Boiler tube removal apparatus

Details Boiler tube removal apparatus Boiler tube removal apparatus

1998-06-09

1999-11-02

Cuda, Irene

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

29727, 29726, 29890031, B23P 1526

Patent

active

059746424

ABSTRACT:
An apparatus is provided for removing the severed end-portions of boiler tubes installed and retained in a boiler header without consequential boiler header metal damage and in a manner whereby a compression gap of uniform width is machined throughout the length and thickness of each retained boiler tube end-portion selected for removal, the machined boiler tube end-portion is subsequently compressed to significantly close the machined compression gap and reduce the tube end cross-sectional circumference, and the compressed tube end is withdrawn longitudinally from engagement with the boiler header tube-mounting bore.

REFERENCES:
patent: 4967468 (1990-11-01), Vossbrick et al.
patent: 4979294 (1990-12-01), Bowman et al.
patent: 5033347 (1991-07-01), Hillestad et al.
patent: 5044075 (1991-09-01), Brennan et al.
patent: 5205038 (1993-04-01), Archer et al.
patent: 5893209 (1999-04-01), Weeks et al.

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