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.

Date of Patent:
Jul. 06, 2004

Filed:

Nov. 25, 2002
Applicant:
Inventors:

Jong-Chull Shon, Suwon, KR;

Boris V. Rayskiy, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/72 ;
U.S. Cl.
CPC ...
H05B 6/72 ;
Abstract

A magnetron for use in, for example, microwave ovens, includes a positive polar cylinder, a plurality of vanes, and large-diameter and small-diameter strip rings. The vanes constitute a positive polar section, along with the positive polar cylinder. The large-diameter and small-diameter strip rings are disposed on an upper portion and a lower portion of the vanes, respectively, to alternatively and electrically connect the vanes to one another. The inside and outside diameters of the large-diameter strip ring are in a range of 17.1 mm to 18.01 mm and 18.6 mm to 19.6 mm, respectively. The inside and outside diameters of the small-diameter strip ring are in a range of 13.4 mm to 14.4 mm and 14.9 mm to 15.9 mm, respectively. The height of the large-diameter and small-diameter strip rings is in a range of 1.50 mm to 1.60 mm. The distance between the large-diameter strip ring and the small-diameter strip ring is maintained in an error range of 2.20 mm.


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