Lining of "Tees" and "Wyes" in pipelines or passageways

CAFC
  • US 5,927,341 A
  • Filed: 03/25/1996
  • Issued: 07/27/1999
  • Est. Priority Date: 09/25/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A lining for sealing the region of a lateral/main pipe connection, comprising a length of main pipe tubular structure for application to the full circumference of the surface of the main pipe on both sides of the lateral connection pipe, said length of main pipe tubular structure having a wall aperture to be aligned with the lateral pipe, and a lateral extension tubular structure bonded to the main pipe tubular structure at the aperture and extending from said aperture into the lateral pipe, said lateral tubular structure and main pipe tubular structure, each formed of a tubular segment having at least one layer of a resin absorbent material which in use is impregnated with curable synthetic resin.

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