US PATENT SUBCLASS 324 / 140 R
.~ Plural inputs (e.g., summation, ratio)

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
140 R.~ Plural inputs (e.g., summation, ratio) {3}
141  DF  .~.~> Voltamperes (real or reactive)
142  DF  .~.~> Watts
140 D  DF  .~.~> Ratio

Unofficial Alpha Subclasses: R D

DEFINITION

Classification: 324/140

(under subclass 76) Subject matter having plural inputs to the measuring means.

(1) Note. A single circuit can furnish plural inputs to the measuring means, since a single circuit can carry a voltage and a current independently of each other. Thus, the indented subclasses contain watt meters and volt-ampere meters of the type which are not found in subclasses above.

(2) Note. This subclass includes, for example, ratio meters and summation meters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

62+, for complete resistance measuring systems including, as a part thereof, ratio meters.

SEE OR SEARCH CLASS

340, Communications: Electrical, 870.01+, for telemetering systems for indicating at a remote point the value of a local condition. Note subclasses 870.11+ where the condition at plural localities is sensed. Note subclasses 870.19+ where the value of the condition is coded into a pulse type code.