Tube positioning tool and method for use

Details Tube positioning tool and method for use Tube positioning tool and method for use

1986-02-24

1987-04-07

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29255, 29523, 29727, B21D 5300, B23P 1526, B23P 1904

Patent

active

046549439

ABSTRACT:
A tube positioning tool for remotely positioning a replacement tube into axial alignment and interfitting engagement with an existing tube, and method for its use. The forward end section of the elongated pressurizable tube positioning tool is first inserted through the replacement tube and into the existing tube end, after which the forward end is clamped into position therein by pressurizing the tool and expanding the tool nose end. Next, the tool body rear piston is pressurized and the replacement tube is moved forward into axial alignment and interfitting engagement with the adjacent existing tube. Then the tool body front piston is pressurized to expand a resilient mandrel and the rear portion of the replacement tube is expanded firmly into the opening in the tube sheet. Following such replacement tube installation, the tool is depressured and withdrawn from the tubes.

REFERENCES:
patent: 4387507 (1983-06-01), Kelly
patent: 4414739 (1983-11-01), Kelly
patent: 4445261 (1984-05-01), Kelly
patent: 4607426 (1986-08-01), Kelly

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