US PATENT SUBCLASS 340 / 540
.~ Specific condition

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540.~ Specific condition {18}
541  DF  .~.~> Intrusion detection {8}
568.1  DF  .~.~> Article placement or removal (e.g., anti-theft) {9}
573.1  DF  .~.~> Human or animal {9}
577  DF  .~.~> Flame {2}
580  DF  .~.~> Ice formation {3}
584  DF  .~.~> Thermal {8}
600  DF  .~.~> Radiant energy
601  DF  .~.~> Meteorological condition {1}
603  DF  .~.~> Fluent material {7}
635  DF  .~.~> Condition of electrical apparatus {15}
657  DF  .~.~> Electrical characteristic {4}
665  DF  .~.~> Force or stress {2}
669  DF  .~.~> Acceleration
670  DF  .~.~> Velocity {1}
673  DF  .~.~> Article transport {3}
678  DF  .~.~> Of geometrical gauge
679  DF  .~.~> Machine condition {6}
686.1  DF  .~.~> Position responsive {9}

DEFINITION

Classification: 340/540

Specific condition:

(under subclass 500) Subject matter distinguished by the particular detected condition in response to which the signal is produced.

(1) Note. This subclass includes, for example, alarms which are automatically operated in response to some condition, such as excessive temperature.

SEE OR SEARCH CLASS

42, Firearms,

1.01, for firearms with miscellaneous indicators.

91, Motors: Expansible Chamber Type,

1, with signal or indicator. 92, Expansible Chamber Devices,

5, with signal or indicator.

116, Signals and Indicators, appropriate subclasses, especially

67+, and 200+ for nonelectrical alarms and indicators which are automatically responsive to a condition.

200, Electricity: Circuit Makers and Breakers, appropriate subclasses under

52, for circuit makers and breakers whose controllers are responsive to a condition.

234, Selective Cutting (e.g., Punching,

22+, for a selective cutting device having means responsive to a given operating condition (or malfunction) to impose an auxiliary control thereon.

307, Electrical Transmission or Interconnection Systems,

86+, 97, 99, 116+, and 152 for electrical transmission and switching systems which are responsive to a condition.

315, Electric Lamp and Discharge Devices: Systems,

129+, for electric lamp or discharge systems with a signal, indicator, or alarm. 331, Oscillators,

65+, for electric oscillation generators combined with means responsive to an external physical Condition.

336, Inductor Devices,

30, for inductors with condition responsive adjusting means.

338, Electrical Resistors,

13+, for resistors whose resistance value is responsive to a condition.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protection systems which may be condition responsive; subclasses 170+ for electrical relay systems; and subclass 280 for capacitors which are automatically responsive or nonresponsive to a condition.