Pipe tapping apparatus

Fluid handling – With repair – tapping – assembly – or disassembly means – Tapping a pipe – keg – or apertured tank under pressure

Reexamination Certificate

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Details

C285S288200, C285S288110

Reexamination Certificate

active

07082960

ABSTRACT:
The present invention provides a pipe tapping apparatus to couple new pipes to an existing pipe. The pipe tapping apparatus includes a base pipe, having a saddle-shaped socket part to be in close contact with the main pipe to pass a fluid therein; and a bending part coupled to the saddle-shaped socket part. The pipe tapping apparatus further includes a coupling pipe to be coupled to the sub-pipe extending to a predetermined place in which the supplied fluid is used, with a ball valve provided in the coupling pipe to control the flow of fluid passing through the coupling pipe. The pipe tapping apparatus further includes an electric heat-welding pipe to couple the coupling pipe to the base pipe. The electric heat-welding pipe has a first heating wire which is provided in the electric heat-welding pipe to weld the electric heat-welding pipe to the base pipe, and a second heating wire which is provided in the electric heat-welding pipe to integrate the coupling pipe with the electric heat-welding pipe. The pipe tapping apparatus further includes a first positioning unit which is removably coupled to an end of the coupling pipe, with a first through hole provided in the center of the first positioning unit, thus guiding a process of tapping the main pipe using the cutting drill passing through the first through hole of the first positioning unit.

REFERENCES:
patent: 3516690 (1970-06-01), Kreig
patent: 4348041 (1982-09-01), Imai et al.
patent: 5964240 (1999-10-01), Granovski
patent: 6068019 (2000-05-01), Lee
patent: 6357470 (2002-03-01), Evans et al.
patent: 6755216 (2004-06-01), Mostala
patent: 2002-137121 (2002-05-01), None

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