Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1975-11-17
1981-06-16
Bryant, III, James E.
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
29421R, 29450, F16L 914
Patent
active
042731615
ABSTRACT:
An insulated pipe for conducting high and low temperature fluids includes a rigid carrier pipe, a layer of volumetrically compressible insulating material around the O.D. of the carrier pipe, and a protective outer pipe around the insulating layer. The method of making the pipe product includes placing a closed flexible bag around the carrier pipe and the insulating layer, and then drawing a vacuum on the interior of the bag to compress the insulating layer. The outer pipe is slid lengthwise over the compressed insulating layer, and the vacuum is then removed to allow the insulation to partially expand and fill the annulus between the carrier pipe and the outer pipe.
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Ameron Inc.
Bryant III James E.
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