公开(公告)号：US20180116774A1

公开(公告)日：2018-05-03

申请号：US15794565

申请日：2017-10-26

Applicant: Dyson Technology Limited

Inventor： James David COLEMAN ,  Andrew Nicholas WALTON ,  Luke William DAVISON ,  Robert Lawrence TWEEDIE

IPC: A61C17/22 ,  A61C17/36 ,  A46B13/04 ,  A61C17/28 ,  A46B15/00

CPC classification number: A61C17/227 ,  A46B11/002 ,  A46B11/0062 ,  A46B11/0079 ,  A46B11/0096 ,  A46B13/04 ,  A46B15/0004 ,  A46B2200/1066 ,  A61C17/02 ,  A61C17/0202 ,  A61C17/028 ,  A61C17/221 ,  A61C17/222 ,  A61C17/28 ,  A61C17/36

Abstract: A dental cleaning appliance includes a nozzle having a fluid chamber, a fluid outlet and a channel extending between the fluid chamber and the fluid outlet. A water reservoir provides water to a pump for generating a burst of pressurized water, which is supplied to the nozzle by a fluid conduit. Following the delivery of the burst of water to the teeth of the user, a valve draws water back into the fluid chamber from the channel to prevent that water from dripping from the fluid outlet before the next water burst is generated by the pump. Simultaneously, air may be drawn into the fluid chamber, for example, through the fluid outlet, for mixing with the next water burst to generate a fluid burst for delivery to the user's teeth.

公开(公告)号：US20180116390A1

公开(公告)日：2018-05-03

申请号：US15794738

申请日：2017-10-26

Applicant: Dyson Technology Limited

Inventor： Robert Lawrence TWEEDIE ,  Christopher Graham VINCENT ,  Thomas James Dunning FOLLOWS ,  James David COLEMAN ,  Andrew Nicholas WALTON

IPC: A46B13/04

CPC classification number: A46B13/04 ,  A46B9/04 ,  A46B11/002 ,  A46B11/0062 ,  A61C5/50 ,  A61C17/0202

Abstract: A fluid delivery system for a dental cleaning appliance includes a nozzle for delivering a burst of working fluid to the teeth of a user, and a fluid conduit for conveying working fluid to the nozzle. A body of the nozzle defines a fluid chamber and a channel for conveying working fluid from the fluid chamber to a fluid outlet from the nozzle. The fluid chamber has a tangential inlet for receiving working fluid from the fluid conduit.