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. 19, 2016
Filed:
Mar. 19, 2012
Applicants:
David Bernard Fox, Chelmsford, GB;
Timothy Peter Fox, Chelmsford, GB;
Scott Williams, Brightlingsea, GB;
Inventors:
David Bernard Fox, Chelmsford, GB;
Timothy Peter Fox, Chelmsford, GB;
Scott Williams, Brightlingsea, GB;
Assignee:
E2V Technologies (UK) Limited, Chelmsford, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 23/04 (2006.01); H01J 25/50 (2006.01);
U.S. Cl.
CPC ...
H01J 25/50 (2013.01); H01J 23/04 (2013.01);
Abstract
A cathode of a magnetron having a radial extension to accommodate the cathode terminals is supported by arms which have a greater diameter over the region in which they are supported in the glass thimble than over the region of the free ends. This shifts any vibrations to a higher frequency band, which is less liable to be excited in the event the magnetron is moved rapidly as in a linac used for radiotherapy purposes.