US PATENT SUBCLASS 340 / 609
.~.~.~.~ Counting

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

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
603  DF  .~.~ Fluent material {7}
606  DF  .~.~.~ Flow rate {5}
609.~.~.~.~ Counting

DEFINITION

Classification: 340/609

Counting:

(under subclass 606) Subject matter wherein the flow rate is determined by counting individual units of the fluent material (i.e., bubbles, drops, and particles).

SEE OR SEARCH CLASS

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

21, for fluid parameter counters with indicators.