Tamper-evident plastic closure system with snap-on band
AssigneeSentinel Packaging Systems, Inc.
InventorHenry Nyman
Life of this patent
Estimating the term…
Abstract
A tamper evident closure for containers having finish a with thread means and a radially outwardly circumferentially extending bead below the threads comprising, a cap portion of cup-like form having internal threads for cooperatively engaging the threads on a container to apply and remove the cap portion, a retainer ring depending from the lower edge of the skirt portion of the cap and connected thereto by a series of circumferentially spaced bridge connections, and a tamper evident band having means for rotatably mount on the retaining ring and rotatable thereto and including a series of spring fingers for engaging under the retainer bead on the container when the closure is fully seated.
Claims27
A closure assembly for a container having a retainer bead, comprising:
- a cap portion having internal threads for cooperatively engaging the threads of a container's neck finish to apply, retain and remove the cap portion;
- a retainer ring depending from the lower edge of the skirt portion of the cap and connected thereto by frangible connections;
- and
- a tamper evident band having means for mechanically engaging over said retaining ring and rotatable thereto having a portion completely overlying said frangible connections and including a series of flexible means for engaging under the retainer bead on the container's neck finish when the closure is fully seated.
A closure assembly for a container having external threads and a retainer bead said closure assembly comprising an outer cap, means for mounting and retaining said outer cap to an inner cap member having a skirt portion and internal threads for cooperatively engaging the threads of the container to apply, retain and remove the inner cap member;
- a retainer ring depending from a lower edge of the skirt portion of the inner cap member and connected thereto by a series of circumferentially spaced frangible bridge connections;
- a tamper evident band portion having a means for mechanically engaging over said retainer ring and rotatable thereto and including a series of flexible elements for engaging under the retainer bead on the container when the closure assembly is fully seated;
- and
- an outwardly projecting flange positioned to be engaged by said outer cap to fracture said bridge connections as the outer cap is depressed to engage a series of inter-engaging lugs and ribs, whereby the inner cap and outer cap rotate together for removal from the container.
A closure assembly for a container having external threads and a retainer bead said closure assembly comprising an outer cap, means for mounting said outer cap to an inner cap having internal threads for cooperatively engaging the container threads to apply and remove the inner and outer caps;
- a retainer ring depending from the lower edge of the skirt portion of the inner cap and connected thereto by a series of circumferentially spaced bridge connections;
- and a tamper evident band having means for mechanically engaging and mounting to said retaining ring and rotatable thereto and including a series of flexible elements for engaging under the retainer bead on the container when the closure assembly is fully seated, and wherein the tamper evident band has a radially outwardly projecting flange positioned to be engaged by the outer cap to fracture the bridge connections as the outer cap is depressed to engage a series of inter-engaging lugs and ribs on the inner cap and the outer cap, whereby the inner cap and outer cap rotate together for removal from the container.
A tamper evident closure for containers having a finish with threads and a radially outwardly directed circumferentially extending bead below the threads said closure comprising:
- a cap portion having internal threads for cooperatively engaging the threads on a container to apply and remove the cap portion;
- a retainer ring depending from the lower edge of the skirt portion of the cap and connected thereto by a series of circumferentially spaced bridge connections;
- and
- a tamper evident band having means for rotatably mounting on the retaining ring and including a series of spring fingers for engaging under the retainer bead on the container when the closure is fully seated, said tamper evident band having a radially outwardly projecting flange positioned to be engaged by an outer cap to fracture the bridge connections.
A closure assembly comprising an outer cap, an inner cap, a spring means for normally biasing the outer cap to a raised position relative to the inner cap and including a series of inter-engaging lugs and ribs on the inner and outer caps, whereby when the outer cap is pressed axially downwardly to overcome the bias of said spring means, the lugs and ribs inter-engage whereby the caps rotate together to remove the closure assembly from a container, and a tamper evident band connected to the inner cap having a radially outwardly projecting flange positioned to be engaged by the outer cap to fracture bridge connections connecting a breakaway ring to said inner cap.
A tamper evident closure for a container having a finish with threads and a radially outwardly, circumferentially extending bead below the threads said closure comprising:
- a cap having a skirt portion and internal threads for cooperatively engaging the threads on the container to apply and remove the cap portion;
- a retainer ring depending from the lower edge of the skirt portion of the cap and connected thereto by a series of circumferentially spaced bridge connections;
- a tamper evident band having means for rotatably mounting the tamper evident band onto the retaining ring and means engaging under for the retainer bead on the container when the closure is fully seated;
- and
- said tamper evident band having a radially outwardly projecting flange positioned to be engaged by the cap to fracture the bridge connections.
Dependencies are inferred from the claim text.