Ventilation duct and insulation panel used for its internal lining

• US 6,161,593 A
• Filed: 08/16/1999
• Issued: 12/19/2000
• Est. Priority Date: 11/03/1995
• Status: Expired due to Term

• Current Assignee: Isover Saint-Gobain
• Original Assignee: Isover Saint-Gobain
• Inventors: Melinand, Alain, Lardillat, Alain, Tigerfeldt, Claes Staffan
• Primary Examiner(s): HOOK, JAMES F
• Application Number:
  US09/374,108
• Time in Patent Office: 491 Days
• Field of Search: 138/120, 138/149, 138/152, 138/155, 138/167
• US Class Current: 138/149
• CPC Class Codes: F16L 59/147 the insulation being located inwardly of the outer surface of the pipe
• CPC Class Codes: F24F 13/0209 characterised by their connecting means, e.g. flanges
• CPC Class Codes: F24F 13/0263 Insulation for air ducts
• CPC Class Codes: F24F 13/0281 Multilayer duct
• CPC Class Codes: F24F 13/24 Means for preventing or suppressing noise

Abstract

A ventilation duct includes an envelope lined on the inside by insulation panels. The panels have a lining on the side of the flow channel of the duct and on at least one part of at least one of transverse edges of the duct. This lining extends over at least one part of each of both sides of the edge and is integrated with the panel. Z shaped sections may be used to hold adjacent panels.

Claims

1. A ventilation duct comprising:

an envelope;

at least one insulation panel lining an interior of said envelope, thereby forming a circulation chamber in which a gas can flow in a flow direction; and

at least one lining integrated with the at least one insulation panel and positioned on at least one part of at least one edge of the at least one insulation panel, this edge extending in a direction transverse to the flow direction and being placed at the side of the circulation chamber, and positioned on at least a part of each of both sides of the at least one insulation panel adjacent the at least one edge.

2. The duct according to claim 1 wherein said at least one lining comprises a protective sheet lining a side of said at least one insulation panel that faces the circulation chamber and at least one part of the at least one edge.

3. The duct according to claim 1 wherein said at least one lining comprises a U section having:

a central part covering one part of one transverse side of the panel;

a wing flange penetrating into the at least one insulation panel; and

another wing flange which covers a part of a side of said at least one insulation panel that faces the circulation chamber.

4. The duct according to claim 1 including at least two consecutive insulation panels in the flow direction on a single side of the envelope, further comprising at least one T shaped section at a junction of said consecutive panels.

5. The duct according to claim 1 wherein said at least one insulation panel comprises mineral wool.

6. An insulation panel used for internal lining of a ventilation duct, comprising:

a panel body formed of an insulating material; and

at least one lining integrated with the body panel and positioned on at least one part of at least one edge of said panel body and on at least a part of each of both sides of the panel body adjacent the at least one edge, the at least one edge extending in a direction transverse to a flow direction within the ventilation duct and placed at a side adjacent a flow in the ventilation duct.