Dyson Technology Limited

William John Bex-Russell

Thomas James Dunning Follows

Stephen Benjamin Courtney

Timothy Nicholas Stickney

Peter David Gammack

Adam James Bates

Jonathan George Marsh

Jason Godfrey Jones

Graham Charles Lemon

Robert Lawrence Tweedie

Robert Tweedie

Thomas Follows

Graham Lemon

A dental cleaning appliance includes a handle and a fluid delivery system. The fluid delivery system includes a nozzle for delivering a burst of working fluid to the teeth of a user, and a moveable fluid conduit which is moveable about an axis relative to the handle. The nozzle is moveable with the fluid conduit, which is biased for movement about the axis in a direction which urges the nozzle against a user's teeth during use of the appliance.

Cleaning appliance

A dental cleaning appliance includes a handle and a fluid delivery system for delivering a burst of working fluid to the teeth of a user. Part of the fluid delivery system is moveable relative to the handle as the appliance is moved along the teeth of the user. A sensor provides an output which varies with movement of that part of the fluid delivery system relative to the handle. A control circuit actuates the delivery of working fluid to the teeth of the user depending on the output from the sensor.

A fluid delivery system of a dental cleaning appliance includes a fluid inlet, a pump for drawing a working fluid through the fluid inlet, a hydraulic accumulator for receiving working fluid from the pump, a nozzle having a fluid outlet, and a valve located between the accumulator and the nozzle. The valve has an open position for enabling the accumulator to deliver a burst of working fluid to the nozzle, and a closed position for enabling the accumulator to be replenished under the action of the pump. A control circuit actuates the pump and controls the position of the valve.

Head for dental appliance

Dental cleaning appliance

Dental appliance

A dental cleaning appliance includes a handle, and a fluid delivery system for delivering a burst of working fluid to the teeth of a user. The fluid delivery system includes a nozzle from which the burst of working fluid is delivered to the teeth of the user. The appliance also includes a brush unit which extends at least partially about the nozzle. The brush unit includes a bristle carrier and a plurality of bristles mounted on the bristle carrier. A drive unit drives the movement of the bristle carrier relative to the nozzle.

A dental cleaning appliance includes a handle, and a cleaning tool detachably connected to the handle. The cleaning tool includes a nozzle for delivering a burst of working fluid to the teeth of a user, a stem extending between the handle and the nozzle, and a fluid reservoir for storing working fluid. The fluid reservoir is connected to, and extends around, the stem.

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Horsham, United Kingdom

William John Bex-Russell