Fluorescent lamp having heater circuit disconnect device

Details Fluorescent lamp having heater circuit disconnect device Fluorescent lamp having heater circuit disconnect device

1978-05-24

1979-05-29

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Pulsating or a.c. supply to the cathode or heater circuit

313285, 315 73, 315107, H05B 4118

Patent

active

041568311

ABSTRACT:
A rapid start fluorescent lamp contains a circuit opening device on the cathode mount which opens a short time after lamp starting and stops heater current flow to the cathode. The circuit opening device is a thermostatic element in a sealed glass tube. Additional support is provided for the cathode end that is connected to the circuit opening device in order to prevent damage from vibration.

REFERENCES:
patent: 2330312 (1943-09-01), Raney, Jr.
patent: 2354421 (1944-07-01), Pennybacker et al.
patent: 2462335 (1949-02-01), Reinhardt
patent: 3982153 (1976-09-01), Burdick et al.

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