초록 ▼

A cleaning brush for a power-driven robotic pool cleaner is formed from a plurality of cylindrical sections of water-expandable compressed cellulose sponge material that are preferably die-cut from a sheet or web, each section having a central opening corresponding in both size and shape to the cros

A cleaning brush for a power-driven robotic pool cleaner is formed from a plurality of cylindrical sections of water-expandable compressed cellulose sponge material that are preferably die-cut from a sheet or web, each section having a central opening corresponding in both size and shape to the cross section of the rotatable shaft on which the cylindrical sections are mounted in spaced relation. When wet with water, the compressed cellulose sponge material expands many times its original compressed thickness to provide a cleaning brush having continuous coverage over the entire length of the shaft.

대표청구항 ▼

[ I claim:] [1.]1. A cleaning brush assembly mounted on a rotatable shaft of a power-driven swimming pool cleaning apparatus for contacting the submerged surfaces of the pool to be cleaned, the brush assembly comprising a plurality of compressed cylindrical sections of water-expandable cellulose spo

[ I claim:] [1.]1. A cleaning brush assembly mounted on a rotatable shaft of a power-driven swimming pool cleaning apparatus for contacting the submerged surfaces of the pool to be cleaned, the brush assembly comprising a plurality of compressed cylindrical sections of water-expandable cellulose sponge, each section having a central orifice corresponding in size and shape to the cross-section of the rotatable shaft and a cylindrical peripheral surface, the plurality of sections being mounted on the rotatable shaft in predetermined spaced relation, whereby the adjacent sections expand into abutting contact and the peripheral surfaces form a continuous cleaning surface for contacting the pool surfaces to be cleaned when the assembly is immersed in water.