Steam generator, especially high pressure and/or natural circulation steam generator; natural circulation boiler, especially high pressure natural circulation boiler
Class 011: Steam generators, in particular high pressure steam generators and high-speed steam generators; thermal oil circulation heaters for heat transfer; industrial boilers; waste heat boilers for utilizing waste gases; natural circulation boilers; all the above goods, also in particular for combusting primary energy carriers; furnaces for solid, liquid and gaseous fuels, in particular for the above goods; facilities for converting primary energy into usable energy, namely, furnaces, pipes for heating boilers, heat exchangers, circulation heaters and waste heat boilers.; Class 040: Material treatment, namely, treatment of metal; welding.
[ Material processing, namely, metal forming and bending, milling, drilling, turning, grinding, cutting, chamfering and rolling of metal; and welding ]; Electronic control mechanisms, namely, pressure and temperature gauges and sensors and electric control devices used to regulate steam generating and heating and cooling systems; [ Centrifugal pumps and motors for circulating fluids in steam generating systems and in heating and cooling systems ]; [ Building materials, namely, steel, stainless steel, alloyed iron, copper ores and aluminum siding, all for use in building steam generating, heating and cooling systems and piping for vessels, reactors, heat exchangers and heating elements; and metal chimneys ]; Steam generators; industrial dryers for heating and dehumidifying; evaporative air coolers; ventilating exhaust fans; electric heating fans; thermal oil heaters fueled by oil, gas, and solid fuels in the nature of coal, tree bark, sawdust, wood chips, swarf, cane trash, peanut hulls and coffee grounds; heat exchangers not being parts of machines in which the source of heat is electric or an exhaust gas; hot gas generators for direct heating of dryers using gaseous, fluid and solid fuels, as well as combustible waste in solid form
Steam generators, especially high-pressure and/or gravity circulation steam generators; gravity circulation boilers, especially high-pressure gravity circulation boilers as parts of steam generators
Class 011: Steam generators, in particular high-pressure steam generators and high-speed steam generators; thermal oil circulation heaters for generating heat; [ furnaces for solid, liquid and gaseous fuels; ] heat transfer media, heat exchangers; filters and fittings therefor
