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.:

US 6899843 B1

PDF
Full Text
Expired
Date of Patent:
May. 31, 2005

Filed:

Dec. 23, 2003
Applicant:

Gregory A. Homann, Canton, MI (US);

Inventor:

Gregory A. Homann, Canton, 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 plastic injection molding. Movable and floating core members are provided in the mold cavity, particularly adjacent structural rib members. After the plastic material is injected into the mold cavity, the plastic is packed in the mold. The moveable core members are then moved creating a void or opening in the mold cavity. Thereafter, gas or another fluid is introduced into the rib members to provide hollow channels in them. The fluent plastic material in the rib member is displaced into the voids forming integral portions of the completed plastic article.


Find Patent Forward Citations

Homann, Gregory. (2005). Plastic injection molding with moveable mold members forming speaker grill (U.S. Patent No. 6899843). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6899843

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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