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:
Jun. 10, 1980
Filed:
Sep. 21, 1978
Kaichiro Nakai, Yokohama, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
An internal magnet type magnetron is provided with a pair of permanent magnets which are disposed facing each other in a cylindrical envelope. In a space between the permanent magnets, a cathode is disposed around which a number of vanes extend radially. An output conductor is connected to one of the vanes and is extended through a space around one of the permanent magnets to an output section attached to the envelope. Most of the output conductor part passing through the space around one of the permanent magnets is enclosed by an outer metal tube. An inner tube having a length as large as 1/4 of harmonic wave .lambda.n is disposed in the outer metal tube. The inner and outer tubes are both electrically connected to the envelope.