(under subclass 116) Subject matter in which the motor comprises a member which undergoes substantial changes in shape, position and/or dimensions when heated, and means for electrical heating, the member.
(1) Note. When electric current is conducted through the above mentioned member thereby causing the member to become heated, separate heating means are not necessary.
SEE OR SEARCH CLASS
60, Power Plants,
523, for a motor in which a confined unit of mass of gas is heated electrically to produce expansion; subclass 528 for a motor operated by the expansion of a solid mass heated by its resistance to flow of an electrical current; and subclass 513 for a motor operated by the expansion of fluid in an expansible chamber containing an electric heating means.
