Class 337/23 - With significant heating means

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter including at least one metallic resistance
No. of patents: 3
Last issue date: 12/05/2000

Number	Title	Issue Date
6157286	High voltage current limiting device A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a...	12/05/2000
4851804	Thermo-activating breaker A thermally actuated switch having a bi-metal switch arm carrying a contact, a cooperating contact, a heating resistor and a holding resistor. The switch is enclosed in a sealed housing and circuit connections extend from the switch contacts, heating resi...	07/25/1989
4461976	Discharge lamp starter A discharge lamp starting device employing a thermal switch which comprises main and auxiliary bimetal electrodes respectively thermally bendable in the same direction, and an auxiliary heater for heating the auxiliary bimetal electrode in addition to a m...	07/24/1984

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