Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1995-05-16
1998-06-09
Brinson, Patrick F.
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
138157, 138155, 138DIG4, F16L 914
Patent
active
057621098
ABSTRACT:
A duct for gas flow applications is provided with a replaceable insulating duct liner that can be axially inserted into and removed from a tubular shell of the duct. Preferably, the replaceable insulating duct liners comprise fibrous and/or cellular insulation materials. Duct systems using duct sections with replaceable insulating duct liners can be maintained by removing duct sections from the system; removing the replaceable insulating duct liners from the duct sections; inserting new replaceable insulating duct liners into the duct sections; and replacing the duct sections into the duct system.
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Matthews Kent R.
Schakel Eric G.
Brinson Patrick F.
Johns Manville International Inc.
Touslee Robert D.
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