The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 09, 2012

Filed:

Oct. 07, 2005
Applicants:

Alan W. Knapper, McCausland, IA (US);

Daniel E. Koranda, Clinton, IA (US);

Michael L. Grinnall, Clinton, IA (US);

Inventors:

Alan W. Knapper, McCausland, IA (US);

Daniel E. Koranda, Clinton, IA (US);

Michael L. Grinnall, Clinton, IA (US);

Assignee:

Custom-Pak, Inc., Clinton, IA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/00 (2006.01); B65D 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

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.


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