Pipe joints or couplings – With casing – lining or protector
Patent
1990-05-01
1992-02-25
Arola, Dave W.
Pipe joints or couplings
With casing, lining or protector
285 55, 285342, 285351, 285369, F16L 1112
Patent
active
050907387
ABSTRACT:
An improved method of coating a pipe coupling with a corrosion resistant polymeric coating includes coating an entire coupling, then simultaneously forming an upstanding flange on the coupling body when, in the parting process, the body and nut are separated. The improved coupling is adapted to utilize a moisture barrier between thee nut and the flange.
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Sketches, provided by the inventor's assignee, showing Previous Coating Method, p. 1.
Arola Dave W.
Dresser Industries Inc.
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