发明名称 |
Double-based, double-ended, pinch-sealed electric lamp with integral base |
摘要 |
To eliminate the necessity of a separate base for a pinch-sealed lamp having a glass bulb, a sleeve (11) made of the same material as the bulb (1) of the lamp, is formed on an extension of the pinch seal (6), the sleeve retaining a contact element (13) secured in the sleeve, for example by molten glass. The contact element (13) extends essentially transverse to a longitudinal axis (A) of the lamp, is recessed within the interior of the sleeve (11) and preferably has a circumference, which is spaced from said axis (A) by circumferentially different distances, optionally in accordance with a mathematical function which, further optionally, is a periodic function, wherein the minimum spacing of the circumference of said contact element from the axis (A) is less than the inner radius of the sleeve (11).
|
申请公布号 |
US5932955(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19960747619 |
申请日期 |
1996.11.13 |
申请人 |
PATENT-TREUHAND-GESELLSCHAFT F.ELEKTRISCHE GLUEHLAMPEN MBH |
发明人 |
BERGER, HELMUT;EDER, JUERGEN;LIERMANN, HANS |
分类号 |
H01J5/50;H01J5/52;H01K1/24;H01K1/44;(IPC1-7):H01J5/48;H01J1/62;H01J63/04 |
主分类号 |
H01J5/50 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|