4. Furnaces
  5. Utilizing powdered fuel
  6. Having rotary flow means

DB Riley, Inc.

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Heat recovery steam generating apparatus

Liquid heaters and vaporizers – Supports
Patent

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Heat recovery steam generator

Liquid heaters and vaporizers – Industrial – Waste heat
Patent

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Modular duct liner panel

Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent

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Tilting coal nozzle burner apparatus

Furnaces – Utilizing powdered fuel – Having rotary flow means
Patent

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Variable orifice plate for coal pipes

Furnaces – Fuel feeders – Blower
Patent

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