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:
Mar. 14, 2000
Filed:
Dec. 24, 1997
Applicant:
Inventor:
David Gruber, Sudbury, MA (US);
Assignee:
Wyman Gordon, North Grafton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ; B21D / ;
U.S. Cl.
CPC ...
228193 ; 2281411 ; 228190 ;
Abstract
Articles are fabricated by collating and heating precursor metallic sheets of different compositions. The collated stack of sheets is heated with an applied pressure for a time sufficient to interdiffuse them either partially to produce a controllably modulated structure or completely to produce a homogeneous structure. The sheets may be collated in a form, and may be deformed during or after heating. The composition and structure of the final article is controllably varied from location to location by varying the composition, arrangement, or thickness of the collated sheets. In one embodiment, reinforcements such as fibers are positioned between the sheets.