US PATENT SUBCLASS 315 / 95
.~ Plural load device systems

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

94  DF  WITH CATHODE OR CATHODE HEATER SUPPLY CIRCUIT {6}
95.~ Plural load device systems {2}
96  DF  .~.~> Series connected cathodes or heaters
97  DF  .~.~> Pulsating or A.C. supply to the cathode or heater circuit

DEFINITION

Classification: 315/95

(under subclass 94) Systems having a plurality of discharge device load devices connected in the system.

(1) Note. Where the circuit has a single discharge device with a supply circuit in which there is a second discharge device which is limited in the claims to being of the gas or vapor type, the patent is classified as a plural discharge device load system even though the second discharge device is in controlling relation to the first, see the main class definition section (9). Conversely where the second discharge device is claimed broadly (not being limited in the claims to being of the gas or vapor type) it is not treated as a second load device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113, for plural load device systems provided with means for modifying the temperature of the load devices.

324, and the subclasses specified in the notes to the definition of that subclass, for other plural discharge device load device systems.