Foil lined snap-on, screw-off closure and container neck

In combination, a container having a neck and a container closure, said neck having an upper opening, a lip surrounding said opening, a neck stretch depending from said lip, said neck stretch having an exterior, and at least one first helical engagement means formed on said exterior of said neck stretch, said closure having a top, said top having an underside, an upper skirt depending from said top, said upper skirt having an interior, and at least one second helical engagement means formed on said interior of said upper skirt, said first and second helical engagement means being shaped to slip past one another without rotation of said closure relative to said neck and interengage when said closure is applied to said neck, the improvement in said combination comprising,

• said neck having at least two vertically extending recessed portions, each of said recessed portions being defined by at least one interruption in said first helical engagement means,
• said closure having a seal disc below said top formed for covering said opening and substantially sealing with said lip after said closure is applied to said neck, said seal disc having a peripheral edge and a tab for removal of said seal disc from said neck, said tab depending from said peripheral edge proximate said interior of said upper skirt prior to application of said cap to said neck, and
• first orientation means on said container and second orientation means on said closure for orienting said closure relative to said neck with said tab and one of said recessed portions substantially aligned,
• said tab being at least partially disposed in said one of said recessed portions when said closure is applied to said neck.

A container having a neck for use with a container closure having a top, an upper skirt depending from said top, said upper skirt having an interior, and at least one first helical engagement means formed on said interior of said upper skirt, a seal disc below said top formed for covering and substantially sealing with said neck after said closure is applied to said neck, said seal disc having a peripheral edge and a tab for removal of said seal disc from said neck, said tab depending from said peripheral edge proximate said interior of said upper skirt prior to application of said closure to said neck, and first orientation means,

• said neck having an upper opening, a lip surrounding said opening, a neck stretch depending from said lip, said neck stretch having an exterior, and at least one second helical engagement means formed on said exterior of said neck stretch, said second helical engagement means being shaped to slip past and engage said first helical engagement means when said closure is applied by moving said closure in a direct, axially downward direction relative to said neck, the improvement in said container comprising
• at least two vertically extending recessed portions, each of said recessed portions being defined by at least one interruption in said second helical engagement means, and
• second orientation means on said container for orienting said neck relative to said closure such that when said closure is applied to said neck, said tab and one of said recessed portions are substantially aligned and said tab is positioned in said one of said recessed portions.

A closure for use with a container having a neck having an upper opening, a lip surrounding said opening, a neck stretch portion depending from said lip, said neck stretch portion having an exterior, a plurality of first helical engagement means formed on said exterior of said neck portion,

• said closure having a top, an upper skirt portion depending from said top, said upper skirt portion having an interior, a plurality of second helical engagement means formed on said interior of said upper skirt portion shaped to mate with said first helical engagement means for retaining said closure on said neck, said second helical engagement means being shaped and dimensioned to slip past and engage said first helical engagement means to retain said closure on said neck when said closure is applied to said neck without rotation of said closure relative to said neck to seat said closure on said neck so that said closure may not be removed without unscrewing said closure, said second helical engagement means having a linear thread density of at least twelve threads per inch, and
• a seal disc positioned beneath said top prior to application of said closure to said neck and held within said closure by said second helical engagement means said seal disc being formed for covering said opening and substantially sealing with said neck after said closure is applied thereto, said seal disc having a tab for removal of said seal disc from said neck to uncover said opening, said tab depending from said seal disc proximate said interior of said upper skirt portion, said tab having a terminus below at least a portion of said second helical engagement means, said closure being characterized by the absence of a liner disc separating said seal disc from said underside of said top.

A closure for use with a container having a neck having an upper opening, a lip surrounding said opening, a neck stretch portion depending from said lip, said neck stretch portion having an exterior, a plurality of first helical engagement means formed on said exterior of said neck stretch portion, and first tamper-evidencing means,

• said closure having a top, said top having an underside, an upper skirt portion depending from said top, said upper skirt portion having an interior, a plurality of second helical engagement means formed on said interior of said upper skirt portion shaped to mate with said first helical engagement means, and second tamper-evidencing means,
• said second helical engagement means being shaped and dimensioned so that upon direct, axial downward movement of said closure relative to said neck without externally imposed relative rotation of said closure and said neck, said second helical engagement means slips past and engages said first helical engagement means and said closure seats on said neck so that said closure cannot be removed from said neck:
• without unscrewing said closure,
• said second helical engagement means having a linear thread density of at least twelve threads per inch, and
• a seal disc positioned underneath said top prior to application of said closure to said neck and held within said closure by said second helical engagement means, said seal disc surrounding said opening and substantially sealing with said neck after said closure is seated on said neck, said seal disc being substantially exposed to said underside of said top and having a peripheral edge and a tab depending from said peripheral edge proximate said interior of said upper skirt portion for removal of said seal disc from said neck, said tab having a terminus below at least a portion of said second helical engagement means, whereby said tab is positioned to prevent adherence of said tab to said underside of said top or to said interior of said upper skirt portion when said seal disc is applied to said lip and substantially sealed thereto.

