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:
Sep. 02, 2014
Filed:
Dec. 17, 2010
Applicant:
Markus Roland Wiebe, Basel, CH;
Inventor:
Markus Roland Wiebe, Basel, CH;
Assignee:
Alstom Technology Ltd, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/22 (2006.01); H02K 11/00 (2006.01); H02K 5/124 (2006.01);
U.S. Cl.
CPC ...
H02K 5/124 (2013.01); H02K 5/225 (2013.01);
Abstract
A sealed electric generator includes a casing () housing a stator () and a rotor () connected to a shaft (), wherein the shaft () is provided with a duct housing and a lead () carrying electric power from an exciter () to rotor field windings (). The duct has a sealing unit for preventing gas contained inside of the casing () from reaching the exciter (). The sealing unit has first and second seals () defining between them a chamber (), such that gas that leaks past a seal () enters the chamber ().