Incandescent lamp unit

Details Incandescent lamp unit Incandescent lamp unit

1987-06-18

1988-08-09

Moore, David K.

Electric lamp and discharge devices

With envelope

Having base and connector

313315, 313317, H01J 548

Patent

active

047630388

ABSTRACT:
In an incandescent lamp unit, a base assembly of a rectangular section and which holds the pinched portion of the bulb comprises a first and second bases. The first base has formed therein a first opening in which said pinched portion can be introduced and first lug members extending from the edges of the first opening and which abut the upper portion of the pinched portion to limit the latter from moving longitudinally and laterally. On the other hand, the second base is so made as to be attached to the first base and has formed therein a second opening in which the pinched portion can be introduced, and it is also provided with second lug members extending obliquely and downwardly from the second opening and which abut the lower portion of the pinched portion to limit the latter from moving in the vertical plane. Since the second lug members are formed on the second base independently of the first lug members, the length of the arm supporting the pinched portion can be increased independently of the width of the pinched portion, and so the pinched portion can be stably held.

REFERENCES:
patent: 3262001 (1966-07-01), Rijckeart
patent: 4013335 (1977-03-01), Varkonyi et al.
patent: 4295076 (1981-10-01), Eckhardt et al.
patent: 4489252 (1984-12-01), Eckhardt

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