Segmented concentric centralizer

Details Segmented concentric centralizer Segmented concentric centralizer

1985-08-15

1987-02-10

Lin, Kuang Y.

Metal fusion bonding

Process

With shaping

72393, B23K 3102, B21D 4102

Patent

active

046417761

ABSTRACT:
A conduit centralizer comprises segmented, sliding upper and lower collars connected by a plurality of axially extending, outwardly bowed leaf springs. Each collar is formed by the hinged connection on a plurality of segments in close fitting contact with the outer diameter of a pipe. The ends of the leaf springs are respectively inserted within the individual segments and welded to the segments. Individual collar segment sections or subassemblies comprising upper and lower collar segments secured to a single intermediate bowed leaf spring can then be interconnected to form a concentric centralizer.

REFERENCES:
patent: 2897016 (1959-07-01), Baker
patent: 3055432 (1962-09-01), Park
patent: 3566965 (1971-03-01), Solum
patent: 3929388 (1975-12-01), Sutko et al.
patent: 4219081 (1980-08-01), Howe
patent: 4530231 (1985-07-01), Main

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