Surface treating head
AssigneeDyson Technology Limited
InventorsSpencer James Robert Arthey, Stephen Robert Dimbylow, Alistair William Skuse
Life of this patent
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Abstract
A surface treating head includes a main body; a brush unit; and a drive mechanism for moving the brush unit relative to the main body between a stowed position and a deployed position. The drive mechanism includes a pressure chamber and a valve unit for varying the pressure within the chamber. The valve unit includes a housing, a valve located within the housing and, disposed on the housing, an actuator moveable relative to the housing through engagement with a surface to be treated for operating the valve and at least one surface engaging member extending downwardly beyond the actuator. The housing is moveable relative to the main body to maintain the surface engaging member in contact with the surface to be treated.
Claims34
A surface treating head comprising a main body;
- a brush unit having an active state and an inactive state;
- and an actuating mechanism for actuating a transition of the brush unit between the inactive state and the active state comprising a housing, an actuator disposed on the housing and at least one surface engaging member disposed on the housing, the housing, the actuator and the at least one surface engaging member moveable as a unit relative to the main body, the actuator moveable relative to the housing through engagement with a surface to be treated and the at least one surface engaging member extending downwardly beyond the actuator.
A surface treating head comprising a main body;
- a brush unit;
- and a drive mechanism for moving the brush unit relative to the main body between a stowed position and a deployed position, the drive mechanism comprising a pressure chamber and a valve unit for varying the pressure within the chamber, the valve unit comprising a housing, a valve located within the housing, an actuator disposed on the housing and at least one surface engaging member disposed on the housing, the housing, the actuator and the at least one surface engaging member moveable as a unit relative to the main body, the actuator moveable relative to the housing through engagement with a surface to be treated for operating the valve and the at least one surface engaging member extending downwardly beyond the actuator.
Dependencies are inferred from the claim text.