US PATENT SUBCLASS 368 / 107
.~ Electrical or electromechanical


Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

89  DF  TIME INTERVAL {6}
107.~ Electrical or electromechanical {3}
108  DF  .~.~> For predetermined interval {1}
110  DF  .~.~> Mechanically actuated stop time type {2}
113  DF  .~.~> Stop time type {5}


DEFINITION

Classification: 368/107

Electrical or electromechanical:

(under subclass 89) Subject matter wherein the timing means operates by electrical or electromechanical means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89+, especially 97+ and 101+ for mechanically-operated time interval-timing means.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

1+, for miscellaneous phase or time discriminating circuits, subclasses 141+ for miscellaneous synchronizing circuits, subclasses 231+ for miscellaneous phase shift circuits, subclasses 263+ for miscellaneous delay circuits, and subclasses 291+ for miscellaneous pulse or clock waveform generation.

342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation), 61+, and 73+ for systems in which the time interval between transmission and reception of a returned radio wave is determined. Those systems determine, for example, the distance or range of an object from the transmission-reception station.

377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems, for pulse counters and pulse counting systems especially

20, for pulse counters used for measuring time combined with measurement of another parameter.