Air motivated conduit prover apparatus

Details Air motivated conduit prover apparatus Air motivated conduit prover apparatus

1986-06-20

1987-12-29

Taylor, Dennis L.

Hydraulic and earth engineering

Miscellaneous

1510405, 134 2211, 138 97, 2541344, 405154, F16L 100

Patent

active

047157470

ABSTRACT:
Air motivated apparatus for proving the integrity of a conduit includes a flexible cone of substantially the same diameter as the conduit which it is to prove secured to a flexible mandrel having a plurality of elements of different sizes, each element of which has a diameter at least slightly less than the diameter of the conduit, and a cap to seal the conduit and through which air is introduced to move the cone and its mandrel through the conduit. A flexible element, such as cable or rope, is secured to the mandrel and extends through the cap. The cable is used to retrieve the cone and the mandrel or to pull other objects, such as wires, etc., through the conduit.

REFERENCES:
patent: 2980399 (1961-04-01), Littlefield
patent: 3107379 (1963-10-01), Hill
patent: 3495546 (1970-02-01), Brown et al.
patent: 4030702 (1977-06-01), Ware et al.
patent: 4185809 (1980-01-01), Jonnes
patent: 4465220 (1984-08-01), Ledlow et al.
patent: 4498659 (1985-02-01), Brockelsby

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