.~> Members having different coefficients of expansion
(under the class definition) Structure so constructed as to utilize a particular temperature response of a joint component in the forming of the joint or in the preservation of the joint under various temperature conditions.
(1) Note. By particular temperature response is meant a characteristic which is peculiar to the material or configuration of the joint component under consideration and which is not common to material or structures in general. Thus, mere expansion or contraction of a component under varying temperature conditions is not considered a particular temperature response, but a component which expands or contracts, preferentially in a given direction or differentially under varying conditions, or the combination of two components having differential coefficients of expansion, fall within the scope of this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270+, for a joint formed by the solidification of a fusible material.
273, for members connected by a shrunk fit.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices, 317+, for electric lamp and electric space discharge devices provided with lead-in wires sealed into the envelope of the lamp or discharge device and subclasses 334+ for the structure of nonmetallic electrodes or shields which are joined to a lead-wire or connector.