Methods and apparatus for testing roundness and straightness...

G - Physics – 01 – B

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33/141

G01B 13/00 (2006.01) E21B 17/00 (2006.01) G01B 5/00 (2006.01) G01B 21/00 (2006.01)

Patent

CA 1164203

Abstract A carefully dimensional drift is passed through a pipe section by fluid pressure to assure that the pipe is round and straight and of the right dimensions. The drift is light weight with an elastic contact surface, preferably of 70-D durometer hardness urethane, and thus is easily handled, adaptable to the fluid transit through the pipe and offers very long wear.

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