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US 9,051,088 B2Granted
Vacuum release seal for a closure and container package
AssigneeOwens-Brockway Glass Container Inc.
InventorBrian J. Chisholm
Life of this patent
Estimating the term…
Abstract
A seal for sealing engagement between a closure and a container. A seal ring has a sealing portion. A projection is coupled to the seal ring, extends circumferentially and radially outwardly of the seal ring, and has a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure. The seal may be part of a package and sealingly engaged between a sealing surface of a container of the package and a base of a closure of the package when the closure is secured to the container.
Claims34
A multi-piece seal for sealing engagement between a closure and a container, and including:
- an elastomeric seal ring having a sealing portion;
- and
- a plastic projection being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring, and having a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure,
- wherein the seal ring has a longitudinally cross-sectional centroid, and the projection has a longitudinally cross-sectional centroid that is radially outboard of the longitudinally cross-sectional centroid of the seal ring.
1 more element
A seal for sealing engagement between a closure and a container, and including:
- a seal ring having a sealing portion;
- and
- a projection being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring, and having a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure,
- wherein the projection is part of a carrier ring disposed radially outwardly of the seal ring and the seal ring is connected to the carrier ring by at least one connection portion.
1 more element
A package including:
- a container having a neck finish with at least one external closure securement element and an annular axially facing sealing surface;
- a closure coupled to the container and including:
- a base for covering the container sealing surface;
- and
- a cylindrical wall having at least one internal container securement element for engaging the at least one external closure securement element on the container and also having a seal drive feature for driving the closure-driven feature of the projection;
- and
- a seal for sealing engagement between the closure and the container, and including:
- a seal ring having a sealing portion;
- and
- a projection being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring, and having a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure, wherein the closure-driven feature is a ratchet feature, and wherein the seal is sealingly engaged between the sealing surface of the container and the closure base when the closure is secured to the container.
7 more elements
A seal for sealing engagement between a closure and a container, and including:
- a seal ring having a sealing portion;
- and
- a projection being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring, and having a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure,
- wherein the projection is a circumferentially and radially outwardly extending cam arm that includes a fulcrum end, extends circumferentially along and radially away from the seal ring, and includes a closure engagement end circumferentially and radially spaced from the fulcrum end.
1 more element
A package including:
- a container having a neck finish with at least one external closure securement element and an annular axially facing sealing surface;
- a closure coupled to the container and including:
- a base for covering the container sealing surface;
- and
- a cylindrical wall having at least one internal container securement element for engaging the at least one external closure securement element on the container and also having a seal drive feature for driving the closure-driven feature of the projection;
- and
- a seal for sealing engagement between the closure and the container, and including:
- a seal ring having a sealing portion;
- and
- a projection being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring, and having a closure-driven feature engageable by the closure when the closure is rotated on the container in a loosening direction to unseat the seal ring from sealing engagement between the container and the closure, wherein the projection is a circumferentially and radially outwardly extending cam arm, and wherein the seal is sealingly engaged between the sealing surface of the container and the closure base when the closure is secured to the container.
7 more elements
A closure and a container package that includes:
- a container having a finish with at least one closure securement element and an annular axially facing sealing surface,
- a closure that includes a base and a cylindrical wall and at least one container securement element on said cylindrical wall for engaging said at least one closure securement element on said finish, and
- an annular seal ring disposed between said base and said sealing surface for sealing engagement with said base and said sealing surface upon threaded tightening of said closure onto said finish,
- characterized in that
- an annular support ring is disposed adjacent to said seal ring, said support ring having a circumferentially facing closure abutment, and
- said closure includes an internal lug to engage said closure abutment on said support ring upon rotation of said closure on said finish in an unthreading direction to rotate said support ring and stretch portions of said seal ring out of sealing engagement with said sealing surface and/or said base.
3 more elements
A closure and a container package that includes:
- a container having a finish with at least one closure securement element and an annular axially facing sealing surface,
- a closure that includes a base and a cylindrical wall and at least one container securement element on said cylindrical wall for engaging said at least one closure securement element on said finish, and
- an annular seal ring disposed between said base and said sealing surface for sealing engagement with said base and said sealing surface upon threaded tightening of said closure onto said finish,
- characterized in that
- an annular support ring is disposed adjacent to said seal ring, said support ring having a radially outwardly facing cam, and
- said closure includes an internal lug to engage said cam on said support ring upon rotation of said closure on said finish in an unthreading direction to push said cam and said seal ring radially inwardly out of sealing engagement with said sealing surface and/or said base.
3 more elements
A package seal to seal between a closure and a container, and comprising:
- an elastomeric seal ring having a sealing portion;
- and
- a plastic carrier ring coupled to the seal ring and including a projection disposed radially outwardly of the seal ring and having at least one of a cam follower or a ratchet feature,
- wherein the seal ring is connected to the carrier ring by at least one connection portion that includes a plurality of circumferentially spaced apart connection portions of the seal ring, the seal ring having unconnected portions not connected to the carrier ring circumferentially between the connected portions, and wherein the seal includes a plurality of gaps extending radially between the seal ring and the carrier ring and circumferentially between the conntected portions.
1 more element
A package seal to seal between a closure and a container, and comprising:
- an elastomeric seal ring having a sealing portion;
- and
- a plastic carrier ring coupled to the seal ring and including a projection disposed radially outwardly of the seal ring and having at least one of a cam follower or a ratchet feature, wherein the ratchet feature includes a tangentially outwardly facing ramp and a circumferentially facing abutment and wherein the cam follower includes a fulcrum end, extends circumferentially along and radially away from the seal ring, and includes a closure engagement end circumferentially and radially spaced from the fulcrum end.
Dependencies are inferred from the claim text.