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Apparatus and Method for Discharging Static Electricity on the Internal Surface of Plastic Pipe

Abstract: 

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).

Patent Number: 
5,173,333
Date Of Issue: 
12/22/1992
Inventors: 

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