.~.~ Applied at or for specific intervals or periods of time
DEFINITION
Classification: 455/231
Applied at or for specific intervals or periods of time:
(under subclass 230) Subject matter including means whereby the control voltage or signal is applied to the receiver at or for specific intervals or periods of time.
(1) Note. The time interval determining means may include electrical time constant circuits, mechanical means, or electron tube means.
SEE OR SEARCH CLASS
178, Telegraphy, appropriate subclasses for telegraph receivers combined with control means which may be activated at or for particular time intervals.
200, Electricity: Circuit Makers and Breakers,
35+, for clock actuated switching means.
307, Electrical Transmission or Interconnection Systems, 141+, for time delay or retarded switching systems.
318, Electricity: Motive Power Systems,
443+, for means for periodically, repetitiously, or successively activating a motor control means; and subclasses 445+ for automatic or time delay means in a motor control circuit.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
261+, for miscellaneous output waveform production delay and subclasses 518+ for miscellaneous control circuits.
330, Amplifiers,
9, for amplifiers with periodic switching of the input.
334, Tuners, appropriate subclass for clock controlled tuners, per se.
340, Communications: Electrical,
309.15+, for timer controlled systems.
343, Communications: Radio Wave Antennas,
113, for direction finding receivers which may have time controlling means. 368, Horology: Time Measuring Systems or Devices,
89+, for timepiece time interval measurement, per se.
369, Dynamic Information Storage or Retrieval,
6+, for combined radio and phonograph systems.
370, Multiplex Communications, appropriate subclasses for time division multiplex.
