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:
Apr. 21, 2015

Filed:

Mar. 12, 2012
Applicants:

Alan Patrick Hickok, Mukwonago, WI (US);

David Charles Helenius, Leominster, MA (US);

Inventors:

Alan Patrick Hickok, Mukwonago, WI (US);

David Charles Helenius, Leominster, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/40 (2006.01); B29C 45/44 (2006.01); B29C 45/36 (2006.01); B29C 33/48 (2006.01); B29L 31/56 (2006.01);
U.S. Cl.
CPC ...
B29C 45/4421 (2013.01); B29C 2045/4078 (2013.01); B29L 2031/565 (2013.01); B29C 45/36 (2013.01); B29C 33/485 (2013.01); Y10S 425/058 (2013.01);
Abstract

An injection molding tool having a collapsible core which is movably mounted with respect to a mold plate. The mold plate is movably mounted with respect to a stripper plate that can be used to eject or remove the molded part from the injection molding tool. A retainer is fixedly positioned with respect to the mold plate so that it contacts at least a portion of a molded part when in a mold position. The retainer can be a sleeve with a through opening within or through which the collapsible core is mounted.


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