Wells – Guide for device or conduit – Surrounding existing device or tubing
Patent
1992-04-21
1993-08-24
Britts, Ramon S.
Wells
Guide for device or conduit
Surrounding existing device or tubing
E21B 1710
Patent
active
052380629
ABSTRACT:
A centralizer comprises two spaced-apart support rings connected by spring bows. Each support ring is provided with an internal groove. In use the centralizer is slid onto a pipe provided with two spaced-apart external grooves. When the internal grooves on the support rings overly the external grooves on the pipe a flexible stop ring is inserted through a window in the support rings into a space defined by the internal groove and the external groove. The internal groove on the support ring extends axially longer than the stop ring by an amount such that the spring bows can be pressed flat against the periphery of the pipe.
REFERENCES:
patent: 2387493 (1945-10-01), Brokaw
patent: 2582719 (1952-01-01), Ramsey
patent: 2618342 (1952-11-01), Meyer
patent: 2828824 (1958-04-01), Comstock
patent: 2898136 (1959-08-01), Hall, Sr. et al.
patent: 2944603 (1960-07-01), Baker et al.
patent: 2986417 (1961-05-01), Baker
patent: 3000444 (1961-09-01), Wright et al.
patent: 3065005 (1962-11-01), Hall, Sr. et al.
patent: 3072196 (1963-01-01), Love
patent: 3200884 (1965-08-01), Solum et al.
patent: 3343608 (1967-09-01), Solum
patent: 3566965 (1971-03-01), Solum
patent: 3575239 (1971-04-01), Solum
patent: 3643739 (1972-02-01), Hall, Sr.
patent: 3889750 (1975-06-01), Mullins
patent: 4042022 (1977-07-01), Wills et al.
patent: 4269269 (1981-05-01), Wilson
patent: 4363360 (1982-12-01), Richey
patent: 4425966 (1984-01-01), Garney
patent: 4520869 (1985-06-01), Svenson
patent: 4787458 (1988-11-01), Langer
patent: 4794986 (1989-01-01), Langer
U.K. Patent Application No. GB 2,171,436A filed 15 Jan. 86 and naming Mikolajczyk as inventor.
"General Services and Products Catalog 1990-91" Weatherford 1989.
Britts Ramon S.
McClung Guy
Tsay Frank S.
Weatherford / Lamb, Inc.
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