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. 30, 1976
Filed:
Apr. 11, 1975
Nippon Electric Company, Ltd., Tokyo, JA;
Abstract
Shielding means for preventing the emission of microwave radiation from microwave tubes which are typically comprised of an electron gun source, an intermediate body section and a collector section electrically isolated from the adjacent body section by means of a ceramic seal. A metallic shield has one end connected to the body section (or the collector section) and has its other end spaced from the collector section (or body section). An insulation layer is interposed in the gap space between the shield and the collector section (or body section). A microwave energy-lossy body is arranged in contact with one or both sides of the insulation layer to absorb microwave radiation transmitted along the insulation layer so as to prevent emission of potentially harmful microwave energy from the tube. The insulation layer may comprise either a linear or elongated tortuous undulating path. The shielding means may further be enclosed in an outer waterproof insulation layer to maintain the integrity of the desirable electric insulation properties between the body section and the collector section.