Tapping tee cutter having relieved sidewall

Details Tapping tee cutter having relieved sidewall Tapping tee cutter having relieved sidewall

1976-01-05

1978-02-28

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

Tapping a pipe, keg, or apertured tank under pressure

408204, B23B 4108

Patent

active

040760383

ABSTRACT:
A tapping tee cutter for cutting plastic pipe is provided which comprises an externally threaded plug body attached to a thin-walled, hollow band cutter having a cutting edge with the portion of the band wall nearest the cutting edge having an external diameter at least as great as the cutting edge and forming a shoulder with an adjacent portion of the band cutter wall having a relieved external diameter sufficiently less than the diameter of the cutting edge so that frictional contact between the relieved diameter and a pipe wall being tapped is minimized.

REFERENCES:
patent: 3240226 (1966-03-01), Burkholder
patent: 3349792 (1967-10-01), Larkin
patent: 3617145 (1971-11-01), Celmer et al.
patent: 3756261 (1973-09-01), Minchhoff
patent: 3771546 (1973-11-01), Roos

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