Abstract: An electrode structure for use in a battery cell includes: a current collector layer having a current collector surface; a free-standing electrode layer having an electrode surface that faces the current collector surface; and an interlayer arranged between the current collector surface and the electrode surface. The interlayer includes an electrically conducting material.

Abstract: An oral treatment device includes an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device. The oral treatment device includes a controller configured to receive signals from the IMU indicating movement of the oral treatment device relative to the oral cavity, and process the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type. The controller is configured to control the oral treatment device to perform an action using the classification data.

Abstract: An oral treatment device includes a head for use in treating an oral cavity of a user, an inertial measurement unit, IMU, configured to generate signals dependent on position and/or movement of the head relative to the oral cavity, and intraoral image sensor equipment configured to generate image data representing at least a portion of the oral cavity. The oral treatment device includes a controller configured to process the generated signals and the generated image data using a trained classification algorithm to determine an intraoral location of the head of the oral treatment device. The controller is configured to control the oral treatment device to perform an action based on the determined intraoral location.

Abstract: A wearable air purification system including a wearable support configured to be supported on a head of a user, and an air delivery mask which is shaped to bound, at least partially, an air delivery region and to deliver a flow of air to the air delivery region. The wearable support includes a left side support and a right side support which support the air delivery mask therebetween; and a left side motor and a right side motor configured to drive a respective left or right side air flow towards or away from the air delivery region, each of the left and right side motors being mounted within a respective left or right side motor housing on a respective one of the left and right side supports so that, when the wearable support is supported on the head in use, the motors sit rearward of or above the user's ears.

Abstract: A wearable air purification system including a wearable support for on or around a head region of a user; and an air delivery mask connected to the wearable support which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The air delivery mask includes an illumination source located along a longitudinal edge of the air delivery mask, and a control system that is configured to control the illumination source to convey information to a user in response to data received by the control system. The system is configured to direct light to the area occupied by the user's mouth when the air purifier is worn. The form of illumination means that the user's face is more visible to others which reduces facial features being obscured. The control system enables the product to be interactive for the user, delivering status information, and other data to enhance the user experience.

Abstract: A haircare appliance has an air inlet, an air outlet, an airflow generator for generating an airflow from the air inlet to the air outlet, a fixed body defining the air outlet, and a rotatable member rotatable relative to the fixed body. The air outlet has a first aperture located on a first side of the fixed body, and a second aperture located on a second side of the fixed body opposite to the first side of the fixed body. The rotatable member is rotatable from a first configuration in which the rotatable member permits airflow through the first aperture and blocks airflow through the second aperture, to a second configuration in which the rotatable member permits airflow through the second aperture and blocks airflow through the first aperture. The rotatable member is rotatable relative to the fixed member under the action of gravity in use.

Abstract: A head wearable air purifier that includes a filter assembly, a motor-driven impeller for creating an airflow through the filter assembly to obtain a filtered airflow downstream of the filter assembly, and at least one light source for emitting light in a violet portion of the visual spectrum. The head wearable air purifier further includes a light guide arranged to guide light emitted from the at least one light source to illuminate at least part of an upstream surface of the filter assembly for the decontamination thereof.

Abstract: An oral treatment device includes a head for use in treating an oral cavity of a user, the oral cavity including a plurality of oral cavity zones, and an inertial measurement unit, IMU, operable to output signals dependent on position and/or movement of the head. The oral treatment device includes a controller configured to receive signals from the IMU indicating position and/or movement of the head relative to the oral cavity, and process the received signals using a trained non-linear classification algorithm to obtain classification data. The classification algorithm is trained to identify, from the plurality of oral cavity zones, an oral cavity zone in which the head of the oral treatment device is located. The controller is configured to control the oral treatment device to perform an action using the obtained classification data.

Abstract: A wearable air purification system including: a support assembly, including: a first earpiece arranged to engage a first ear of a user; a second earpiece arranged to engage a second ear of the user; a support member connecting the first earpiece to the second earpiece, the support member being arranged to be worn around the user's head; and an air inlet; an air filter including, or in fluid communication with, the air inlet; and an air delivery mask connected to the support assembly and shaped to bound an air delivery region that contains the user's mouth and/or nose. In use, the air delivery mask includes: an air channel arranged to convey air discharged by the air filter to an outlet in the air delivery region; and a motor arranged to drive an impeller to pump air through the air channel to the outlet.

