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. 21, 1981
Filed:
Jul. 23, 1979
Kenziro Tsutsui, Otsu, JP;
Masamitsu Kakei, Hikone, JP;
New Nippon Electric Co. Ltd., Osaka, JP;
Abstract
PCT No. PCT/JP78/00033 Sec. 371 Date July 30, 1979 Sec. 102(e) Date July 23, 1979 PCT Filed July 27, 1979 PCT Pub. No. WO79/00329 PCT Pub. Date June 14, 1979 A magnetron is constructed with an annular wall anode structure including a cylindrical wall first section of smaller diameter or cross-sectional area, and an annular wall second section of greater cross-sectional area. The first and second sections are integrally formed as part of the magnetic circuit and are interconnected by a drawn or flared wall third section in a preferred embodiment. The input and output elements are coupled to the larger second section for enhanced spacing and cooling. The anode and cathode assemblies are mounted primarily in the first section. Internal and external permanent magnet assemblies and enclosures are described with an internal magnetic pole piece for improved lay-out of lead wires and to permit use of solid rod section permanent magnets.