A window cleaning machine provided according to an embodiment of the disclosure comprises a resilient member disposed between a body and a first cleaning device to prevent external air from passing between the body and the first cleaning device and entering a primary suction space of the body.

A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing and an internal drive system within the spherical housing to propel the multi-body self-propelled device. The drive body can further include a magnet holder coupled to the internal drive system to hold a first set of magnetic elements. The coupled head can include a base plate to hold a second set of magnetic elements to create a magnetic interaction with the first set of magnetic elements through the spherical housing. The coupled head can further include a housing structure and a yaw motor that rotates the housing structure independently in relation to the base plate and the drive body.

A multi-body self-propelled device can include a drive body and a coupled head. The drive body can include a spherical housing and an internal drive system within the spherical housing to propel the multi-body self-propelled device. The drive body can further include a magnet support assembly comprising a rotating portion including a plurality of magnets and a stationary portion comprising one or more magnets. The drive body can further include a yaw motor to drive the rotating portion of the magnet support assembly. The coupled head can include (i) a corresponding rotating portion comprising a plurality of magnets in magnetic interaction, through the spherical housing, with the plurality of magnets of the magnet support assembly, and (ii) a corresponding stationary portion comprising one or more magnets in magnetic interaction with the one or more magnets of the magnet support assembly.

This invention describes a special type of drone called Flying User Interface device comprised of a robotic projector-camera system, an onboard digital computer connected with Internet, sensors, and a hardware interface to stick to any surface such as wall, ceilings, etc. Computer further consists of other subsystems, devices, and sensors such as accelerometer, compass, gyroscope, flashlight, etc. Drone flies from one places to another, detects a surface, and sticks to it. After successful sticking mechanism, device stops all its rotators and projects or augments images, information, and user interfaces on the near by surfaces. User interface may contain applications, information about object being augmented and information from Internet. User can interact with user-interface using command and gestures such as hand, body, feet, voice, etc.

An embodiment of the present disclosure relates to an unmanned flying robotic object that contains a wheeled mechanism that encircles its spherical exoskeleton. This feature allows the flying spherical vehicle to readily transform into a ground maneuverable vehicle. A robotic motor with differential speed capability is used to operate each wheel to provide effective ground maneuverability. There are examples provided herein of wheel configurations suitable for use with an embodiment. One is the straight-(or parallel) wheel design, and another is tilted-wheel design as are illustrated and discussed hereinafter. One embodiment of an unmanned flying robotic object taught herein is foldable.

An operating table floor platform is disclosed. The operating table floor platform has an omnidirectional drive assembly, which is configured so that the operating table floor platform is movable and rotatable by the omnidirectional drive assembly in any direction within a predetermined plane. The operating table floor platform also has a controller configured to control the omnidirectional drive assembly. The controller includes a manual actuation member. The controller includes a regulator that, based on the actuation of the manual actuation member, determines and sends control signals to the omnidirectional drive assembly.

A transport device includes a load carrying body, at least one central walking element, a first side walking element and a second side walking element, wherein the at least one central walking element is arranged in-between the two side walking elements. The walking elements are arranged at the load carrying body in a manner to be capable of moving up and down with respect to the load carrying body. The walking elements are arranged at the load carrying body in a manner to be capable of moving back and forth in horizontal direction with respect to the load carrying body, wherein the two side walking elements can move back and forth independently from the at least one central walking element via horizontal actuators.

A robot has a track assembly having tracks configured to move the robot in a first direction and a wheel assembly having wheels configured to move the robot in a second direction orthogonal to the first direction. A toggling assembly switches between the track assembly and the wheel assembly. The robot modules can mate with each other. The robot module has an elongated shaft with a head and a narrow neck. The shaft extends outward from the side of the robot module. A mating robot module has a clamping mechanism with opposing clamps which in an opened position receive the shaft. In a closed position, the clamps define an opening which matches and engages the cross-section of the neck of the elongated shaft. The clamping mechanism has a drive mode to drive the module, a clamping mode for docking, and neutral mode for alignment prior to clamping.

A robot has a track assembly having tracks configured to move the robot in a first direction and a wheel assembly having wheels configured to move the robot in a second direction orthogonal to the first direction. A toggling assembly switches between the track assembly and the wheel assembly. The robot modules can mate with each other. The robot module has an elongated shaft with a head and a narrow neck. The shaft extends outward from the side of the robot module. A mating robot module has a clamping mechanism with opposing clamps which in an opened position receive the shaft. In a closed position, the clamps define an opening which matches and engages the cross-section of the neck of the elongated shaft. The clamping mechanism has a drive mode to drive the module, a clamping mode for docking, and neutral mode for alignment prior to clamping.

A snowmobile including a frame including a tunnel; a motor; a rear suspension assembly; an endless track; and left and right skis operatively connected to the frame. When the snowmobile is at rest and unloaded on a horizontal ground surface, at least one of (i) a vertically highest one of the left suspension connections, and (ii) a vertically highest one of the right suspension connections, is disposed laterally inward of a lateral outermost edge of a corresponding one of the left body panel and the right body panel.