Metal container with a carrier ring and methods of making the same

A metal container comprising:

• a base;
• an open top end;
• and
• a unitary sidewall bridging the base and the open top end, the sidewall including
• a first portion having a first diameter,
• a neck having a second diameter, the second diameter being smaller than the first diameter, a first end of the neck terminating at the open top end, and
• a curved shoulder bridging the first portion and a second end of the neck,
• the neck including
• a carrier ring forming a protrusion in the sidewall, the carrier ring including a top and a bottom sidewall portion, interior surfaces of the top and bottom sidewall portions being in contact with one another, the carrier ring having a second diameter, the second diameter being about 7% to about 45% greater than a diameter of the open top end,
• a first groove adjacent to the top sidewall portion of the carrier ring, and
• a second groove adjacent to the bottom sidewall portion of the carrier ring, the neck having a wall thickness of between about 0.025 and 0.356 mm, wherein the second groove has a fourth diameter, the fourth diameter being smaller than the diameter of the open top end.

A metal container comprising:

• a base;
• an open top end;
• and
• a unitary sidewall bridging the base and the open top end, the sidewall including
• a first portion having a first diameter,
• a neck having a second diameter, the second diameter being smaller than the first diameter, a first end of the neck terminating at the open top end, and
• a curved shoulder bridging the first portion and a second end of the neck,
• the neck including
• a carrier ring forming a protrusion in the sidewall, the carrier ring including a top and a bottom sidewall portion, interior surfaces of the top and bottom sidewall portions being in contact with one another, the carrier ring having a second diameter, the second diameter being about 7% to about 45% greater than a diameter of the open top end,
• a first groove adjacent to the top sidewall portion of the carrier ring, and
• a second groove adjacent to the bottom sidewall portion of the carrier ring, the neck having a wall thickness of between about 0.025 and 0.356 mm,
• wherein a thickness of an outer portion of the carrier ring is greater than a thickness of an inner portion of the carrier ring.