Composite closure having disk tightening feature
AssigneeCrown Cork & Seal Technologies Corporation
InventorsGalen German, James L. Martin
Life of this patent
Estimating the term…
Abstract
A composite closure includes a band and an insert disk. A contact surface urges downwardly against the disk even while the band moves longitudinally relative to the disk or container. The closure has a fully tightened position in which the band's ring contacts the disk's annular channel, a loose position in which the ring is spaced apart from the annular channel, and an intermediate tightened position in which the ring is spaced apart from the disk and in which the contact surface urges against the curl. A retaining feature, which presses upwardly against the disk during the opening process, defines a gap in which the disk curl is disposed.
Claims47
A composite closure for coupling with a container, comprising:
- a circular insert disk including a curl formed at a periphery thereof;
- and
- a band including:
- an annular skirt including threads formed on an interior surface thereof;
- a retaining feature extending radially inwardly from the skirt;
- a ring extending radially inwardly from an upper portion of the skirt over at least a portion of the disk;
- and
- a contact surface extending inwardly from the skirt, the contact surface and the retaining feature forming a recess therebetween for receiving the disk curl, the contact surface spaced apart from a lower surface of the ring and being nonparallel, in longitudinal cross section, to a closure longitudinal axis;
- the closure having a fully tightened position in which the ring contacts the disk, a loose position in which the ring is spaced apart from the disk, and an intermediate tightened position in which the ring is spaced apart from the disk and in which the contact surface urges against the curl, the intermediate tightened position being between the fully tightened position and the loose position.
A composite closure for coupling with a container, comprising:
- a circular insert disk including a periphery thereof;
- and
- a band including:
- an annular skirt including threads formed on an interior surface thereof;
- a retaining feature extending radially inwardly from the skirt;
- a ring extending radially inwardly from an upper portion of the skirt over at least a portion of the disk;
- and
- a contact surface extending inwardly from the skirt, the contact surface and the retaining feature forming a recess therebetween for receiving the disk periphery, the contact surface spaced apart from a lower surface of the ring and being non-parallel, in longitudinal cross section, to a closure longitudinal axis;
- the closure having a fully tightened position in which the ring contacts the disk, a loose position in which the ring is spaced apart from the disk, and an intermediate tightened position in which the ring is spaced apart from the disk, the intermediate tightened position being between the fully tightened position and the loose position, the contact surface urging against the disk periphery to urge the disk downwardly while the closure is in the fully tightened position and in the intermediate position.
A composite closure and container combination comprising:
- a container including a neck that includes threads and a rim form thereon;
- a circular insert disk including an annular channel and a curl formed at a periphery thereof, the disk disposed over the container rim for forming a seal therewith;
- and
- a band including:
- an annular skirt including threads formed on an interior surface thereof and engaged to the container threads;
- a retaining feature extending radially inwardly from the skirt;
- a ring extending radially inwardly from an upper portion of the skirt over at least a portion of the disk annular channel;
- and
- a contact surface extending inwardly from the skirt, the contact surface and the retaining feature forming a recess therebetween for receiving the disk curl, the contact surface spaced apart from a lower surface of the ring and being substantially oblique, in longitudinal cross section, relative to a closure longitudinal axis;
- the closure having a fully tightened position in which the ring contacts the annular channel to urge the disk against the container rim, a loose position in which the ring is spaced apart from the annular channel, and an intermediate tightened position in which the ring is spaced apart from the disk and in which the contact surface urges against the curl to urge the disk against the container rim, the intermediate tightened position being between the fully tightened position and the loose position.
Dependencies are inferred from the claim text.