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. 28, 1981
Filed:
Jun. 12, 1979
Applicant:
Inventor:
John R Bayless, Malibu, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313 29 ; 313 34 ; 313171 ;
Abstract
Orientation independent ignitron 10 has a cooled cathode 28 which carries thin mercury film 58 which is held in place by surface tension forces so that it is independent of orientation. Ignitor 48 starts conduction which continues until mercury exhaustion or shut off by an external circuit. During nonconductive portions of the duty cycle, the mercury recondenses on the cooled cathode 30.