Marking of lined pipe segments, fittings, or valves

Details Marking of lined pipe segments, fittings, or valves Marking of lined pipe segments, fittings, or valves

1992-05-21

1994-01-11

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428421, 428422, 428522, 428523, 428 3691, 428 3692, F16L 23032

Patent

active

052779513

ABSTRACT:
The subject invention pertains to a thermoplastic-lined pipe segment, fitting, or valve bearing a marking on a tab extending radially from a portion of the thermoplastic liner molded over a flange.

REFERENCES:
patent: 3390442 (1968-07-01), Sosnowski et al.
patent: 3413743 (1968-12-01), Goodhue
patent: 3651191 (1972-03-01), Glatt et al.
patent: 4267863 (1981-05-01), Burelle
patent: 4818314 (1989-04-01), Britain et al.

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