(under subclass 1) Method wherein an electric lamp or electric space discharge device is (A) treated by initially subjecting to similar forces and environment substantially duplicating those encountered under real operating conditions or (B) treated for sensitizing or stabilizing purposes which treatment is not provided for in any other class.
(1) Note. For other classes which provide for processes of aging and/or sensitizing an electrode for an electric space discharge device, search Class 148, Metal Treatment, appropriate subclasses, for processes for treating metal electrodes. Class 445 provides only for such metal treatment to age or sensitize electrodes as is not provided for in Class 148. Note especially subclasses 559+ and 625+ which provide for heat treatment metal electrodes containing an electron emissive material, either to bring the electron emissive material to the surface of the electron or to convert the material into a different form (i.e., reducing Th02 content of the electrode to thorium).
SEE OR SEARCH THIS CLASS, SUBCLASS:
3, for methods including testing or adjusting.
22, for combined operations within the class definition.
62, for apparatus having means for simulating real operating conditions and environment.
64, for combined apparatus within the class definition.
