Hinged closure and container

A tamper evident closure and container combination comprising:

• a container having a neck terminating in a top rim defining a mouth of circular shape, said neck including a cap latch circumferentially surrounding said top rim and extending downwardly and outwardly from said top rim of said neck, said cap latch having a first horizontally projected base, said neck further including a cap restraint which protrudes outwardly from said neck below said cap latch, said cap restraint circumferentially surrounding said neck, and having a downwardly slanting face and a second horizontally projected base, said cap restraint and said cap latch forming a cavity which circumferentially surrounds said neck between said cap restraint and said cap latch, said neck further including an anchor ceiling which protrudes outwardly from said neck below said cap restraint, said anchor ceiling circumferentially surrounding said neck, said cap restraint and said anchor ceiling forming a groove which circumferentially surrounds said neck between said cap restraint and said anchor ceiling, said neck further including an anchor floor which protrudes outwardly from said neck below said anchor ceiling, said anchor floor circumferentially surrounding said neck, said anchor ceiling and said anchor floor forming a depression which circumferentially surrounds said neck between said anchor ceiling and said anchor floor;
• a closure comprising a cap cover, an anchor band, a double hinge and a tear strip, wherein,
• said cap cover includes a circular top which covers said mouth of said container and has a diameter larger than the outer diameter of said top rim, said cap cover further including an annular sidewall which projects downwardly from said circular top, and which includes a sealing rib which circumferentially surrounds said neck and which projects inwardly from said annular sidewall said sealing rib having an inner diameter which is less than the outer diameter of said cap latch so that said sealing rib tightly engages said cap latch when said closure is closed, said sealing rib projecting into said cavity and at least a portion of said sealing rib being located under said first horizontally projected base when said closure is closed, said circular top including an external sealing flange which protrudes from the underside of said circular top and which circumferentially surrounds said top rim, said cap cover having no other annular protrusion from the underside of said circular top within the circumference of the inner diameter of said top tim which serves to assist in forming a seal with said container, said external sealing flange having an inner diameter which is approximately equal to the outer diameter of said top rim so that, when said closure is closed, said external sealing flange tightly abuts the outer edge of said top rim to provide a liquid seal;
• said anchor band includes an annular band which circumferentially surrounds and covers said depression around said neck, said anchor band being secured in place in said depression by said anchor ceiling and said anchor floor, said anchor ceiling engaging said anchor band to prevent upward movement and said anchor floor engaging said anchor band to prevent downward movement of said anchor band, said anchor band being connected to said double hinge which overlies a portion of said groove, said double hinge being two posts of flexible material being connected by a permanent membrane and having two ends, one end of said double hinge being connected to said anchor band and the other end being connected to said cap cover, each of said posts having an outside surface which faces away from said container and which is more concave than the inside surface of each of said posts;
• said tear strip includes a strip which circumferentially surrounds and covers said groove around said neck except for the portion of said groove under said double hinge, said tear strip having an inwardly protruding locking bead over at least a portion of the interior side of said strip, said locking bead abutting said cap restraint and protruding into said groove so as to cooperatively engage said cap restraint to securely retain said cap cover on said container until said tear strip is removed from said closure, said tear strip being attached to said anchor band and said cap cover by a thin frangible molding, said tear strip having a thin membrane connecting said double hinge to said tear strip so that said tear strip and said double hinge completely cover said groove around said neck.

A tamper evident closure and container combination comprising:

• a container having a neck terminating in a top rim defining a mouth of circular shape, said neck including a cap latch circumferentially surrounding said top rim and extending downwardly and outwardly from said top rim of said neck, said cap latch having a first horizontally projected base, said neck further including a cap restraint which protrudes outwardly from said neck below said cap latch, said cap restraint circumferentially surrounding said neck, and having a downwardly slanting face and a second horizontally projected base, said cap restraint and said cap latch forming a cavity which circumferentially surrounds said neck between said cap restraint and said cap latch, said neck further including an anchor ceiling which protrudes outwardly from said neck below said cap restraint, said anchor ceiling circumferentially surrounding said neck, said cap restraint and said anchor ceiling forming a groove which circumferentially surrounds said neck between said cap restraint and said anchor ceiling, said neck further including an anchor floor which protrudes outwardly from said neck below said anchor ceiling, said anchor floor circumferentially surrounding said neck, said anchor ceiling and said anchor floor forming a depression which circumferentially surrounds said neck between said anchor ceiling and said anchor floor;
• a closure comprising a cap cover, an anchor band, a double hinge and a tear strip, wherein,
• said cap cover includes a circular top which covers said mouth of said container and has a diameter larger than the outer diameter of said top rim, said cap cover further including an annular sidewall which projects downwardly from said circular top, and which includes a sealing rib which circumferentially surrounds said neck and which projects inwardly from said annular sidewall said sealing rib having an inner diameter which is less than the outer diameter of said cap latch so that said sealing rib tightly engages said cap latch when said closure is closed, said sealing rib projecting into said cavity and at least a portion of said sealing rib being located under said first horizontally projected base when said closure is closed, said circular top including an external sealing flange which protrudes from the underside of said circular top and which circumferentially surrounds said top rim, said cap cover having no other annular protrusion from the underside of said circular top within the inner diameter of said top rim which serves to assist in forming a seal with said container, said external sealing flange having an inner diameter which is approximately equal to the outer diameter of said top rim so that, when said closure is closed, said external sealing flange tightly abuts the outer edge of said top rim to provide a liquid seal;
• said anchor band includes an annular band which circumferentially surrounds and covers said depression around said neck, said anchor band being secured in place in said depression by said anchor ceiling and said anchor floor, said anchor ceiling engaging said anchor band to prevent upward movement and said anchor floor engaging said anchor band to prevent downward movement of said anchor band, said anchor band being connected to said double hinge which overlies a portion of said groove, said double hinge being two posts of flexible material being connected by a permanent membrane and having two ends, one end of said double hinge being connected to said anchor band and the other end being connected to said cap cover, each of said posts having an outside surface which faces away from said container and which is more concave than the inside surface of each of said posts;
• said tear strip includes a strip which circumferentially surrounds and covers said groove around said neck except for the portion of said groove under said double hinge, said tear strip having an inwardly protruding locking bead over at least a portion of the interior side of said strip, said locking bead abutting said cap restraint and protruding into said groove so as to cooperatively engage said cap restraint to securely retain said cap cover on said container until said tear strip is removed from said closure, said tear strip being attached to said anchor band and said cap cover by a thin frangible molding.