Electric lamp bulb attachment arrangement

Details Electric lamp bulb attachment arrangement Electric lamp bulb attachment arrangement

1987-01-21

1989-01-03

Moore, David K.

Electric lamp and discharge devices

With envelope

Having base and connector

313315, 362368, H01J 548

Patent

active

047959398

ABSTRACT:
To permit connection of a high temperature resistant plastic material forg a bulb holder element (4, 15, 20) to which a light bulb (1, 14, 19) is attached in the tubular opening of the base structure (5, 16), the bulb holder element is essentially barrel-shaped to permit alignment of the bulb with respect to the base structure, and subsequent connection by welding together the plastic base structure with the plastic bulb holder element by exposure to a high-frequency field. To cause melting of the plastic, ferromagnetic material, typically a nickel-iron alloy, is located between the bulb holder element and the base structure, for example in form of a ring (11) snapped into a groove (12) formed on the holder element.

REFERENCES:
patent: 4386292 (1983-05-01), Rothwell et al.
patent: 4533851 (1985-08-01), Block et al.
patent: 4569006 (1986-02-01), Bergin et al.
patent: 4609977 (1986-09-01), Eckhardt et al.
patent: 4722039 (1988-01-01), Gaugel

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