AIR FLOW CONTROLLER AND FIRE DAMPER IN AN AIR FLOW DUCT

Title:

AIR FLOW CONTROLLER AND FIRE DAMPER IN AN AIR FLOW DUCT

Document Type and Number:

WIPO Patent Application WO2002043810

Kind Code:

A3

Abstract:

A fire damper in an air duct (2) is formed by a flap (12) which in its closed position bears on a flange (6) which extends inward from the duct wall, to form a seal. The flap (12) is biased to the closed position and held open by a cable (24) which is gripped by a releasable mechanism, such as a ball clutch. The release is triggered by a fusible cartridge (34) which extends into the duct (2).

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Inventors:

PERRIN RICHARD (GB)

Application Number:

PCT/GB2001/005279

Publication Date:

October 24, 2002

Filing Date:

November 29, 2001

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