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:
Jul. 16, 2013
Filed:
Mar. 31, 2010
Antonio Caiafa, Niskayuna, NY (US);
Xi Zhang, Ballston Lake, NY (US);
Vance Robinson, Niskayuna, NY (US);
Sergio Lemaitre, Whitefish Bay, WI (US);
Antonio Caiafa, Niskayuna, NY (US);
Xi Zhang, Ballston Lake, NY (US);
Vance Robinson, Niskayuna, NY (US);
Sergio Lemaitre, Whitefish Bay, WI (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A system and method for controlling the temperature of both an electron emitter and a filament to their lowest possible operating temperature is disclosed. The apparatus includes a filament, an electron emitter heated by the filament to generate an electron beam, and a power supply configured to supply power to each of the filament and the electron emitter. The apparatus also includes a control system to control a supply of power to each of the filament and the electron emitter, with the control system being configured to receive an input indicative of a desired electron emitter operating temperature, cause a desired voltage to be applied between the electron emitter and the filament, and cause a desired voltage to be applied to the filament based on the desired emitter element operating temperature, so as to minimize an operating temperature of the electron emitter and the filament.