.~.~ Sensor supported, positioned, or moved within pipe {1}
221
.~.~.~ Borehole pipe testing
DEFINITION
Classification: 324/221
Borehole pipe testing:
(under subclass 220) Subject matter wherein the tested pipe is a casing or a borehole in the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
345, for geological and subsurface testing for materials by a magnetic test.
SEE OR SEARCH CLASS
33, Geometrical Instruments,
302+, for borehole interior study processes, and subclasses 304+ for borehole direction or inclination meters.
73, Measuring and Testing, 152.01+, for borehole and drilling study apparatus.
166, Wells,
64, for time or distance measuring, subclass 65.1 for electrical means combined with a well, and subclasses 250.01+ for processes involving indicating, testing, measuring, or locating within a well.
175, Boring or Penetrating the Earth,
4.51, for boring or penetrating with orienting or indicting.
250, Radiant Energy,
253+, for geological testing or irradiating with radiant energy.
361, Electricity: Electrical Systems and Devices,
248+, for igniting systems for explosive devices within a well bore.
367, Communications, Electrical: Acoustic Wave System and Devices,
14+, for compressional wave geophysical systems, and subclass 86 for well bore electrical communications.
436, Chemistry: Analytical and Immunological Testing, 25+, for geochemical exploration.
