Tapping T for plastic pipe

Details Tapping T for plastic pipe Tapping T for plastic pipe

1976-02-20

1977-12-20

Baldwin, Robert D.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having axial, core-receiving central portion

137318, B23B 4108, F16L 4104

Patent

active

040638448

ABSTRACT:
A tapping T for effecting a house outlet connection on non-metallic plastic pipe. A tapping tool is threadedly supported in the body of a tapping T service connector adapted for mounting on a pipe main under pressure. The cutting nose of the tool is secured on a plastic head and is comprised of a smooth, thin wall circularly tubular sleeve the radial end facing of which is serially stepped axially inward in a repetitively controlled pattern of sequential relief about its periphery. To cut a slug or coupon, the cutting nose via the head is threadedly advanced into the pipe wall while a screw extending centrally outward of the cutting nose aids in retaining the cut coupon within the open bore of the sleeve.

REFERENCES:
patent: 3307435 (1967-03-01), Floren
patent: 3532113 (1970-10-01), McKean
patent: 3606565 (1971-09-01), Morain et al.
patent: 3617145 (1971-11-01), Celmer et al.

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