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:
May. 10, 2005
Filed:
Mar. 25, 2003
Applicants:
Gregory A. Homann, Canton, MI (US);
David Turczynski, Highland, MI (US);
Inventors:
Gregory A. Homann, Canton, MI (US);
David Turczynski, Highland, MI (US);
Assignee:
Lear Corporation, Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D022/00 ;
U.S. Cl.
CPC ...
Abstract
A method and system for producing hollow rib structures for trim components and panels using gas assisted injection molding. Spring biased movable insert members are provided in the mold cavity, particularly at the ends of the structural rib members. After the plastic material is injected into the mold cavity, gas is introduced into the rib members in order to provide hollow channels therein. The displaced resin material forces the insert members to the full cavity positions and completes the formation of the molded plastic article.