Centralizer band-collar connection

Details Centralizer band-collar connection Centralizer band-collar connection

1984-01-20

1985-10-08

Leppink, James A.

Wells

Guide for device or conduit

On sucker or pump rod

308 4A, E21B 1710

Patent

active

045454361

ABSTRACT:
Improvements in well bore centralizers; improvements in centralizers which may be shipped by the manufacturer unassembled, occupying a small volume of space, and later assembled; a field-assemblable casing centralizer consisting of a pair of collars and connecting outwardly bowed leaf springs secured to the collars by a cooperating leaf spring end and collar structure and relief thereof permitting both rivet and weld attachments.

REFERENCES:
patent: 1282976 (1918-10-01), Stubbs et al.
patent: 2680488 (1954-06-01), Atkinson
patent: 3055432 (1962-09-01), Park
patent: 3282349 (1966-11-01), Cobbs et al.
patent: 4042022 (1977-08-01), Wills et al.
patent: 4219081 (1980-08-01), Howe
patent: 4363360 (1982-12-01), Richey

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