Abstract: A wearable air purification system including a wearable support configured to be supported on or around a head region of a user; and an air delivery mask connected to the wearable support which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The air delivery mask includes an illumination source including one or more light emitting elements located along a longitudinal edge of the air delivery mask. The system or ‘air purifier’ is configured to direct light to the area occupied by the user's mouth when the air purifier is worn, as well as in some examples providing illumination to a mask or visor of the product itself. Examples herein are more visually appealing but the form of illumination means that the user's face is more visible to others which therefore reduces facial features being obscured.

Abstract: A wearable air purification system including: a support assembly arranged to be worn around a user's head, the support assembly including an air inlet; an air filter including, or in fluid communication with, the air inlet; and an air delivery mask connected to the support assembly and shaped to bound an air delivery region that contains the user's mouth and/or nose. In use, the air delivery mask includes: an air channel arranged to convey air discharged by the air filter to an outlet in the air delivery region; and a motor arranged to drive an impeller to pump air through the air channel to the outlet, the motor being housed in a side region of the air delivery mask to locate beside or beneath the user's face, in use.

Abstract: A mobile dock is disclosed and includes a receiving unit for receiving the floor cleaner. The paired device may be the floor cleaner, or a smart device of a user. The mobile dock follows a user, such that the dock is conveniently accessible during use of the floor cleaner.

Abstract: An oral treatment device includes image sensor equipment operable to generate image data representing at least a portion of an oral cavity of a user. The oral treatment device includes a controller configured to process the generated image data to identify an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to compare at least one characteristic of the identified interproximal gap with at least one characteristic of one or more previously identified interproximal gaps of the oral cavity of the user. The controller is configured to control the oral treatment device to perform an action based on a result of the comparison.

Abstract: A wearable air purification system having a wearable support configured to be supported on a user's head. The wearable support is attached to an air delivery mask which delivers a flow of air to an air delivery region. A motor for driving the flow of air to the air delivery region is mounted on the wearable support, or on the air delivery mask, and an air filter for purifying the flow of air is mounted on the wearable support, or on the air delivery mask. Each end of the air delivery mask is moveably connected to the wearable support so that the wearable support is able move with respect to the air delivery mask from a deployed position to a stowed position. The volume envelope of the wearable air purification system is larger in the deployed position than in the stowed position.

Abstract: An oral treatment device includes intraoral image sensor equipment configured to generate image data representing at least a portion of the oral cavity of a user during use by the user of the oral treatment device. The oral treatment device includes a controller configured to process the generated image data to determine location data indicating a location of an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to process the generated image data using a trained classification algorithm configured to identify interproximal gaps, the trained classification algorithm having been trained prior to the use of the oral treatment device. The controller is configured to, during the use of the oral treatment device, control the oral treatment device to deliver a treatment to the detected interproximal gap based on the location data.

Abstract: Apparatus for making an electrode-electrolyte structure includes: a die head defining a substrate pathway for passage of an electrode substrate through the die head from a substrate inlet to a substrate outlet, and an electrolyte pathway for passage of an electrolyte gel through the die head; an electrode feeder for feeding an electrode substrate along the substrate pathway; and an electrolyte feeder for feeding a polymer gel electrolyte along the electrolyte pathway. The electrolyte pathway is arranged to meet the substrate pathway at a junction arranged between the substrate inlet and the substrate outlet, to extrude the electrolyte onto the electrode substrate as it is fed along the substrate pathway.

Abstract: An oral treatment device includes an inertial measurement unit, IMU, operable to output signals dependent on position and/or movement of the oral treatment device. The oral treatment device includes a fluid delivery system for delivering working fluid to an oral cavity of a user. The oral treatment device includes a controller configured to process signals received from the IMU indicating position and/or movement of the oral treatment device relative to the oral cavity of the user, and on the basis of the processing, output a control signal to the fluid delivery system to control delivery of the working fluid.

Abstract: An oral treatment device includes image sensor equipment configured to generate image data indicative of a sequence of images representing at least a portion of an oral cavity of a user. The oral treatment device includes a controller configured to process the image data to determine a movement parameter indicative of movement of the oral treatment device relative to an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to control the oral treatment device to perform an action based on the determined movement parameter.

Abstract: A cleaner head for a vacuum cleaner includes a single agitator rotatably mounted within a housing, the agitator being arranged transversely within the housing such that it is perpendicular to the direction of travel of the cleaner head during use, the agitator being conical in shape, such that a first end has a larger diameter than a second end.

Abstract: A test device is provided for an air filter comprised in an air channel of a portable air purifier. The test device includes a sensor inlet and a sensor outlet, at least the sensor inlet being connectable to the air channel of the portable air purifier. The test device further includes a filter condition sensor, positioned between the sensor inlet and the sensor outlet, and configured to analyse a condition of an air filter comprised in the air channel.