Cleaning and liquid contact with solids – Processes – Including application of electrical radiant or wave energy...
Patent
1980-03-21
1981-12-22
Caroff, Marc L.
Cleaning and liquid contact with solids
Processes
Including application of electrical radiant or wave energy...
1510404, 151041R, 151042, 134 8, 324228, B08B 102, B08B 104, B08B 902
Patent
active
043069142
ABSTRACT:
Piping such as oil country tubular goods are passed to an external cleaning apparatus comprising a plurality of rotating brushes for cleaning the pipe exterior. The pipe is transported longitudinally by a conveying apparatus which also causes transverse rotation of the pipe. A brush is contained at the end of a conductive spear and the pipe is passed over the brush while rotating to clean the internal surface thereof. Once the pipe is fully disposed on the spear, electrically conductive clamps attach to the spear just behind the brush. Current is passed through the spear to produce a circumferential magnetic field in the pipe wall which field is later sensed to determine the existence of anomalies in the pipe structure. The pipe is then removed from the spear by movement over the internal cleaning brush caused by activation of the conveying apparatus in a direction opposite to its original motion which again effects cleaning of the inside surface of the pipe.
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patent: 3535624 (1970-10-01), Wood
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patent: 3824646 (1974-07-01), Jai
Caroff Marc L.
Intracoastal Pipe Repair & Supply Co., Inc.
Jacobson Harvey B.
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