Patent ID: 7069763
Filing Date: 2006-07-04
Classification: B21D

Abstract:
1. A method of forming a container end comprising the steps of: a) providing a strip of metal; b) forming blanks in the metal strip wherein each blank is connected to the strip via a plurality of integral carrying strips between the blanks and the strip; c) forming the blanks into cup form including an open edge; d) forming a dome shaped region in the open edge of the cup form; e) forming a neck with a closed end on the cup form above the dome shaped region; f) piercing the closed end of the neck top to form a neck opening having a lip; g) forming a curl on the neck lip to define a pour opening; h) forming multiple thread lug sections spaced circumferentially around said neck and protruding outward from the neck; and i) severing the formed blanks from the strip.