Patent ID: 6069434
Filing Date: 2000-05-30
Classification: H01T

Abstract:
A spark electrode device comprising:a housing made of an electrically insulating material, providing a cylindrical passage therein, comprising, in sequence and mutually concentrically oriented along a longitudinal axis, a first clearance portion, an interference portion, and a second clearance portion, the first clearance portion being of a smaller diameter than the interference portion, the second clearance portion being no smaller in diameter than the interference portion;an electrode, fitted into the cylindrical passage, and comprising, in sequence and mutually concentrically oriented along the longitudinal axis, an emitter portion, an interconnecting portion, and a input portion, the emitter, interconnecting and input portions each being primarily positioned within the first clearance, interference, andsecond clearance portions respectively, of the housing, the interconnecting portion of the electrode having a tightly-fitting relationship with the interference portion of the cylindrical passageway enabling permanent engagement of the electrode with the housing;the interconnecting portion of the electrode being formed as a sleeve, the emitter portion, and the input portions being fixedly engaged within the interconnection portion and extending outwardly from opposing ends of the housing respectively;the interconnection portion providing a means for positioning the emitter and the input portions within the interconnection portion, the emitter and input portions secured within the interconnection portion by a plurality of inwardly directed impressions in the interconnection portion, the impressions being placed and sized so as to upset an outer surface of the interconnection portion, for causing the interconnection portion to have an interference fit within the interference portion of the housing.