US PATENT SUBCLASS 425 / 169
WITH INDICATOR, SIGNAL, RECORDER, ILLUMINATOR, OR INSPECTION MEANS

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

169WITH INDICATOR, SIGNAL, RECORDER, ILLUMINATOR, OR INSPECTION MEANS {3}
170  DF  .~> For molding temperature or pressure
171  DF  .~> For determining, observing, or recording position of adjustable element {1}
173  DF  .~> Means permitting visual inspection by operator

DEFINITION

Classification: 425/169

(under the class definition) Apparatus comprising means especially designed to enable an operator to (1) determine the occurrence or extent of a variation in an operating condition or (2) observe or determine the location or condition of an element or material by direct observation.

(1) Note. Included in this and indented subclasses are, for example, meters, thermometers, warning signals, means permitting or aiding observation or normally concealed parts of objects, graduated marking on machine parts, means determining properties of the work either before or after shaping, etc..

SEE OR SEARCH THIS CLASS, SUBCLASS:

135+, for control means responsive to means sensing or detecting a condition.

151+, for safety control means.

155+, for control means responsive to a timer. 162+, for electrical control system.

SEE OR SEARCH CLASS

116, Signals and Indicators, appropriate subclasses for mechanical devices for signalling in the nature of indicating or warning means. Class 116 does not provide for conventional signal or alarm devices combined with art devices where the latter structure is specifically claimed or is materially modified in order to cooperate with the conventional alarm or signal. See the collection of search notes in the class definition of Class 116.

164, Metal Founding,

150.1+, for a signal, indicator or inspection means combined with metal founding apparatus.

340, Communications: Electrical, appropriate subclasses for electrical signalling means, per se.