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:
Feb. 15, 2005
Filed:
May. 14, 2002
Applicants:
Wilfried Knott, Essen, DE;
Benno Niedermann, Niederglatt, CH;
Manfred Recksik, Essen, DE;
Andreas Weier, Essen, DE;
Inventors:
Wilfried Knott, Essen, DE;
Benno Niedermann, Niederglatt, CH;
Manfred Recksik, Essen, DE;
Andreas Weier, Essen, DE;
Assignee:
Goldschmidt AG, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D027/00 ; B22D019/04 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for producing shaped metal parts, in particular reduced-weight shaped parts made from metallic materials. In this process, a metal body with a surface which is closed on all sides and a hollow structure in the interior is placed into a die as a core and is then surrounded with a metal melt by casting. The surface region of the metal body has a mean density which is higher than the interior of the metal body by a factor of 1.5 to 20.