Patent ID: 7138082

Claim:
A method of making a plastic container having a threaded wide-mouth finish, which comprises the steps of: (a) providing a preform of molded plastic construction, (b) placing said preform in a mold cavity having a first portion for forming a container body, a second portion adjacent to said first portion for forming a cylindrical finish wall without threads, and a third portion adjacent to said second portion for forming a trim moil, (c) expanding said preform within said cavity to form a one-piece intermediate product that includes a body, a cylindrical wide-mouth finish wall having a diameter less than that of the body and without threads, and a trim moil, (d) removing said intermediate product from said mold cavity, (e) removing said trim moil, and (f) forming at least one thread on said cylindrical wide-mouth finish wall by engaging said cylindrical finish wall with at least one thread-forming tool.