Fire-Rated Modular Duct Assembly Suitable for Exhausting Flammable or Hazardous Gases, Vapours and Other Materials

  • US 20170130984A1
  • Filed: 01/13/2017
  • Published: 05/11/2017
  • Est. Priority Date: 01/06/2012
  • Status: Active Grant
First Claim
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1. A modular fire-rated exhaust duct assembly comprising:

  • two or more exhaust duct modules;

    each of said exhaust duct modules having an inner duct liner and an outer casing, and a void being formed between at least a portion of space between said inner duct liner and said outer casing, said void being configured for receiving an insulation material, and including one or more insulation encapsulation sections configured to connect to said inner duct liner and said outer casing to contain said insulation material in said void;

    a first exterior flange connector, and one end of each of said exhaust duct modules being configured for receiving said first exterior flange connector;

    a second exterior flange connector, and another end of each of said exhaust duct modules being configured for receiving said second exterior flange connector;

    said first and said second exterior flange connectors being configured to form a field assembly junction for coupling respective ends of said exhaust duct modules to form a single exhaust duct run; and

    a joint encasement section configured to be field connectable to each of said exhaust duct modules and encase said junction.

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