Connecting structure of externally resin-coated small-diameter m

Details Connecting structure of externally resin-coated small-diameter m Connecting structure of externally resin-coated small-diameter m

1998-07-08

2000-08-29

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

285 55, 285226, 285319, 285322, 2853345, 285353, 285354, 285906, F16L 1112

Patent

active

061096601

ABSTRACT:
A connecting structure of an externally resin-coated small-diameter metallic pipe having an excellent corrosion-resistant property with respect to a mating member is provided. According to the present invention, a resin-uncovered portion of the metallic pipe provided for applying an end processing thereon is completely covered with a protective pipe made of a resin material so that the processed pipe can be connected with the mating member without spoiling its anti-chipping property and an anti-splashing property of the metallic pipe over the entire length thereof. With the exception of the end of the metallic pipe corresponding to the margin at least required for applying an end processing on the pipe, the pipe is covered with an extrusion-moldable thick film-like resin and is connected with a mating member by means of a clamp nut assembled to the pipe end so as to be screw-fitted with the mating member. The connecting structure according to this invention features that one end of a resin pipe is fitted about the above-described resin coated layer on the metallic pipe while the other end of the resin pipe is inserted into, or fitted about, the clamp nut and the resin pipe is fixed to the clamp nut at least at a single portion thereof.

REFERENCES:
patent: 3549176 (1970-12-01), Contreras
patent: 4114929 (1978-09-01), Knapp

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