Oscillating line travel pipe cleaning machine

Brushing – scrubbing – and general cleaning – Machines – Scraping

Patent

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Details

15 88, 1510404, 29 8105, 29 8111, 29 8113, B08B 902

Patent

active

050018019

ABSTRACT:
A self-propelled pipe cleaning machine as disclosed for use in removal of deteriorated coatings, such as coal tar or tape, from pipelines and providing a degree of surface preparation suitable for recoating. The machine comprises a travelling frame for motion along the pipe and an oscillating carriage bearing a plurality of counter-rotating cylindrical cutting tools which are urged toward the pipe surface by constant-force pneumatic cylinders. Variation in the pressure of cutters against the pipe surface during oscillation of the cutter head is avoided by counterbalancing of the pivotally-mounted cutters and their associated drive means.

REFERENCES:
patent: 3797060 (1974-03-01), Salukvadze et al.
patent: 4771499 (1988-09-01), Fusi et al.

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