Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1981-03-26
1983-08-02
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
226 25, B08B 902
Patent
active
043957919
ABSTRACT:
A spring feeding mechanism for use in conjunction with plumbing tools of the type used for cleaning and removing obstructions from drain pipes in which an elongated coiled spring wire, or plumber's snake, is advanced through the pipe and rotated. The feeding mechanism comprises hingeably interconnected jaw members adapted to carry rotatably mounted helically grooved feed rollers and includes a biasing means for yieldably urging the feed rollers into driving engagement with the snake. The feed rollers are readily removable from the jaws and are mounted at an angle with respect to the axis of the coil spring so that the grooves are substantially parallel with the coils of the spring. With this arrangement the rollers can be easily removed and replaced with rollers of different sizes. Due to the unique design of the biasing means the device can readily accommodate distortions and irregularities in the snake without damaging either the snake or the plumber's tool.
REFERENCES:
patent: 3224024 (1965-12-01), Hunt
patent: 3329044 (1967-07-01), Singer
patent: 3451090 (1969-06-01), Lo Presti et al.
patent: 3882565 (1975-05-01), Irwin et al.
patent: 4153966 (1979-05-01), Irwin et al.
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