Continuous tube extractor

Details Continuous tube extractor Continuous tube extractor

1984-06-22

1986-05-06

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Lifter

29252, 254106, B66F 108

Patent

active

045866953

ABSTRACT:
An apparatus for removing tubes from a tube sheet, wherein the tube to be removed is engaged from the side of the tube with the force for withdrawing the tube being applied against the outer peripheral surface of the tube by a tube-pulling device which, when in operative engagement with the tube to be removed, is positioned parallel to the tube and engages the outer peripheral surface thereof. A selectively actuable reciprocating hydraulic cylinder provides gripping engagement with the tube to incrementally retract the tube relative to the extracting apparatus, while continuously maintaining a positive engagement with the tube throughout the removal operation.

REFERENCES:
patent: 2776695 (1957-01-01), Wells
patent: 2967044 (1961-01-01), Corcreham et al.
patent: 3998428 (1976-12-01), Miles
patent: 4171631 (1979-10-01), Butts
patent: 4405115 (1983-09-01), Boyadjieff

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