Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1989-06-28
1991-02-26
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
B08B 902
Patent
active
049951327
ABSTRACT:
A spiral pipe cleaner including coil sections defined by turns and interspaces is rotatable about its axis by means of a drive machine to thread it through a guide housing 1 with an inlet opening 9 and an outlet opening 10. Several engaging jaws 18, 19, 20 in the housing are received in the interspaces between the individual coil turns, which jaws are distributed on the circumference of the coil axis and axially offset. In order to permit passing coil sections joined by means of couplings, the axial distance of two successive engaging jaws 18, 20 and 20, 19 is larger than half of the distance between the ends of two adjacent coil sections joined by coupling elements. Preferably, the axial distance of two successive engaging jaws 18, 19, 20 is larger than the distance between coil sections. In the preferred embodiment at least one engaging jaw 20 is aligned centrally between two engaging jaws 18, 19 disposed on the other side of the coil axis.
REFERENCES:
patent: 2600707 (1952-06-01), Turnbaugh
patent: 3246354 (1966-04-01), Cooney et al.
patent: 3329044 (1967-07-01), Singer
patent: 3882565 (1975-05-01), Irwin et al.
patent: 4447926 (1984-05-01), Rothenberger
Roberts Edward L.
ROWO Rohr und Kanal Reiningungsgeraete GmbH
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