.~.~> Automatic cut-out or voltage regulator for the heater circuit
DEFINITION
Classification: 315/115
(under subclass 112) Systems wherein the load device is provided with electrical heating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46, and indented subclasses, for discharge devices which have structurally combined therewith so as to form a unitary device, a filament, electric heater, or resistance, the filament, heater, or resistance being connected in electrical shunt to the discharge electrodes.
49, for discharge devices which have structurally combined therewith, so as to form a unitary device, a filament or electric heater, the filament or heater being connected in electrical series with the discharge device.
94, and indented subclasses, for systems having a discharge device load device, the discharge device having either a thermionic cathode designed to be heated by the passage of an electric current or an indirectly heated cathode, the system including means to apply electric current to the cathode or the cathode heater element.
114, for this subject matter where there are a plurality of load devices in the system.
SEE OR SEARCH CLASS 313, Electric Lamp and Discharge Devices,
15+, for the structure of discharge devices and electric lamps which are provided with an electrical heating means for
