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. 31, 1979
Filed:
Jan. 23, 1978
Applicant:
Inventor:
Norio Tashiro, Yokohama, JP;
Assignee:
Tokyo Shibaura Electric Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3951 ; 315 3775 ; 315 85 ; 333181 ;
Abstract
A high frequency electromagnetic energy absorber disposed near a cathode holder in an evacuated envelope of a magnetron so as to attenuate high frequency noise leaking through the cathode terminal of the magnetron. The absorber is in thermal contact with a member connected to the anode cylinder of the tube to conduct heat generated in the tube, whereby overheating of the tube can be prevented. By combining the absorber with another high frequency attenuating element, the attenuating effect can be increased.