Custom-pak, Inc.

Daniel E Koranda

Michael Grinnall

Alan Walter Knapper

James M Wiese

John McGarry

Clay Bahnsen

Jason George

James W Wiese

Dennis Behr

Duane Diedrich

Michael L Grinnall

Michael L Grinall

A blow molded structure and having ribs formed therein, the ribs defined by a recess in one wall of the blow molded structure that defines two sidewalls on either side of a joint, the joint being a weld between the two opposing walls of the blow molded structure. The ribs are arranged in intersecting paths and a passage is defined in the interior cavity of the blow molded structure at the intersection of two ribs such that fluid flows through the passage during molding.

Structural weld pattern

A system for making blow molded receptacles is disclosed generally comprising two mold portions that, when positioned adjacent each other, at least partially enclose a cavity defined by a molding surface, against which the walls of a blow molded receptacle are blown. One of the portions is a mold core, which has a base surface and a raised portion extending out from the base surface into the cavity. The raised portion has an outer surface and a side surface, which results in a corresponding, inner sidewall on the blow-molded receptacle. The raised portion houses a punch partly disposed in an opening in the side surface for punching a hole in the sidewall. In some embodiments, the side surface is substantially perpendicular to the seal between the two mold portions, and an actuator displaces the punch in a direction substantially parallel to the seam.

Blow molded receptacle and system for making same

A method and apparatus for blow molding a case for housing an object, such as a tool, is disclosed generally comprising first and second mold portions located adjacent each other to create separate cavities for forming base and lid portions of a case and a punch for each portion corresponding to the outline of an object. In certain embodiments, the punch protrudes into the cavity during blow molding to create a sidewall to facilitate a press fit. In some embodiments, additional punches and/or recesses are provided to produce additional apertures or flanges in the walls of the tool case.

Method and apparatus for creating a blow molded case

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Clinton, IA, United States of America

Daniel E Koranda