Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1981-06-09
1983-09-27
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
B08B 904
Patent
active
044060319
ABSTRACT:
Cleaning member for cleaning the interior of heat exchanger tubes by rotating, including a sponge rubber element being adapted to suit the diameter of the heat exchanger tube, and abrasive elements connected to the sponge rubber body, the abrasive elements being in the form of bristles each having a bristle shaft, and a bristle base molded into the sponge rubber ball anchoring the bristles.
REFERENCES:
patent: 3651530 (1972-03-01), Schultz
patent: 4016620 (1977-04-01), Powers
patent: 4077079 (1978-03-01), Knapp
patent: 4242771 (1981-01-01), Knapp
Eimer Klaus
Kraker Felix
Schildmann Hans W.
Schmitz Gunther
Sonnenschein Hans
Greenberg Laurence A.
Lerner Herbert L.
Roberts Edward L.
Taprogge Gesellschaft mbH
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