US Patent 7650663 Replaceable/disposable brush head

Disclosed is a brush head useful for cleaning toilet bowls and for other cleaning applications. The brush head is flushable after use and insertable in a permanent type wand. The brush head may be a stack of sheets of water-dissolvable material. The sheets are compressed to bind them together into a stack. Surface indentations and piercing of layers at the indentations are used to bind the brush head layers together more securely without the need for binding adhesives, and to facilitate clamping.