Cleaning sponge roller
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United States of America Patent
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Oct 15, 2013
Grant Date -
Nov 3, 2011
app pub date -
Jun 22, 2009
filing date -
Jun 30, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A cleaning sponge roller 1 is made of a polyvinyl acetal porous material having elasticity in a wet state, and includes a roller body 3 in an approximate cylinder form, and a plurality of protrusions 5 formed integrally on an outer peripheral surface 3a of the roller body 3, and rotates the multiple protrusions 5 to make contact with a surface to be cleaned so as to clean the surface. Outer surfaces of the protrusions 5 respectively have a top outer surface 5a (interior exposed surface) making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions 5 are exposed.
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