Method of making multi-walled pipes and storage tanks for toxic

Details Method of making multi-walled pipes and storage tanks for toxic Method of making multi-walled pipes and storage tanks for toxic

1993-05-03

1994-05-03

Woo, Jay H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

73 492, 156188, 156192, 264258, 220445, 220645, B65D 2520

Patent

active

053084233

ABSTRACT:
Improved multi-wall containers and pipes for transporting fluids which have to be protected against leakage and mechanical forces, have an inner and outer wall separated by a continuous foam layer integrated into the containers. Improved strength and resistance to axial inertial pressure is provided by the method of manufacture using chopped glass fibers, continuous windings of glass fibers and suitable polyester resins and circumferential ribs spaced at stress points and integrally incorporated into the containment walls. Vessels produced according to the methods of the invention have a moment of inertia strength of about 4.67 in.sup.4 substantially eliminating torquing, buckling and rupture.

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