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 8875380 B1

Date of Patent:

Nov. 04, 2014

Filed:

Nov. 05, 2010

Process of forming an encapsulated magnet assembly

Applicants:

Konrad Roman Weeber, Rexford, NY (US);

Jeremy Daniel Van Dam, West Coxsackie, NY (US);

Mohamed Ahmed Ali, Katy, TX (US);

Inventors:

Konrad Roman Weeber, Rexford, NY (US);

Jeremy Daniel Van Dam, West Coxsackie, NY (US);

Mohamed Ahmed Ali, Katy, TX (US);

Assignee:

General Electric Company, Niskayuna, NY (US);

Attorney:

Andrew J. Caruso

Primary Examiner:

Minh Trinh

Int. Cl.

CPC ...

H02K 15/00 (2006.01); F16C 32/04 (2006.01); C22C 19/05 (2006.01); C22C 19/07 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/48 (2006.01); C23C 30/00 (2006.01); F16C 35/00 (2006.01); H01F 7/02 (2006.01); H01F 7/20 (2006.01); H02K 7/09 (2006.01); H02K 5/173 (2006.01); H02K 15/12 (2006.01);

U.S. Cl.

CPC ...

F16C 32/047 (2013.01); C22C 19/055 (2013.01); C22C 19/07 (2013.01); C22C 38/001 (2013.01); C22C 38/22 (2013.01); C22C 38/40 (2013.01); C22C 38/42 (2013.01); C22C 38/48 (2013.01); C23C 30/00 (2013.01); F16C 32/0468 (2013.01); F16C 35/00 (2013.01); H01F 7/0221 (2013.01); H01F 7/20 (2013.01); H02K 7/09 (2013.01); F16C 2240/40 (2013.01); F16C 2300/42 (2013.01); H02K 5/1732 (2013.01); H02K 15/12 (2013.01); F16C 2204/52 (2013.01);

Abstract

A process of forming an encapsulated magnet assembly is provided, the process comprising welding a second portion of a housing cover formed of a non-magnetic material to a first portion of a housing cover formed of a magnetic material to provide a welded housing cover and subsequently heat-treating the welded housing cover at a temperature effective to relieve weld stress; disposing a magnet within a housing comprising at least one wall formed of the non-magnetic material and defining at least one aperture; and welding the heat treated welded housing cover to the housing such that the second portion of the housing cover is fixedly attached to the housing wall to hermetically seal the aperture. In one embodiment, the magnet of the encapsulated magnet assembly is a permanent magnet, and in an alternate embodiment an electromagnet. In one embodiment the encapsulated magnet assembly is a component of a stator-rotor assembly.

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