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:
Nov. 10, 1981
Filed:
Jan. 28, 1980
Norio Tashiro, Yokohama, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
A magnetron is provided with an anode cylinder having a number of resonance cavities defined in the anode cylinder and a cathode disposed along the axis of the anode cylinder. The anode cylinder is hermetically sealed by cover plates. An antenna section electrically connected to the resonance cavities is mounted on one of the cover plates, and a cylindrical envelope of a cathode stem is mounted on the other cover plate. Within the cylindrical envelope are disposed a rod holder electrically connected to one end of the cathode and a cylindrical holder connected to the other end of the cathode, the rod holder extending through the cylindrical holder, and the cathode is supported by both the holders. Within the cylindrical envelope is further disposed a dielectric cylinder, through which the cylindrical holder extends. The dielectric cylinder is provided with an outer electrical conductive metal layer formed on its outer surface and extending from one end of its and also with an inner electrical conductive metal layer formed on its inner surface and extending from the other end of it, these inner and outer metal layers partly opposing each other. The outer metal layer is electrically connected to the cathode, and the inner metal layer is electrically connected to the anode cylinder.