Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Patent
1993-03-23
1995-02-21
Yusko, Donald J.
Electric lamp and discharge devices
With gas or vapor
Envelope with particular structure
361120, 361117, 361 91, 361220, 337 34, 337 28, H01J 506
Patent
active
053919610
ABSTRACT:
A flange, which is integrally formed with the inner surface of the cylindrical member, is located at an intermediate point between the end surface position of the cylindrical member to which the electrode plate of one of the discharge electrodes is sealed and the tip position of the discharge electrode portion of that electrode. Both end surfaces of the cylindrical member are hermetically attached with the discharge electrodes. This arrangement prevents inner flashovers without affecting the discharge characteristics of the discharge tube and also ensures manufacture of discharge tubes with no possibility of gas leakage with very high yields even if the machining precision is not so high.
REFERENCES:
patent: 3588576 (1971-06-01), Kawiecki
patent: 4084208 (1978-04-01), Bazarian et al.
patent: 4631453 (1986-12-01), deSouza et al.
patent: 4661747 (1987-04-01), Gray, Sr.
patent: 4924346 (1990-05-01), Capps
Sato Takashi
Suzuki Takahisa
Tsuchiya Hiromitsu
Richardson Lawrence O.
Yazaki -Corporation
Yusko Donald J.
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