Heinz C Wernecke

US Patent:

44796307, Oct 30, 1984

Filed:

Feb 14, 1983

Appl. No.:

6/466254

Inventors:

Heinz Wernecke - Southfield MI

Assignee:

Liberty Die Casting Company - Detroit MI

International Classification:

B29C 100
B29F 1022

US Classification:

249142

Abstract:

A mold assembly for use in injection molding an object having an aperture therein, includes first and second interlocking portions which are separable from each other along an axis which is perpendicular to the axis of the aperture. The aperture is formed by an elongated core which is stationarily defined on one of the mold portions and conformingly engages the other mold portion when the mold is closed. The mold portions are drawn into tight, interlocking engagement with each other by wedge-shaped surfaces adjacent the core and respectively defined on the mold portions, thereby preventing flashing from forming over the aperture during the molding process.