(under subclass 445) Subject matter in which the sensing means are responsive to physical tension, compression or other stress in a body of material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6, for motor systems having a motor actuated means for maintaining a predetermined tension in a body of material.
460, and the subclasses specified in the Notes thereto, for automatically controlled motor systems having sensing means responsive to stresses due to waves of compression and rarefaction in sound transmitting mediums and bodies (e.g., sound, mechanical vibration).
471, for automatically controlled motor systems having sensing means responsive to thermal stresses.
481, for automatically controlled motor systems having sensing means responsive to stresses in fluids or granular material due to the pressure in, fluid or material.
