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:
Feb. 21, 1978
Filed:
Aug. 25, 1976
Applicant:
Inventors:
Assignee:
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JA;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3971 ; 315 3951 ; 315 3975 ;
Abstract
In a magnetron of the permanent-magnet-externally disposed-type wherein a pair of permanent magnets are disposed outside an anode cylinder, a yoke magnetically coupling the pair of permanent magnets to each other is extended along the side wall of an anode cylinder of the magnetron, and this anode cylinder is securely fixed to the yoke. The permanent magnets are each supported between the yoke and a seal plate for sealing the opening of the anode cylinder of the magnetron.