Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1983-05-16
1985-11-05
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
15 351, B08B 904
Patent
active
045504660
ABSTRACT:
A cleaning element for cleaning the interior of heat exchanger tubes by being carried along by a cooling water stream and automatically squeezed through the tubes by the cooling water stream, includes a sphere foamed in a closed mold, the sphere being formed of an open-cell sponge rubber core and an open-pore water-permeable skin integral with the core.
REFERENCES:
patent: 3543324 (1970-12-01), Knapp et al.
Greenberg Laurence A.
Lerner Herbert L.
Roberts Edward L.
Taprogge Gesellschaft mbH
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