Tube extracting apparatus

Details Tube extracting apparatus Tube extracting apparatus

1980-01-31

1981-07-28

Peters, Jimmy C.

Metal working

Means to assemble or disassemble

Heat exchanger

29263, B23P 1900

Patent

active

042802741

ABSTRACT:
Apparatus for extracting tubes from the tube sheets of a heat exchanger is provided which is particularly suitable for the removal of tubes of small internal diameter and which includes a tube pulling dart having a tapered threaded end for engagement within the tube and a sleeve secured thereto for automatic attachment of a power operated pulling mechanism. The threads on the dart preferably have a right triangular cross section with vertical faces for applying the load from the threads onto the tube to be extracted. In another embodiment the attachment is manual.

REFERENCES:
patent: 1382835 (1921-06-01), Johnson
patent: 2487331 (1949-11-01), Greene
patent: 2916813 (1959-12-01), Belanger
patent: 3120700 (1964-02-01), Chuplis
patent: 3507028 (1970-04-01), Stellatella
patent: 3613212 (1971-10-01), Miller
patent: 3835520 (1974-09-01), Sismore
patent: 4095335 (1978-06-01), Lassarat

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