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:
May. 08, 1979
Filed:
Oct. 07, 1977
Franz Gross, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A travelling-wave tube with improved heat dissipation characteristics, having a helical delay line disposed between an electron-beam generating system and an electron-beam receiver, with the helical delay line being supported by a plurality of retaining members, at least one of which is made out of a material different from the remaining members, the latter being made out of quartz and the first mentioned member being made of a material that has a better heat conducting capacity than the quartz rods, at least in radial direction, and has a dielectric constant that does not differ sufficiently from that of quartz to materially effect the gain of the tube or dispersion curve of the signal wave.