A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
A47L 9/04 (2006.01)
Patent
CA 2615181
A spinning bristled roller assembly for the nozzle of a vacuum cleaner or other carpet cleaning apparatus. The roller assembly includes three bearings protected by a comprehensive thread guard system. The three bearing system, in combination with the structure of the tubular roller body and bearing housing provides an assembly having inherently improved balance characteristics that eliminate the prior need for dynamic balancing to ensure vibration-free operation.
Alton James R.
Borden Ladner Gervais Llp
LandOfFree
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