Patent ID: 7169342
Filing Date: 2007-01-30
Classification: B29C,B29L

Abstract:
1. A process of manufacturing a hollow plastic product with two open ends and a substantially tubular section, the process comprising the steps of: (a) providing a cavity mold part that includes a generally cylindrical portion for forming at least a first outside surface segment of a substantially tubular section of a molded hollow plastic product that has one open end, one closed end and a substantially tubular section; (b) providing a core mold part that includes a generally cylindrical portion for forming at least a first inside surface segment of the substantially tubular section of the molded plastic product; (c) combining the cavity mold part with the core mold part to configure a mold cavity for forming the molded plastic product; (d) injecting plastic material into the mold cavity to form the molded plastic product; (e) separating the core mold part from the cavity mold part while retaining the molded plastic product on the core mold part; (f) removing the molded plastic product from the core mold part; and (g) after step (f) and during the manufacturing process, removing at least a portion of the closed end of the molded plastic product to provide a manufactured hollow plastic product with two open ends and a substantially tubular section; wherein step (f) comprises injecting compressed air into the closed end of the molded product to thereby at least help remove the molded product from the core mold part.