Patent ID: 6759639
Filing Date: 2004-07-06
Classification: H01J,H05B

Abstract:
A magnetron for microwave ovens, comprising:a positive polar cylinder; a plurality of vanes which constitute a positive polar section, along with the positive polar cylinder; and a large-diameter strip ring and a small-diameter strip ring which are disposed on an upper portion and a lower portion of the vanes, respectively, and alternatively and electrically connect the vanes to one another, wherein: the large-diameter strip ring has inside and outside diameters which are in a range of 17.1 mm to 18.01 mm and 18.6 mm to 19.6 mm, respectively, the small-diameter strip ring has inside and outside diameters which are in a range of 13.4 mm to 14.4 mm and 14.9 mm to 15.9 mm, respectively, and the large-diameter and small-diameter strip rings have a height which is in a range of 1.55 mm to 1.65 mm.