Vibration resistant lamp and base, and method of its manufacture

Details Vibration resistant lamp and base, and method of its manufacture Vibration resistant lamp and base, and method of its manufacture

1991-05-01

1993-12-14

Yusko, Donald J.

Electric lamp and discharge devices

With envelope

Having base and connector

313113, 439602, 439616, 445 26, 445 28, 445 44, H01J 548

Patent

active

052706109

ABSTRACT:
To connect a vitreous lamp bulb which has an essentially tubular extension 6) to a base lamp holding structure (2), the holding structure is formed with a cylindrical recess into which the tubular extension is fitted. The material of the lamp holding structure, or at least a portion adjacent the recess, is a high-temperature meltable plastic, and the extension portion is surrounded by a spiral spring or wire loops which, to attach the lamp to the base lamp holding structure, is subjected to a high-frequency electromagnetic field so that, by induction, the plastic surrounding the extension will melt, and embed the spiral or looped wires in the molten plastic while oozing towards the extension portion to securely grip the extension portion in the base lamp holding structure.

REFERENCES:
patent: 4795939 (1989-01-01), Eckhardt et al.
patent: 4982131 (1991-01-01), Meyer et al.

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