Dyson Technology Limited

The Dyson Corporation

Matthew John Dobson

David Andrew McLeod

James Dyson

Stephen Robert Dimbylow

Adam James Bates

Stuart Lloyd Genn

David Christopher James Newton

Spencer James Robert Arthey

Andrew James Wills

Rob Edward Marsden

Charles Gareth Owen

Peter David Gammack

Sean Ventress

Jonathan Richard Codling

Reuben Thomas Daniel Lawrence Kettle Aiers

Reuben Kettle Aiers

Spencer Arthey

Charles Owen

David Mcleod

A suction nozzle for a vacuum cleaner, the suction nozzle comprising a suction chamber, an outlet duct extending from the suction chamber for connection to a vacuum source on the vacuum cleaner, a soleplate for supporting the nozzle on a carpeted floor, a suction opening in the soleplate which opens into the suction chamber, and a valve which can be manually operated to open or close a bleed path through the front of the nozzle into the suction chamber, the bleed path being defined by a channel formed on the underside of the soleplate which is fluidly connected to the outlet duct, the channel terminating in an entrance slot on the front of the nozzle for admitting debris as the suction nozzle is pushed in a forward direction, the channel defining a throat downstream of the entrance slot, the throat having a smaller cross-sectional area than the entrance slot.

Suction nozzle for a vacuum cleaner

The invention relates to a cleaner-head for a vacuum cleaner. The cleaner-head has a housing, this housing being connected to a hinged soleplate assembly which can be opened and closed to provide access to the inside of the housing. In accordance with the invention, the soleplate assembly is a clip-on assembly which a user can manually un-clip from the housing, as required, to detach the soleplate assembly for separate cleaning or replacement.

Cleaner-head for a vacuum cleaner

Part of a vacuum cleaner

The invention relates to a cleaner head for a vacuum cleaner. The cleaner head has a housing and a soleplate assembly hingedly connected to the housing. The soleplate assembly and the housing are held closed by a releasable catch, which is pivotally mounted to one of the housing or the soleplate for rotation between a locking position and a release position. In accordance with the invention, the catch incorporates a first cam, which cam engages the other of the soleplate or the housing as the catch is rotated from the locking position towards the release position, in order to force apart the housing and the soleplate.

A vacuum cleaning head includes a housing having a suction opening for admitting an air flow to the head, an agitator for agitating a surface to be cleaned, the agitator having an active state and an inactive state, a duct for receiving the air flow from the housing, and a control assembly for controlling the state of the agitator. The control assembly includes a pressure chamber having an interior volume in fluid communication with the duct and which is variable between an expanded configuration and a contracted configuration in response to a pressure difference between the interior volume and ambient air, an actuator for effecting a transition of the agitator from one of the active state and the inactive state to the other of the active state and the inactive state in response to a transition of the pressure chamber to the contracted configuration, and a control mechanism having a first state for preventing the pressure chamber from adopting the contracted configuration, and a second state for allowing the pressure chamber to adopt the contracted configuration. The control mechanism is arranged to change between the first and second states in response to an increase in the interior volume of the pressure chamber, for example in response to an increase in the air pressure within the duct.

Vacuum cleaning head

A vacuum cleaning head includes a pressure chamber having a first chamber section and a second chamber section which is moveable relative to the first chamber section in response to a pressure differential thereacross from a first position to a second position, and a control mechanism located within the pressure chamber. The control mechanism has a first state for inhibiting the movement of the second chamber section in response to said pressure differential beyond a third position intermediate the first and second positions, and a second state for allowing the second chamber section to move in response to said pressure differential to the second position. The control mechanism is arranged to change between the first and second states in response to a movement of the second chamber section from the third position. This can allow the pressure chamber to toggle between different configurations through varying the pressure differential across the second chamber section, for example to raise or lower part of the cleaner head, or to selectively activate or deactivate an agitator.

A handle for a wand of a vacuum cleaning appliance includes a handgrip portion and a conduit for receiving an air flow. The handle includes an aperture for admitting ambient air into the conduit. A first valve occludes a first portion of the aperture, and a second valve occludes a second portion of the aperture. A control mechanism moves the first and second valves away from the aperture to admit ambient air into the conduit. To vary the air flow into the conduit, the control mechanism includes a first manually operable actuator located on the handle for moving both of the first and second valves away from the aperture, and a second manually operable actuator is located on the handle for moving only one of the first and second valves away from its respective portion of the aperture.

Handle for a wand of a vacuum cleaning appliance

A vacuum cleaning appliance includes a vacuum cleaning head having a suction opening, the head having a first state and a second state, a fan unit for drawing an air flow through the suction opening, and a control assembly for controlling the state of the head. The control assembly includes a user-operable valve for increasing temporarily an air pressure within an airflow path extending from the suction opening to the fan unit, a pressure chamber having an interior volume in fluid communication with the airflow path, the pressure chamber being moveable from an expanded configuration to a contracted configuration in response to a pressure difference between the interior volume and ambient air, the pressure chamber being biased towards the expanded configuration, and a control mechanism for allowing the pressure chamber to move to the contracted configuration in response to a first operation of the valve to place the head in one of the first and second states, and for preventing the pressure chamber from returning to the contracted configuration in response to a second operation of the valve to place the head in the other of the first and second states.

Growing community of inventors

Malmesbury, United Kingdom

Matthew John Dobson