Tube cutter tool and method of use for coupon removal

Details Tube cutter tool and method of use for coupon removal Tube cutter tool and method of use for coupon removal

1995-01-23

1997-05-06

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

2940206, 29890031, 408 16, 408 67, 408 79, 408209, B23B 3500, B23B 4100

Patent

active

056264453

ABSTRACT:
A tube cutter tool is insertable into a tube for cutting a coupon from a damaged site on the exterior of the tube. Prior to using the tool, the damaged site is first located from the interior of the tube using a multi-coil pancake eddy current test probe. The damaged site is then marked. A fiber optic probe is used to monitor the subsequent cutting procedure which is performed using a hole saw mounted on the tube cutter tool. Prior to completion of the cutting procedure, a drill in the center of the hole saw is drilled into the coupon to hold it in place.

REFERENCES:
patent: 1266520 (1918-05-01), Nilson
patent: 2181512 (1939-11-01), Kirby
patent: 3954136 (1976-05-01), Gugel
patent: 4380991 (1983-04-01), Richter et al.
patent: 4440531 (1984-04-01), Astle
patent: 4702878 (1987-10-01), Klug et al.
patent: 4703264 (1987-10-01), Edwards
patent: 4919194 (1990-04-01), Gery et al.
patent: 4936013 (1990-06-01), Sahawneh
patent: 5088553 (1992-02-01), Ralston et al.

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