Steel reinforced pipe

Details Steel reinforced pipe Steel reinforced pipe

1979-11-05

1982-09-28

Bryant, III, James E.

Pipes and tubular conduits

Flexible

Spirally wound material

138125, 138126, 138138, 138143, 138144, 138153, 138172, 138174, 138DIG2, F16L 1108

Patent

active

043513646

ABSTRACT:
A steel reinforced pipe has a structural wall section sandwiched between inner and outer linings. The inner and outer linings each comprise resin-rich layers reinforced with glass or other fibers to impart the desired characteristics to the inner and outer pipe surfaces. The structural wall section comprises three or more structural steel reinforcing strips encapsulated with a structural epoxy resin and helically wound in the form of helical convolutions one over the other about the pipe axis such that the convolutions of each strip are axially separated from one another, by the epoxy resin, a distance not greater than 3 mm and radially separated from the convolutions of the next adjacent strip, by the epoxy resin, a distance not greater than 0.25 mm. The structural steel reinforcing strips preferably have a width between 100 mm and 200 mm and a thickness between 0.25 mm and 0.75 mm.

REFERENCES:
patent: 1281557 (1918-10-01), Goodal
patent: 1831724 (1931-11-01), Stokes
patent: 2640501 (1953-06-01), Scott et al.

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