Tamper evident bottle cap

A combination comprising:

• a container including a neck forming an opening;
• a closure for sealing said opening, said closure including a downwardly depending skirt;
• an external thread configuration on an outer surface of said neck;
• and
• an internal thread configuration on an inner surface of said skirt shaped to mate with said external thread configuration on said neck;
• said external and internal thread configurations being adapted to pass over each other upon downward movement of said closure skirt relative to said container neck, wherein one of said external and internal thread configurations have at least one thread lead and the other of said external and internal thread configurations have at least twice as many thread leads as said one thread configuration.

A tamper-evidencing closure for sealing a container, said closure comprising:

• a top, a depending annular skirt and a tamper-evidencing band frangibly connected to said annular skirt;
• said tamper-evidencing band including an inwardly turned retaining rim that extends at least partially upwardly, said retaining rim having a free edge adapted for engagement with a locking surface of the container;
• and
• said tamper-evidencing band including an attachment boss and an upwardly extending line of weakness adjacent said attachment boss such that when said closure is removed from the container, said line of weakness tears allowing said tamper-evidencing band to remain connected to said closure upon removal from said container.

11 A method of molding a closure including a tamper-evidencing band having an upwardly and inwardly extending retaining rim, said method comprising:

• closing a mold assembly having a cavity, a core, a core sleeve, and a splitter to define the shape of the closure;
• withdrawing the cavity away from the core, core sleeve, splitter, and the closure;
• staging the core and stripper away from the core sleeve to advance the closure away from the core sleeve;
• stopping the core allowing the stripper and the closure to move away from the core;
• retracting the core stripper to draw the closure toward the core and abut against the core such that the core stops movement of the closure;
• and
• continuing retraction of the core such that the closure is disengaged from the stripper as the closure abuts against the core.

A closure for sealing the opening of a container having a radially extending locking bead, said closure comprising:

• a top having a periphery;
• an annular skirt depending downwardly from said periphery and including a lower edge and a line of weakness extending upwardly from said lower edge;
• a tear tab extending downwardly from said skirt below said lower edge;
• and
• a tamper-evidencing locking member including an inwardly extending locking ring that extends radially inwardly from said skirt intermediate said top and said bottom edge, the retaining rim including a free edge that is adapted to engage the radially extending locking bead of the container when the closure is removed from the container neck.