Tube traveler device

Details Tube traveler device Tube traveler device

1983-10-21

1989-03-28

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Heat exchanger

294264, 226187, 254 29R, B23P 1904

Patent

active

048152013

ABSTRACT:
An extractor for pulling individual tubes from a tube sheet in a heat exchanger. The extractor includes a pair of serrated, drive wheels or drivers mounted in a housing on parallel rotating shafts. The tube drivers have inclined teeth which project into opposite sides of a passageway along which a tube is drawn. The spacing between the drivers is adjustable to accommodate different sized tubes, and the drivers are spring biased towards each other, to provide a constant gripping force on a tube within the passageway. The drivers are respectively rotated by two hydraulic motors, with the hydraulic power supply connected in series, thereby providing substantially synchronous rotation of the drivers.

REFERENCES:
patent: 1591322 (1926-07-01), Karmazin
patent: 1950623 (1934-03-01), Owston
patent: 3339393 (1967-09-01), Rice
patent: 3785026 (1974-01-01), Ohmstede
patent: 3924316 (1975-12-01), Matlock et al.
patent: 4033496 (1977-07-01), Rolfe
patent: 4044444 (1977-08-01), Harris
patent: 4125928 (1978-11-01), Cawley et al.
patent: 4132099 (1979-01-01), Elsener
patent: 4150477 (1979-04-01), Orr

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