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

摘要

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.