Apparatus for reinforcing and repairing piping

Coating apparatus – With indicating – testing – inspecting – or measuring means – With means for visual observation

Patent

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Details

118105, 118110, 118408, 118DIG10, 118 72, B05C 708

Patent

active

043088244

ABSTRACT:
A method and apparatus for reinforcing and repairing piping are disclosed for forming a film on the inside of a pipe line. The apparatus includes a film forming device having spaced radially extending front and rear walls which is inserted within the pipe line. When so inserted, the apparatus and the inside surface of the pipe line define an annular space into which film forming material is introduced. This annular space can be used to staddle a cracked portion of the pipe line, a joint or other inadequately sealed areas in which leakage may occur. A film adjusting device comprising a rotary driving element and a rotary film adjusting element are provided and are flexibly connected to the film forming device. The rotary drive device includes a motor and spaced front and rear discs each of which is attached to a plurality of outwardly extending fragments. A hauling device is provided for moving both the film forming device and film adjusting device within the pipe line and an inspection device is provided to assist an operator in locating areas to which the film forming material must be carefully applied. The method comprises inserting the devices within a pipe line, moving them through the pipe line, applying film forming material to the inner surface of the pipe line and stopping the devices at potential leakage portions to properly reinforce these portions with film material.

REFERENCES:
patent: 2095888 (1937-10-01), Perkins
patent: 3022765 (1962-02-01), Xenes
patent: 3037228 (1962-06-01), Cummings
patent: 3039428 (1962-06-01), McLean
patent: 4218989 (1980-08-01), Fujita et al.

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