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:
Apr. 01, 2008
Filed:
Sep. 19, 2003
Heinz Nelles, Cagayan de Oro, PH;
Martin Bram, Jülich, DE;
Hans Peter Buchkremer, Heinsberg, DE;
Detlev Stöver, Niederzier, DE;
Heinz Nelles, Cagayan de Oro, PH;
Martin Bram, Jülich, DE;
Hans Peter Buchkremer, Heinsberg, DE;
Detlev Stöver, Niederzier, DE;
Forschungszentrum Julich GmbH, Julich, DE;
Abstract
A porous near-net-shape metallic parts with an open porosity of at least 10% by volume is made by first forming an injectable mass of a metallic powder of stainless steel, Ti, NiTi, or a titanium alloy, at least one thermoplastic binder, and at least one place holder. The mass then injection molded into the shape of the part to be produced, cooled, set in a capillary-active material, and subjected to a first-stage binder removal to produce an open porosity. The place holder is then removed at least partially from the part with a fluid, and the part is subjected to a thermal binder-removing process. Finally the part is sintered.