Method of making an electric lamp with a high torque threaded ba

Details Method of making an electric lamp with a high torque threaded ba Method of making an electric lamp with a high torque threaded ba

1992-09-23

1994-05-03

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

313318, H01J 934

Patent

active

053082737

ABSTRACT:
A method of making an electric lamp with high torque threaded base having lamp envelope, threaded base, and light source is disclosed. The electric lamp with high torque threaded base may be formed by making a lamp envelope with a ring of depressions extending around the lamp opening. A threaded brass base may then be rolled into the depressions, locking the threaded base to the lamp envelope. High temperature melting of the glass is then unnecessary, and expensive, or messy glues are unnecessary.

REFERENCES:
patent: 4485326 (1984-11-01), Hellwig et al.
patent: 4647809 (1987-03-01), Blaisdell et al.

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