Double-containment thermoplastic pipe assembly
AssigneeAsahi/America, Inc.
InventorChristopher G. Ziu
Life of this patent
Estimating the term…
Abstract
A double-containment thermoplastic pipe assembly is provided to prevent against potentially hazardous spills or leaks of chemicals and the like. The double-containment pipe assembly comprises a containment pipe and at least one carrier pipe disposed therein. The carrier pipe is retained in spaced relationship to the containment pipe by support clips with outwardly extending radially aligned legs. Restraint couplings may be disposed at selected locations along the double-containment pipe assembly. The restraint couplings include a carrier portion, a containment portion and a connecting portion extending therebetween. Double-containment pipe fittings also are provided to ensure complete double-containment protection throughout an entire double-containment pipe assembly.
Claims13
A double-containment thermoplastic pipe assembly comprising:
- a plurality of substantially linear containment pipe sections secured to one another in end to end relationship;
- at least one substantially linear array of carrier pipes desposed within said containment pipes, said array of carrier pipes comprising a plurality of substantially linear carrier pipe sections secured in end to end relationship;
- a plurality of spaced apart support means disposed intermediate said carrier and containment pipes for keeping said carrier pipe in spaced generally parallel relationship to said containment pipe, each said support means comprising a generally arcuate mounting means extending through an arc of less than 360.degree. for partly surrounding and engaging said carrier pipe and means extending outwardly from said mounting means and into supporting contact with said containment pipe;
- and
- a plurality of spaced apart restraint couplings, each said restraint coupling comprising at least one carrier pipe portion and a containment pipe portion disposed respectively to be secured in end to end relationship with corresponding carrier and containment pipes, each said restraint coupling further comprising a connecting portion rigidly joining the carrier and containment portions thereof.
Dependencies are inferred from the claim text.