(under subclass 4) Apparatus comprising a heat storage mass made up of plural, shaped, modular units of refractory material arranged to form an openwork structure of interconnected passages; or a module, per se, if particularly adapted for use in such a mass.
SEE OR SEARCH CLASS
52, Static Structures (e.g., Buildings),
574, for an assembly of alternating, reversed identical form modules of general utility; subclasses 578+ for a general utility assembly of modules with a discrete edgewise connecting feature; and subclasses 596+ for a module of general utility having inter-relating structure.
202, Distillation: Apparatus,
111, 122, 123, 130, 140, 143, 144, 146, 148, and 267 for regenerative heating devices used in stills. 266, Metallurgical Apparatus,
139, for metallurgical apparatus provided with a gas heater of the heat storage type.
432, Heating,
28, for a process of utilizing or operating a heat storage mass; subclass 51 for the timing, programming or cycling control of heat storage masses; subclass 54, for the intercontrol of heated and heating fluid to a heat storage mass; subclass 70, for a heat storage mass having a lint, dust, or slag separator or collector; subclasses 180+ for a combustion products heated furnace in which the chamber exhaust heats the chamber feed by means of a heat storage mass; subclass 214, for a heat storage mass of solid material combined with a heat generator.
