Surface treating head
AssigneeDyson Technology Limited
InventorsCharles Geoffrey Box, Luke William Stephens
Life of this patent
Estimating the term…
Abstract
A surface treating head comprising a suction cavity having a suction cavity opening bounded by a front working edge and a rear working edge, at least one of the front and rear working edges being moveable between a first position in which the suction cavity opening is at a maximum and a second position in which the suction cavity opening is at a minimum, an actuating mechanism comprising a user-operable actuator for actuating at least one of the front and rear working edges between the first and second positions, and one or more air bleed vents, wherein actuation of the actuating mechanism causes the one or more air bleed vents to open and close.
Claims25
A surface treating head comprising:
- a suction cavity having a suction cavity opening bounded by a front working edge and a rear working edge, at least one of the front and rear working edges being moveable between a first position in which the suction cavity opening is at a maximum and a second position in which the suction cavity opening is at a minimum;
- an actuating mechanism comprising a user-operable actuator for actuating at least one of the front and rear working edges between the first and second positions, wherein the actuated at least one of the front and rear working edges is fixed in the same position throughout forward and rearward movement of the surface treating head;
- and
- one or more air bleed vents,
- wherein actuation of the actuating mechanism causes the one or more air bleed vents to open and close.
A vacuum cleaner comprising:
- a surface treating head attached to a wand of the vacuum cleaner, the surface treating head comprising:
- a suction cavity, the suction cavity having a suction cavity opening bounded by a front working edge and a rear working edge, at least one of the front and rear working edges being moveable between a first position in which the suction cavity opening is at a maximum and a second position in which the suction cavity opening is at a minimum;
- an actuating mechanism comprising a user-operable actuator for actuating at least one of the front and rear working edges between the first and second positions, wherein the actuated at least one of the front and rear working edges is fixed in the same position throughout forward and rearward movement of the surface treating head;
- and
- one or more air bleed vents,
- wherein actuation of the actuating mechanism causes the one or more air bleed vents to open and close.
A surface treating head comprising:
- a suction cavity having a suction cavity opening bounded by a front working edge and a rear working edge, at least one of the front and rear working edges being moveable between a first position in which the suction cavity opening is at a maximum and a second position in which the suction cavity opening is at a minimum;
- an actuating mechanism comprising a user-operable mechanical slider configured for sliding across a surface of the surface treating head and actuating at least one of the front and rear working edges between the first and second positions;
- and
- one or more air bleed vents,
- wherein actuation of the actuating mechanism causes the one or more air bleed vents to open and close.
Dependencies are inferred from the claim text.