In combination, a container having a neck and a container closure,

• said neck having an upper opening, a lip surrounding said upper opening, a neck stretch portion depending from said lip, said neck stretch portion having an exterior, and first tamper-evidencing means,
• said closure having a top, said top having an underside, an upper skirt portion depending from said top, said upper skirt portion having an interior, and second tamper-evidencing means,
• said neck having a plurality of first helical engagement means formed on said exterior of said neck stretch portion and said closure having a plurality of second helical engagement means formed on said interior of said upper skirt portion for retaining said closure on said neck, said closure being resilient and said first and second helical engagement means being shaped and dimensioned to slip past one another and interengage to retain said closure on said neck upon direct axial downward movement of said closure relative to said neck without rotation of said closure relative to said neck to seat said closure on said neck so that said closure may not be removed from said neck without unscrewing said closure, said first and second helical engagement means each having a linear thread density of at least twelve threads per inch,
• one of said first tamper-evidencing means and said second tamper-evidencing means being frangible, said first and second tamper-evidencing means being shaped and positioned to interengage once said closure is seated on said neck upon said direct axial downward movement, and
• a seal disc positioned underneath said top prior to application of said closure to said neck and held within said closure by said second helical engagement means said seal disc covering said opting and substantially sealing with said neck after said closure is applied thereto, said seal disc having a tab depending from said seal disc proximate said interior of said upper skirt portion for removal of said seal disc from said neck, said tab having a terminus below at least a portion of said second helical engagement means, whereby said tab is positioned to prevent adherence of said tab to said underside of said top or to said interior of said upper skirt portion when said seal disc is applied to said lip and substantially sealed thereto.

A closure for use with a container having a neck having an upper opening, a lip surrounding said opening, a neck stretch portion depending from said lip, said neck stretch portion having an exterior, a plurality of first helical engagement means formed on said exterior of said neck stretch portion

• said closure having a top, an upper skirt depending from said top, said upper skirt having an interior, a plurality of second helical engagement means formed on said interior of said upper skirt for retaining said closure on said neck, said second helical engagement means being shaped and dimensioned to slip past and engage said first helical engagement means to retain said closure on said neck when said closure is applied to said neck by moving said closure in a direct, axially downward direction relative to said neck,
• said interior of said upper skirt having a recessed portion defined by at least one interruption in said second helical engagement means and
• a seal disc beneath said top, said seal disc formed for covering said opening and substantially sealing with said neck after said closure is applied thereto, said seal disc having a peripheral edge and a tab depending from said peripheral edge of said seal disc proximate said interior of said upper skirt for removal of said seal disc from said neck to uncover said opening, said tab being positioned proximate said recessed portion such that when said closure is seated on said neck, said tab is held within said recessed portion between said interior of said upper skirt and said exterior of said neck stretch portion, said closure being characterized by the absence of a liner disc separating said seal disc from said underside of said top.

In combination, a container having a neck and a container closure,

• said neck having an upper opening, a neck stretch portion depending from said opening, said neck stretch portion having an exterior, and first tamper-evidencing means,
• said closure having a top, said top having an underside, an upper skirt portion depending from said top, said upper skirt portion having an interior, and second tamper-evidencing means,
• said neck having a plurality of first helical engagement means formed on said exterior of said neck stretch portion and said closure having a plurality of second helical engagement means formed on said interior of said upper skirt portion for retaining said closure on said neck, said closure being resilient and said first and second helical engagement means being shaped and dimensioned to slip past one another and interengage to retain said closure on said neck upon direct axial downward movement of said closure relative to said neck without relative rotation of said closure and said neck to seat said closure on said neck so that said closure cannot be removed from said neck without unscrewing said closure, said first and second helical engagement means having a linear thread density of at least twelve threads per inch,
• one of said first tamper-evidencing means and said second tamper-evidencing means being frangible, said first and second tamper-evidencing means being shaped and positioned to interengage once said closure is seated on said neck upon said direct axial downward movement,
• a seal disc positioned underneath said top, said seal disc covering said opening and substantially sealing with said neck after said closure is applied thereto, said seal disc having a tab for removal of said seal disc from said neck,
• said second helical engagement means including at least one interruption providing said interior of said upper skirt portion with a recessed portion formed for receiving said tab, and
• said tab depending from said seal disc proximate said recessed portion, whereby said tab is held within said recessed portion between said interior of said upper skirt portion and said exterior of said neck stretch portion when said closure is seated on said neck, whereby said tab is positioned to prevent adherence of said tab to said underside of said top or to said interior of said upper skirt portion when said seal disc is applied to said lip and substantially sealed thereto.

In combination, a container having a neck and a container closure,

• said neck having an upper opening, a lip surrounding said upper opening, a neck stretch portion depending from said lip, said neck stretch portion having an exterior,
• said closure having a top, said top having an underside, an upper skirt portion depending from said top, said upper skirt portion having an interior,
• said neck having a plurality of first helical engagement means formed on said exterior of said neck stretch and said closure having a plurality of second helical engagement means formed on said interior of said upper skirt portion for retaining said closure on said neck, said closure being resilient and said first and second helical engagement means being shaped and dimensioned to slip past one another and interengage to retain said closure on said neck upon direct axial downward movement of said closure relative to said neck without rotation of said closure relative to said neck to seat said closure on said neck so that said closure cannot be removed from said neck without unscrewing said closure, said first and second helical engagement means having a linear thread density of at least twelve threads per inch,
• a seal disc positioned underneath said top prior to application of said closure to said neck and held within said closure by said second helical engagement means, said seal disc covering said opening and substantially sealing with said neck after said closure is applied thereto, said seal disc having a tab depending from said seal disc proximate said interior of said upper skirt portion for removal of said seal disc from said neck, said tab having a terminus below at least a portion of said second helical engagement means, whereby said tab is positioned to prevent adherence of said tab to said underside of said top or to said interior of said upper skirt portion when said seal disc is applied to said lip and substantially sealed thereto.