Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe
Patent
1990-04-09
1991-12-24
Kisliuk, Bruce M.
Wells
Means for perforating, weakening, bending or separating pipe...
Cutter rotates circumferentially of pipe
166241, 175325, 175406, 175408, 407 2, 407 34, 408201, E21B 2900, B23P 600, B26D 136
Patent
active
050743562
ABSTRACT:
A milling tool (3-5; 51-53) in combination with a stabilizer therefor has a milling tool with a body (51) with a plurality of radially extending and circumferential blades (3) diposed about the body. The lower portion of the body (51) has a portion (57) upon which is located a stabilizer (70), the stabilizer comprising a sleeve (71) about which are disposed a plurality of helically disposed fins (75). The sleeve (71) has an internal screw thread (73) for mating with an external screw thread (55) on the body (51).
By providing a single milling tool on site and a plurality of separate pilot stabilizers so stabilizer sleeves can be quickly and easily secured to the milling tool thereby eliminating the necessity of cutting the fins to the required radial height when on site.
REFERENCES:
patent: 2846193 (1958-08-01), Chadderdan
patent: 3110084 (1963-11-01), Kinzbach
patent: 3114416 (1963-12-01), Kammerer
patent: 3147536 (1964-09-01), Lamphere
patent: 3360840 (1968-01-01), Kammerer, Jr.
patent: 4549613 (1985-10-01), Case
patent: 4717290 (1988-01-01), Reynolds et al.
patent: 4844179 (1989-07-01), Forrest et al.
Kisliuk Bruce M.
Smith International Inc.
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