Abstract: A cleaning robot may determine a three-dimensional model of a physical environment based on data collected from one or more sensors. The cleaning robot may then identify a surface within the physical environment to clean. Having identified that surface, the robot may autonomously navigate to a location proximate to the surface, position an ultraviolet light source in proximity to the surface, and activate the ultraviolet light source for a period of time.

Abstract: A cleaning robot may determine a three-dimensional model of a physical environment based on data collected from one or more sensors. The cleaning robot may then identify a surface within the physical environment to clean. Having identified that surface, the robot may autonomously navigate to a location proximate to the surface, position an ultraviolet light source in proximity to the surface, and activate the ultraviolet light source for a period of time.

Abstract: A robot may identify a human located proximate to the robot in a physical environment based on sensor data captured from one or more sensors on the robot. A trajectory of the human through space may be predicted. When the predicted trajectory of the human intersects with a current path of the robot, an updated path to a destination location in the environment may be determined so as to avoid a collision between the robot and the human along the predicted trajectory. The robot may then move along the determined path.

Abstract: The present invention is directed to assemblies and sub-assemblies for incorporation into a chair, to a chair kit that comprises these assemblies and sub-assemblies, and to the chair itself. It includes substantially rectangular seat and back cushion sub-assemblies for incorporation into a chair. The seat and back cushion sub-assemblies may be readily removed from and replaced onto the chair itself, thereby facilitating the replacement of a rigidifying inner foam pad. The invention also includes a novel means of securing cushions to the chairs. This means comprises a rigid, substantially rectangular seat frame member having laterally opposed slots along its inner portion. At least one fixedly secured and at least one movably secured screw-receiving leg is attached to this seat frame member.