CENTRAL SHAFT OF CLEANING ROLLER
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Apr 15, 2024
filing date -
Apr 15, 2024
priority date (Note) -
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Abstract
Disclosed is a central shaft of cleaning roller, including a shaft body and a hollow inner flow channel disposed in the shaft body, and a plurality of dispersed through holes fluidly-communicable with the hollow inner flow channel arranged on an outer wall of the shaft body, and a plurality of groove structures radially extending around the surface of the outer wall of the shaft body, and the groove structures have protruding end edges protruding from the surface of the outer wall. The central shaft of cleaning roller can be used to provide better adhesion for an interface between a foam material and the outer wall thereof.
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