Composite underground fluid conduit of concrete and steel sectio

Details Composite underground fluid conduit of concrete and steel sectio Composite underground fluid conduit of concrete and steel sectio

1979-02-27

1980-12-30

Bryant, III, James E.

Pipes and tubular conduits

Combined

With trench

138120, 138155, 138175, 138143, 405133, F16L 100

Patent

active

042417627

ABSTRACT:
A composite underground shaft lining assembly particularly suitable for use as a leak proof water conduit is formed with a plurality of annular concrete sections joined together by interposed layers of flexible joint material forming a composite concrete cylinder, with a composite steel cylinder formed of annular steel sections being arranged about the outer cylindrical surface of the composite concrete cylinder. The annular steel sections of the composite steel cylinder are joined together by spring rings located adjacent the flexible joints formed between the annular concrete sections.

REFERENCES:
patent: 2042132 (1936-05-01), Treskow
patent: 3474834 (1969-10-01), Carey
patent: 3742985 (1973-07-01), Rubenstein
patent: 3963056 (1976-06-01), Shibuya et al.

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