Glass lamp base with side hole

Details Glass lamp base with side hole Glass lamp base with side hole

1990-04-26

1991-03-05

Desmond, Eugene F.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65 55, 362412, C03B 2326

Patent

active

049974670

ABSTRACT:
A hollow glass lamp base is molded with a sidewall having a tapered, truncated dimple in it. The inner end of the dimple is knocked out, after the base has been annealed, to provide an opening so that the electric cord can extend out through the sidewall of the glass base. The need for an attached metal base and a connecting center tube is obviated.

REFERENCES:
patent: 852129 (1907-04-01), MacBeth
patent: 1040072 (1912-10-01), Wehr
patent: 1121242 (1914-12-01), Giese
patent: 1886634 (1932-11-01), Brown
patent: 2146572 (1939-02-01), Hahn et al.
patent: 3114619 (1963-12-01), Nitsche et al.

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