Closure With False Thread For A Package
A closure includes a polymeric top wall portion, a polymeric annular skirt portion, and a polymeric tamper-evident band. The polymeric annular skirt portion depends from the polymeric top wall portion. The annular skirt portion includes an internal thread formation for mating engagement with an external thread formation of a container, and first and second false threads. The internal thread formation includes a first closure lead and a second closure lead. Each of the first and second closure leads is in the form of a helix. Each of the false threads is located on roughly opposing sides of the closure. The first false thread assists in maintaining the contact between the first closure lead and a first finish lead of the container. The second false thread assists in maintaining the contact between the second closure lead and a second finish lead of the container. The polymeric tamper-evident band depends from and is at least partially detachably connected to the polymeric annular skirt portion by a frangible connection.
1 . A closure comprising:
a polymeric top wall portion;
a polymeric annular skirt portion depending from the polymeric top wall portion, the annular skirt portion including an internal thread formation for mating engagement with an external thread formation of a container, and first and second false threads, the internal thread formation including a first closure lead and a second closure lead, each of the first and second closure leads being in the form of a helix, each of the false threads being located on roughly opposing sides of the closure, the first false thread assisting in maintaining the contact between the first closure lead and a first finish lead of the container, the second false thread assisting in maintaining the contact between the second closure lead and a second finish lead of the container; and
a polymeric tamper-evident band depending from and being at least partially detachably connected to the polymeric annular skirt portion by a frangible connection.
2 . The closure of claim 1 , wherein the closure further includes a liner.
3 . The closure of claim 1 , wherein the shape of the closure is generally cylindrical.
4 . The closure of claim 1 , wherein the first and second closure leads are continuous.
5 . The closure of claim 1 , wherein the first and second false threads are located generally from about 160 to about 200 degrees from each other on opposing sides of the closure.
6 . The closure of claim 1 , wherein a depth of the first and second false threads are from about 40 to about 80% of a depth of the first and second closure leads.
7 . The closure of claim 6 , wherein the depth of the first and second false threads are from about 55 to about 75% of the depth of the first and second closure leads.
8 . The closure of claim 1 , wherein the first and second false threads extend from about 10 to about 50 degrees around the circumference of the closure.
9 . The closure of claim 8 , wherein the first and second false threads extend from about 15 to about 40 degrees around the circumference of the closure.
10 . The closure of claim 1 , wherein the first and second false threads have substantially similar pitches as the first and second closure leads.
11 . The closure of claim 1 , wherein the closure is a two-piece closure assembly.
12 . The closure of claim 1 , wherein the closure is a one-piece closure assembly.
13 . The closure of claim 1 , wherein the closure further includes an oxygen-scavenger material or an oxygen-barrier material.
14 . The closure of claim 1 , further including a third closure lead.
15 . The closure of claim 1 , further including a third false thread.
16 . A package comprising:
a container having a neck portion defining an opening, the container having an external thread formation on the neck portion, the external thread formation including a first finish lead and a second finish lead; and
a closure being configured for fitment to the neck portion of the container for closing the opening, the closure comprising a polymeric top wall portion, a polymeric annular skirt portion and a polymeric tamper-evident band, the polymeric annular skirt portion depending from the polymeric top wall portion, the annular skirt portion including an internal thread formation for mating engagement with the external thread formation of the container, and first and second false threads, the internal thread formation including a first closure lead and a second closure lead, each of the first and second closure leads being in the form of a helix, each of the false threads being located on roughly opposing sides of the closure, the first false thread assisting in maintaining the contact between the first closure lead and a first finish lead of the container, the second false thread assisting in maintaining the contact between the second closure lead and a second finish lead of the container, the polymeric tamper-evident band depending from and being at least partially detachably connected to the polymeric annular skirt portion by a frangible connection.
17 . The package of claim 16 , wherein each of the first and second false threads has at least about 20% of its features overlapping with a respective one of the first and second finish leads when the closure and container are at full application.
18 . The package of claim 16 , wherein each of the first and second false threads has from about 20% to about 50% of its features overlapping with a respective one of the first and second finish leads when the closure and container are at full application.
19 . The package of claim 16 , wherein at least a portion of the first false thread is located between the first closure lead and the second finish lead, and wherein at least a portion of the second false thread is located between the second closure lead and the first finish lead.
20 . The package of claim 16 , wherein the closure further includes a liner.
21 . The package of claim 16 , wherein the first and second false threads are located generally from about 160 to about 200 degrees from each other on opposing sides of the closure.
22 . The package of claim 16 , wherein the closure is a one-piece closure assembly.
23 . A closure comprising:
a polymeric top wall portion;
a polymeric annular skirt portion depending from the polymeric top wall portion, the annular skirt portion including an internal thread formation for mating engagement with an external thread formation of a container, and first and second threads, the internal thread formation including a first continuous closure lead in the form of a helix, each of the false threads being located on roughly opposing sides of the closure, the first false thread assisting in maintaining the contact between the first closure lead and a first finish lead of the container, the second false thread assisting in maintaining the contact between the second closure lead and a second finish lead of the container; and
a polymeric tamper-evident band depending from and being at least partially detachably connected to the polymeric annular skirt portion by a frangible connection.
24 . A package comprising:
a container having a neck portion defining an opening, the container having an external thread formation on the neck portion, the external thread formation including a first finish lead and a second finish lead; and
a closure being configured for fitment to the neck portion of the container for closing the opening, the closure comprising a polymeric top wall portion, a polymeric annular skirt portion and a polymeric tamper-evident band, the polymeric annular skirt portion depending from the polymeric top wall portion, the annular skirt portion including an internal thread formation for mating engagement with the external thread formation of the container, and first and second false threads, the internal thread formation including a first continuous closure lead in the form of a helix, each of the false threads being located on roughly opposing sides of the closure, the first false thread assisting in maintaining the contact between the first closure lead and a first finish lead of the container, the second false thread assisting in maintaining the contact between the second closure lead and a second finish lead of the container, the polymeric tamper-evident band depending from and being at least partially detachably connected to the polymeric annular skirt portion by a frangible connection.