US PATENT SUBCLASS 374 / 201
.~.~ Expanding fluid

Current as of: June, 1999
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374 /   HD   THERMAL MEASURING AND TESTING

100  DF  TEMPERATURE MEASUREMENT (E.G., THERMOMETER) {13}
187  DF  .~ Mechanical (e.g., expansion or contraction of materials) {10}
201.~.~ Expanding fluid {2}
202  DF  .~.~.~> With distinct pressure transmitting fluid
203  DF  .~.~.~> Bourdon tube or bellows

DEFINITION

Classification: 374/201

Expanding fluid:

(under subclass 187) Subject matter using the temperature responsive expansion or contraction of a confined fluid to determine temperature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

190+, for an indicating tube-type thermometer with an expanding fluid therein.