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:
Aug. 23, 1977
Filed:
Jul. 01, 1976
Applicant:
Inventors:
Mamoru Tsuzurahara, Mobara, JA;
Ichiro Ohara, Mobara, JA;
Assignee:
Hitachi, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3951 ; 315 3953 ; 315 3971 ; 315 3975 ; 219 / ;
Abstract
In a magnetron of the type including a metal cylinder extending through a yoke constituting the magnetic circuit for a magnet and disposed in the path of antenna lead wire extending between an anode electrode and an antenna terminal, and a gasket disposed between the yoke and the metal cylinder, there is provided an annular metallic cushion fitted over the metal cylinder. The cushion has an inner diameter slightly smaller than the outer diameter of the cylinder and is provided with a plurality of radial slits on the inner periphery.