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.
Patent No.:
Date of Patent:
Dec. 25, 2012
Filed:
May. 17, 2010
Applicants:
Michael L. Farmer, Elwood, IL (US);
Michael R. Riechers, Grant Park, IL (US);
Todd A. Henneike, Bourbonnais, IL (US);
Inventors:
Michael L. Farmer, Elwood, IL (US);
Michael R. Riechers, Grant Park, IL (US);
Todd A. Henneike, Bourbonnais, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/17 (2006.01); B29C 45/37 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plastic part is formed with a hollow portion and an integral evacuation channel extending from the hollow portion to a gate at which plastic for the part was injected. During the injection molding process for the part, the channel and portion to be hollowed are filled with molten plastic, and a gas is injected into the portion to be hollowed to force molten material from the portion to be hollowed back through the channel.