.~ Sound, supersonic vibration or mechanical vibration
DEFINITION
Classification: 318/460
(under subclass 445) Subject matter in which the sensing means are responsive to noise, sound, or other mechanical vibrations of bodies.
(1) Note. Means for sensing (or which are responsive to) electrostatic or magnetic waves are not included herein, even if the said waves are produced or originated by mechanically vibrating bodies.
(2) Note. Means for sensing compressional waves transmitted by means of solids, liquids, or gases (including natural media such as earth, water, and atmosphere) are included herein regardless of the frequency thereof (i.e., whether audible or supersonic).
SEE OR SEARCH THIS CLASS, SUBCLASS:
128, for motor systems having automatic control of reciprocating or oscillating electric motors in response to
the sound, noise, or vibration in or of the motors or devices actuated thereby.
480, for motor systems having automatic control of the motor in response to radiant energy. SEE OR SEARCH CLASS
340, Communications: Electrical,
825.72, is the generic subclass for systems for the control of apparatus and devices at a distance by means of radio wave energy. See the Search Notes in the class definition of Class 343 for the other classes which provide for means for the control of an apparatus or device by means of compressional waves.
