Segmented conduit having a monolithic lining

Details Segmented conduit having a monolithic lining Segmented conduit having a monolithic lining

2007-09-04

2007-09-04

Dunwoody, Aaron (Department: 3679)

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

C285S055000, C285S285100, C156S158000, C156S304200, C156S304600

Reexamination Certificate

active

10887560

ABSTRACT:
A conduit (100) comprising a plurality of conduit segments (112A–112C) each having a body (120A–120C) and a segment lining (136A–136C) made of a lining material. Each body includes a joint face (132A–132C) having secured thereto a portion (140A–140C) of the corresponding segment lining. A monolithic lining (108) is formed from the segment linings by abutting the conduit segments with one another so that the joint faces face one another and the portions of the segment linings contact one another. The portions of the lining on the joint faces are heated to a temperature above the melting point of the lining material so that they fuse with one another so as to form a fusion (148A,148B) located between the joint faces.

REFERENCES:
patent: 2725079 (1955-11-01), Streed et al.
patent: 4127287 (1978-11-01), Davies
patent: 4281859 (1981-08-01), Davies
patent: 4718698 (1988-01-01), Hill
patent: 4883292 (1989-11-01), Kuroki
patent: 5248080 (1993-09-01), Stapleton
patent: 5730472 (1998-03-01), Krause et al.
patent: 6840545 (2005-01-01), Schulte-Ladbeck et al.

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