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.

Date of Patent:
Dec. 05, 2023

Filed:

Jul. 31, 2020
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

John Scott Price, Niskayuna, NY (US);

Ye Bai, Niskayuna, NY (US);

Antonio Caiafa, Schenectady, NY (US);

Vasile Bogdan Neculaes, Niskayuna, NY (US);

Uwe Wiedmann, Clifton Park, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 29/68 (2006.01); H01J 37/30 (2006.01); B29C 64/153 (2017.01); B29C 64/273 (2017.01); H01J 37/305 (2006.01); B33Y 30/00 (2015.01);
U.S. Cl.
CPC ...
H01J 29/68 (2013.01); B29C 64/153 (2017.08); B29C 64/273 (2017.08); H01J 37/3002 (2013.01); H01J 37/305 (2013.01); B33Y 30/00 (2014.12); H01J 2237/1415 (2013.01);
Abstract

A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.


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