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 6706239 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 16, 2004

Filed:

Feb. 05, 2001
Applicant:
Inventors:

David P. Haack, Hendersonville, NC (US);

Chi-Li Lin, Weaverville, NC (US);

Michael Speckert, Asheville, NC (US);

Assignee:

Porvair PLC, , GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/10 ; B22F 3/20 ;
U.S. Cl.
CPC ...
B22F 3/10 ; B22F 3/20 ;
Abstract

A method of co-forming a metal article comprising forming a powdered metal component from a first powdered metal composition, providing a polymeric foam, coating the polymeric foam with a second powdered metal composition to form a coated polymeric foam, placing the coated polymeric foam in contact with the powdered metal component to form a composite, and heat-treating the composite to volatilize the polymeric foam and to solidify the powdered metal component. The powdered metal composition of the powdered metal component can be the same or different than the powdered metal composition used to coat the polymeric foam. The resulting co-formed metal article can be in a variety of configurations including, but not limited to, metal foam on the inside or outside surfaces of a metal tube and metal foam on one or more faces of a metal plate.


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