Title: Tube cleaning apparatus

Abstract: A tube cleaning apparatus comprising a frame for attachment to a rotatable drive shaft, and a plurality of arms connected to the frame for movement between an extended position and a retracted position. The apparatus also comprises a plurality of cutter heads secured to the arms for engaging the inside surface of the tube, wherein the cutter heads are spaced from the inside surface of the tube when the arms are in the retracted position, and biasing means for urging the arms to the retracted position. Also disclosed is a method of operating the tube cleaning apparatus.

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Inventors: Nelson, Dana W. (Dexter, OH, US)

Application Number: 930113
Filing Date: 1978-08-01
Publication_date: 1980-01-08
Assignee: Carrier Corporation (Syracuse, NY)
Primary Class(es): 15/104.14
Other Classes:
US Patent Ref:

588830	Aug, 1897	Jones	15/104.
1658617	Feb, 1928	Swartz et al.	15/104.
2597263	May, 1952	Rodgers	15/104.
2628379	Feb, 1953	Darrah	15/72.

Other Refs:
Primary Examiner: Roberts, Edward L.
Assistant Examiner:
Attorney: Curtin; J. Raymond, Sensny; John S.