.~.~ Movable magnet or magnetic member interacts with magnetic field
DEFINITION
Classification: 324/259
Movable magnet or magnetic member interacts with magnetic field:
(under subclass 244) Subject matter with a movable permanent magnet acting as a magnetic field detector or a movable member of low magnetic reluctance acting as a magnetic field detector which includes material that can be temporarily magnetized by the tested field, the movable magnet's magnetic field or the magnetic field of the temporarily magnetized material reacting to the tested magnetic field by moving until the force between the tested magnetic field and the movable magnet or the movable temporarily magnetized material is zero.
(1) Note. Magnetic polarity testers are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205, for permanent magnet testing.
225, for test apparatus with compensation for a test variable.
256, for magnetometers having a movable energized coil which reacts with a tested magnetic field to indicate the direction or strength of the tested field.
SEE OR SEARCH CLASS
33, Geometrical Instruments, 310, for borehole movable magnetic indicators for direction or inclination, subclass 319 for gyroscopically mounted magnetic compasses, subclass 352 for magnetic compass type directional indicators, and subclasses 355+ for magnetic compasses.
73, Measuring and Testing,
382+, for scales using permanent magnets to determine the force of gravity.
