Joint cover with manifold for duct leak detection system
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United States of America Patent
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Mar 3, 2015
Grant Date -
Jan 26, 2012
app pub date -
Jul 21, 2010
filing date -
Jul 21, 2010
priority date (Note) -
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Abstract
A leak detector for an insulated duct carrying pressurized hot air comprises a cover secured over a circumferential cut in the insulation of the duct, or over a joint connecting duct sections, thereby creating a reservoir of hot air which has leaked from the duct or joint, a manifold block defining a conduit therein in communication with the hot air reservoir and a cap for securing heat sensitive wires to manifold at the end of the conduit such that the hot air from the hot air reservoir impinges directly on the heat sensitive wires. The leak detector includes flow control mechanisms in the body of the manifold block, to prevent false alarms arising from nominal leakage resulting from ordinary operation of the duct system.
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