Electric lamp and method of manufacturing same

Details Electric lamp and method of manufacturing same Electric lamp and method of manufacturing same

1987-01-09

1991-01-29

Wieder, Kenneth

Electric lamp and discharge devices

With envelope

Having base and connector

439611, 445 27, H01J 526, H01J 934, H01K 146

Patent

active

049889125

ABSTRACT:
The electric lamp has a lamp vessel (1) having an end portion (3) which is fixed in the lamp cap (5) by means of polyetherimide (8) as a thermoplastic synthetic resin, which has adhered both to the lamp vessel and to the lamp cap. The end portion (3) can have non-circular cross-sections where it is in contact with the synthetic resin (8). A current supply wire (11) can be clamped between the synthetic resin (8) and the sheath portion (6) of the lamp cap (5) in order to establish electrical contact therewith. The lamp can be assembled by arranging in the hot state of the end portion (3) a polyetherimide ring (8) around this end portion (3) and by providing the lamp cap (5) in the hot state around the polyetherimide ring (8).

REFERENCES:
patent: 2850397 (1958-09-01), Dereich
patent: 3622947 (1971-11-01), Griffin
patent: 3631379 (1971-12-01), Wright
patent: 4521485 (1985-06-01), Tondre et al.

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