Patent ID: 7798357

Claim:
A bottle can member which is made of metal in a cylindrical shape with a bottom section comprising: a thread section on a mouth section comprising: an outer diameter of the thread section which is formed on the mouth section is 28 to 38 mm; a thickness of the thread section is 0.25 to 0.4 mm; an effective thread number of the thread section is 2.0 to 2.5; a height “h” from a starting point of the thread in the thread section to an upper end surface of the mouth section is set to be in a range of 3.6≦h≦4.68 mm; and a curl section including an outermost diameter section, wherein an outer surface of the outermost diameter section defines a uniform and outermost diameter of the curl section with reference to a central axis of the bottle can member, and wherein a tangent plane to the outer surface of the outer most diameter section is substantially parallel to the central axis of the bottle can member.