US PATENT SUBCLASS 361 / 168.1
.~.~.~ Pulse responsive

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
166  DF  .~.~ Plural relays or solenoids sequentially operated {2}
168.1.~.~.~ Pulse responsive {1}
169.1  DF  .~.~.~.~> Including electronic element

DEFINITION

Classification: 361/168.1

Pulse responsive:

(under subclass 166) Subject matter wherein the predetermined sequence of operation of the relays or solenoids are controlled by a drive circuit or device which responds to a voltage pulse circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

186, for pulse responsive control circuits.

SEE OR SEARCH CLASS

329, Demodulators,

311+, for pulse demodulators.

340, Communications: Electrical, 825.66, for selective circuits using relay counting chains.

377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,

65, for shift registers using electromechanical relays and subclass 83 for counting chains using relays.