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. 31, 2005
Filed:
Jan. 02, 2002
K. Ranji Vaidyanathan, Tucson, AZ (US);
Joseph Walish, Tucson, AZ (US);
Mark Fox, Tucson, AZ (US);
John W. Gillespie, Jr., Hockessin, DE (US);
Shridhar Yarlagadda, Newark, DE (US);
Michael R. Effinger, Fayetteville, TN (US);
Anthony C. Mulligan, Tucson, AZ (US);
Mark J. Rigali, Tucson, AZ (US);
K. Ranji Vaidyanathan, Tucson, AZ (US);
Joseph Walish, Tucson, AZ (US);
Mark Fox, Tucson, AZ (US);
John W. Gillespie, Jr., Hockessin, DE (US);
Shridhar Yarlagadda, Newark, DE (US);
Michael R. Effinger, Fayetteville, TN (US);
Anthony C. Mulligan, Tucson, AZ (US);
Mark J. Rigali, Tucson, AZ (US);
Advanced Ceramics Research, Inc., Tucson, AZ (US);
Abstract
A process for continuous composite coextrusion comprising: (a) forming first a material-laden composition comprising a thermoplastic polymer and at least about 40 volume % of a ceramic or metallic particulate in a manner such that the composition has a substantially cylindrical geometry and thus can be used as a substantially cylindrical feed rod; (b) forming a hole down the symmetrical axis of the feed rod; (c) inserting the start of a continuous spool of ceramic fiber, metal fiber or carbon fiber through the hole in the feed rod; (d) extruding the feed rod and spool simultaneously to form a continuous filament consisting of a green matrix material completely surrounding a dense fiber reinforcement and said filament having an average diameter that is less than the average diameter of the feed rod; and (e) depositing the continuous filament into a desired architecture which preferably is determined from specific loading conditions of the desired object and CAD design of the object to provide a green fiber reinforced composite object.