Advanced science.  Applied technology.


Apparatus and Method for Discharging Static Electricity on the Internal Surface of Plastic Pipe: 5,173,333


An apparatus (10) for discharging the internal surface of a plastic pipe (12) provides a saddle (32) having an internal cavity (35) formed therein for permitting threadable engagement of a shaft (24). The shaft (24) has a cutter (40) at one end for penetrating the plastic pipe (12) upon engagement. The shaft (24) also has a nozzle (28) formed adjacent to the cutter (40) for spraying an antistatic fluid (26) into the plastic pipe (12) for discharging the plastic pipe (12).

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Oren Tranbarger; Clarence R. McGinnis; David H. Strain