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:
May. 22, 2012
Filed:
Jul. 18, 2008
Applicants:
Zoryana Terletska, Hamburg, DE;
Stefan Hauttmann, Buchholz, DE;
Inventors:
Zoryana Terletska, Hamburg, DE;
Stefan Hauttmann, Buchholz, DE;
Assignee:
Koninklijke Philips Electronics NV, Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/15 (2006.01); H01J 19/08 (2006.01); H01K 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thermionic electron emitter () is proposed comprising an emitter part () with a substantially flat electron emission surface () and a bordering surface () adjacent thereto. In order to better absorb main stress loads (L) induced by external forces, the emitter part is provided with an anisotropic polycrystalline material having a crystal grain structure of elongated interlocked grains the longitudinal direction (G) of which is oriented substantially perpendicular to the direction (L) of the main stress loads occurring under normal operating conditions.