Plug removal apparatus

Details Plug removal apparatus Plug removal apparatus

1980-03-12

1983-01-04

Peters, Jimmy C.

Metal working

Means to assemble or disassemble

Heat exchanger

29252, B23P 1526

Patent

active

043666175

ABSTRACT:
The plug removal apparatus comprises a ram mounted in a rod both of which are mounted in an activating cylinder. The rod is capable of being scrwed into the plug such that when the cylinder is activated, the cylinder causes the ram to push the expander relative to the plug while the rod holds the plug thereby relieving the pressure on the plug. The activating cylinder may then be activated so as to extract the plug from the tube using short strokes. The apparatus is capable of being used manually or remotely so as to be able to remove plugs from heat exchangers and nuclear steam generators.

REFERENCES:
patent: 3504420 (1970-04-01), Shores
patent: 3786550 (1974-01-01), Jones
patent: 4095335 (1978-01-01), Lassarat
patent: 4213239 (1980-07-01), Filer

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