Apparatus and method for salvaging concentric piping members

Details Apparatus and method for salvaging concentric piping members Apparatus and method for salvaging concentric piping members

1989-09-07

1990-08-14

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Disassembling

294265, 29234, B23P 1902

Patent

active

049475347

ABSTRACT:
A system for non-destructively salvaging cemented concentric piping members by ramming the concentric piping members, thereby breaking the bond between the piping members and the concrete. The ramming of the concrete portions is accomplished by anchoring the cemented concentric piping members to an immovable base, then separating an outer pipe or casing and inner concentric pipes from each other by using an air hammer.

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patent: 3866425 (1975-02-01), Morrice
patent: 4026602 (1977-05-01), Bieri
patent: 4099784 (1978-07-01), Cooper
patent: 4226016 (1980-10-01), Carr
patent: 4327703 (1982-04-01), Destree
patent: 4487643 (1984-12-01), Ellett

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