Lamp with cement-free base structure

Details Lamp with cement-free base structure Lamp with cement-free base structure

1986-07-23

1988-06-14

Moore, David K.

Electric lamp and discharge devices

With envelope

Having base and connector

313 43, 313 44, 313113, 313315, 362296, H01K 142, F21V 1900

Patent

active

047514213

ABSTRACT:
The bulb (1) of an incandescent lamp, such as a vehicular headlight, is mted on a base structure (3) without cementing, by means of a securing element (2) having two shell-shaped halves (4). Each half (4) has a lug (5) on one side and bent tabs (6) on its other side which engage the lug (5) of the other half (4) to form a cuff around the pinch seal of the lamp and to connect the lamp to the base structure (3), which may be made of plastic. Each half (4) has a flange (8) with a projecting rim (10) whose curvature matches that of a tubular base structure (3). The projecting rim (10) has perforations (9) so that, if a plastic base structure (3) is used, the rim (10) can be connected to the base structure (3) by high-frequency heating, which causes the plastic to permeate the perforations (9) and harden therein.

REFERENCES:
patent: 4146814 (1979-03-01), Wojtowicz
patent: 4569005 (1986-02-01), Bergin et al.
patent: 4569006 (1986-02-01), Bergin et al.
patent: 4623958 (1986-11-01), Van Der Linde et al.
patent: 4641056 (1987-02-01), Sanders et al.
patent: 4647132 (1987-03-01), Mikola
CRC Handbook of Chemistry and Physics, 60th ed., 1980, pp. E392, E10.

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