LandOfFree - US Patents - Listing for Electric lamp and discharge devices: systems

Electric lamp and discharge devices: systems – Regulation of the control current and/or potential applied...

Lamp driving topology

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Induction-type discharge device load

Lamp electronic ballast with a piezoelectric cooling fan

Electric lamp and discharge devices: systems – With signal – indicator – or alarm

Lamp failure detecting device

Electric lamp and discharge devices: systems – With signal – indicator – or alarm – Plural load device systems

Lamp failure detecting device for automobile

Electric lamp and discharge devices: systems – Automatic substitution of the load device or electrode – Plural load devices with selective substitution of load...

Lamp failure detector

Electric lamp and discharge devices: systems – With signal – indicator – or alarm – Plural load device systems

Lamp failure indicating circuit

Electric lamp and discharge devices: systems – With automatic shunt and/or cutout

Lamp fault detection

Electric lamp and discharge devices: systems – Plural series connected load devices – Condenser in the supply circuit

Lamp fault detector

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit

Lamp filament drive scheme providing for control of filament vol

Electric lamp and discharge devices: systems – Plural power supplies – Diverse-type current supplies

Lamp firing apparatus

Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply

Lamp flashing circuit for line generating photoexposure device

Electric lamp and discharge devices: systems – Plural series connected load devices – Christmas lights

Lamp for an external warning light

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Induction-type discharge device load

Lamp for generating high power ultraviolet radiation

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit

Lamp grounding and leakage current detection system

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Plural circuit elements

Lamp having fixed forward phase switching power supply with...

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Discharge device load

Lamp having fixed phase power controller with analog trigger

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Plural circuit elements

Lamp having integral voltage controller

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Load device and transformer

Lamp heat dissipating structure

Electric lamp and discharge devices: systems – Plural load device systems – Electric switch in the supply circuit

Lamp holder including a centrally operated switch by means of ca