Device for removing stains from swimming pool walls and concrete

Abrading – Tool support for flexible-member tool – Manually manipulated

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Details

451557, 51295, 1510494, B24D 1500

Patent

active

059083506

ABSTRACT:
A cleaning tool for cleaning the walls of a swimming pool or other concrete structures. Two different sized aggregate or abrasives are combined with a binder to provide an improved cleaning device. The binder and the aggregates are matched so as to wear at substantially identical rates.

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patent: 4945687 (1990-08-01), Scheider et al.
patent: 5214820 (1993-06-01), Shumway et al.
patent: 5454844 (1995-10-01), Hibbard et al.
patent: 5733178 (1998-03-01), Ohishi
PMC-121 Flexible Mold Compound--Technical Bulletin, Smooth On, revised Jan. 1992.

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