A brush configured to clean, buff, and polish a surface, comprising a core member having a central axis, a periphery and a sheet of material, the sheet of material comprising closed-cell silicone foam rubber and having a first free end portion. The sheet of material is attached to the core member with the free end portion extending away from the periphery substantially parallel to the central axis of the core member. The core member includes a flat surface adjacent the attachment of the sheet of material. The core member and the sheet of material are configured for relative movement with respect to the surface in at least a first direction. The motion in the first direction causes the free end portion of the sheet of material to contact the surface at a non-zero velocity, and produces at least one of the cleaning, buffing and/or polishing action on the surface.

The present invention relates to a device that is in particular detachable, connectable, or connected with a cleaning device, wherein the device comprises at least one sensor means in order to record the position of at least one cleaning area of a cleaning device, which area can be or is used for cleaning, at least one display device, and at least one data processing unit which interacts or can be made to interact functionally with the display device, and with the at least one sensor means, wherein the data processing device is configured and adapted to display at least one representation of at least one surface to be cleaned in at least one first color or without color and, based on a recorded change in the position of at least the cleaning area of the cleaning device, to display the surface to be cleaned in at least one second color or without superimposition of color.

The present invention relates to a device that is in particular detachable, connectable, or connected with a cleaning device, wherein the device comprises at least one sensor means in order to record the position of at least one cleaning area of a cleaning device, which area can be or is used for cleaning, at least one display device, and at least one data processing unit which interacts or can be made to interact functionally with the display device, and with the at least one sensor means, wherein the data processing device is configured and adapted to display at least one representation of at least one surface to be cleaned in at least one first color or without color and, based on a recorded change in the position of at least the cleaning area of the cleaning device, to display the surface to be cleaned in at least one second color or without superimposition of color.

The present application provides a control method and system, and mobile robot using the same. The mobile robot comprises: a storage device, configured to store a simultaneous localization and mapping application and a behavior control application; an image acquisition device, configured to acquire images of an operating environment; a processing device, configured to control the image acquisition device to capture pictures in order to acquire an image containing the ground, and invoke the simultaneous localization and mapping application and the behavior control application to control the behaviors of the mobile robot when identified that the image contains flexible obstacle; and a movement system, configured to drive the mobile robot to move based on a control instruction output by the processing device. In the present application, the flexible obstacle can be detected effectively, and the behaviors of the mobile robot can be controlled correspondingly based on detection results.

The present application provides a control method and system, and mobile robot using the same. The mobile robot comprises: a storage device, configured to store a simultaneous localization and mapping application and a behavior control application; an image acquisition device, configured to acquire images of an operating environment; a processing device, configured to control the image acquisition device to capture pictures in order to acquire an image containing the ground, and invoke the simultaneous localization and mapping application and the behavior control application to control the behaviors of the mobile robot when identified that the image contains flexible obstacle; and a movement system, configured to drive the mobile robot to move based on a control instruction output by the processing device. In the present application, the flexible obstacle can be detected effectively, and the behaviors of the mobile robot can be controlled correspondingly based on detection results.

This application relates to flotation devices generally, and particularly to inflatable flotation devices configured for use by an infant to support the infant at least partially above the water and to at least partially retain the infant therein. In some embodiments, an apparatus is a flotation member having an inner perimeter, a top portion and a bottom portion. The flotation member has a first height between its bottom portion and its top portion at a first location of the flotation member. The flotation member has a second height between the top portion and the bottom portion at a second location of the flotation member, the second height different from the first height. The flotation member includes a support member at least partially disposed within the inner perimeter of the flotation member. The support member has a first portion coupled to the top portion of the flotation member at the first location. The support member has a second portion coupled to the top portion of the flotation member at the second location. The support member has a third portion between the first portion and the second portion, and the third portion is coupled to the bottom portion of the flotation member at a third location different from the first location of the flotation member and the second location of the flotation member.

A method of performing at least one of a cleaning, buffing, and polishing action on a surface, without requiring water, comprises providing a core member having a plurality of C-shaped grooves having respective openings and at least one sheet of material. The at least one sheet of material comprises a closed-cell silicone foam rubber and is attached to the core member using a coil-shaped element and has a first free end portion extending away from the core member. The core member moves by rotation in a first direction such that a portion of the at least one sheet of material is brought into sliding contact with the surface in a repeating pattern. The sliding contact between the at least one sheet of material and the surface occurs under a pressure and relative velocity sufficient to generate a force that results in at least one of a cleaning, buffing, and polishing.

A method of performing at least one of a cleaning, buffing, and polishing action on a surface, without requiring water, comprises providing a core member having a plurality of C-shaped grooves having respective openings and at least one sheet of material. The at least one sheet of material comprises a closed-cell silicone foam rubber and is attached to the core member using a coil-shaped element and has a first free end portion extending away from the core member. The core member moves by rotation in a first direction such that a portion of the at least one sheet of material is brought into sliding contact with the surface in a repeating pattern. The sliding contact between the at least one sheet of material and the surface occurs under a pressure and relative velocity sufficient to generate a force that results in at least one of a cleaning, buffing, and polishing.

This application relates to flotation devices generally, and particularly to inflatable flotation devices configured for use by an infant to support the infant at least partially above the water and to at least partially retain the infant therein. In some embodiments, an apparatus is a flotation member having an inner perimeter, a top portion and a bottom portion. The flotation member has a first height between its bottom portion and its top portion at a first location of the flotation member. The flotation member has a second height between the top portion and the bottom portion at a second location of the flotation member, the second height different from the first height. The flotation member includes a support member at least partially disposed within the inner perimeter of the flotation member. The support member has a first portion coupled to the top portion of the flotation member at the first location. The support member has a second portion coupled to the top portion of the flotation member at the second location. The support member has a third portion between the first portion and the second portion, and the third portion is coupled to the bottom portion of the flotation member at a third location different from the first location of the flotation member and the second location of the flotation member.