(under subclass 43) Subject matter wherein there is structure such as a rod or tube to contain and contact a heated solid or fluid or to be immersed into a heated fluid whereby there is a heat exchange from the heated solid or fluid, which causes the structure to emit light or the structure allows the light emitted from a heated solid or fluid to be directly transmitted to a detector which analyzes this light in terms of temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
216, for heat absorbing radiometers of the revolving vane type.
SEE OR SEARCH CLASS
250, Radiant Energy,
227, for light conducting rods conducting light to a photocell.
374, Thermal Measuring and Testing, 126, for a rod or tube with a particular radiating surface combined with a radiation thermometer; and subclass 131 for a radiation conducting rod or fiber bundle combined with a radiation thermometer.
