Invention Grant
US08499772B2 Vacuum cleaner roller nozzle 有权
吸尘器滚筒喷嘴

Vacuum cleaner roller nozzle
Abstract:
The present invention includes a vacuum cleaner nozzle assembly that has protective rollers that glide along the surface to be cleaned without interfering with the function of the vacuum cleaner nozzle. The nozzle comprises a tubular nozzle conduit in fluid communication with a vacuum conduit on a first end of the tubular nozzle and a nozzle mouth at the second end of the tubular nozzle opposite the first end. The nozzle conduit has a circumferential roller assembly collar attached to the outside of the tubular nozzle, the collar is formed with a plurality of radially spaced apart seats that are sized and configured to securely receive a plurality of respective balls that are rotatable inside the respective seats.
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