US PATENT SUBCLASS 315 / 160
PLURAL POWER SUPPLIES

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

160PLURAL POWER SUPPLIES {8}
161  DF  .~> Plural load devices {3}
167  DF  .~> Plural cathode and/or anode load device {2}
170  DF  .~> Series connected current supplies
171  DF  .~> Discharge device and/or rectifier in one of the supply circuits
172  DF  .~> Periodic switch in one of the supply circuits
173  DF  .~> Condenser in one of the supply circuits
174  DF  .~> Plural diverse pulsating or A.C. supplies
175  DF  .~> Diverse-type current supplies {1}

DEFINITION

Classification: 315/160

(under the class definition) Systems provided with two or more sources of current supply.

(1) Note. The sources of current supply may be of the same or diverse types and each of the sources may supply current to the same load device either simultaneously or alternately or each of the sources may supply current to a separate load device.

(2) Note. To be diverse type current supplies, the current

supplies must differ in some electrical characteristics. Alternating currents of different frequencies, a source of current of constant potential and a source of current of varying potential, a rectified alternating current and a source of direct current, are examples of diverse type current supplies. Where the circuit for supplying the load device with current includes a current modifying means which may be used at selected intervals to modify the current flowing in the supply circuit so that the load device is sometimes supplied with one type of current from the source of supply and is at other times supplied from the same source of supply with the modified current, the system is not included in this subclass or the indented subclasses, but will be found in the appropriate subclasses below.

(3) Note. This subclass does not include systems wherein one source of energy is a storage battery or similar device designed to be charged at least at times from either the other source of supply or from an independent source of current supply. Such systems are considered to include a load device other than a discharge device or lamp and therefore not within the definition of this class and will be found for the most part in Class 307, Electrical Transmission or Interconnection Systems, subclasses 46, 48+, 66+, and 155+, and Class 320, Electricity: Battery or Capacitor Charging or Discharging, having battery charging and/or discharging, per se, many patents disclosing, but not claiming, an additional lamp or discharge device load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

86, for systems including means to supply a load device with current from one source and automatically operated means to substitute a second source of current supply when the first source fails to operate properly, including substitution of a second diverse source. SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems, see (3) Note above.