15
Dependent Claim
142 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said portions of said skirt engaging said portion of said ring including a groove formed in one of said ring and said closure, and a complementary tongue formed in the other of said ring and closure.
Claim 16
Dependent Claim
148 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, which further include means for axial removal of said closure upon rotation thereof relative to said ring, said means including a plurality of ramps on said ring, said ramps having generally axially facing surfaces for engaging oppositely directed surfaces on said ring.
Claim 17
Dependent Claim
148 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, which further include means for axial removal of said closure upon rotation thereof relative to said ring, said means including a plurality of ramps on said ring, said ramps having generally axially facing surfaces for engaging oppositely directed surfaces on said ring.
Claim 18
Dependent Claim
170 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, which further includes means for axial removal of said closure upon rotation thereof relative to said ring, said means including threads on said ring, said threads having portions thereof of increased radial extent relative to other portions thereoF, whereby a closure operatively associated therewith will have the skirt portion thereof snugly engaged by said threads on said ring upon locking rotation of said closure.
Claim 19
Dependent Claim
170 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, which further includes means for axial removal of said closure upon rotation thereof relative to said ring, said means including threads on said ring, said threads having portions thereof of increased radial extent relative to other portions thereoF, whereby a closure operatively associated therewith will have the skirt portion thereof snugly engaged by said threads on said ring upon locking rotation of said closure.
Claim 20
Dependent Claim
134 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said system further including an adhesive on an inner surface of said ring for attachment of said ring to said associated container to prevent rotation of said ring.
Claim 21
Dependent Claim
134 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said system further including an adhesive on an inner surface of said ring for attachment of said ring to said associated container to prevent rotation of said ring.
Claim 22
Dependent Claim
132 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said system further including teeth on an inner surface of said ring for engaging a part of said associated container to prevent rotation of said ring.
Claim 23
Dependent Claim
132 words
A closure system for a container comprising, in combination, a ring for reception over an end portion of an associated container, portions of the surface of said ring forming a finish for receiving a closure in a sealing relation, a closure associated with said finish ring and having thereon a closure skirt with portions thereof engaged with said finish in complementary relation thereto, said ring being adapted to be received over a portion of an associated container without intentional rotation thereof and means associated with said closure system for providing removal of said closure from said ring upon relative rotation between said closure and said ring, said system further including teeth on an inner surface of said ring for engaging a part of said associated container to prevent rotation of said ring.
References Cited (Backward Citations)
US3486654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |