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:
Apr. 07, 1987
Filed:
Oct. 15, 1984
Applicant:
Inventor:
Kurt Amboss, Pacific Palisades, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315-538 ; 174 5061 ; 174 5063 ; 228121 ; 228175 ; 228178 ;
Abstract
Seal (40) between travelling-wave tube electrodes (32 and 34) includes an inner hermetic seal ring (50) for providing vacuum sealing and an outer ring (52) which shares the mechanical stresses due to changes in temperature.