A ground-engaging device that is capable of sustained rolling, stable braking, secure standing, and walking. In one preferred embodiment, the invention relates to a wheeled footwear device. In another preferred embodiment, the invention relates to a wheeled footwear platform. In yet another preferred embodiment, the invention relates to a wheeled artificial foot.

A removable skateboard brake apparatus for easily adding and removing brakes to a skateboard includes a clip base having a base underside and a base top side. A clip top has a top underside and a top top side. The top underside is pivotably coupled to the base top side. A spring is coupled to the clip base and the clip top to bias the clip top towards the clip base. The clip base and the clip top are attached to a deck of a skateboard. A brake housing has a housing top side coupled to the base underside, a housing bottom side, a housing inner side, a housing outer side, and a pair of housing lateral sides. A brake pad is coupled to the brake housing. The brake pad is coupled to the housing bottom side to contact a wheel perimeter of a wheel of the skateboard.

The present utility model discloses a roller skate. The rollers are divided into the front roller group and the rear roller group, and the rear roller group is rotatably disposed at the bottom of the skate body through the reversing mechanism, so that switching of the rear roller group between line arrangement and row arrangement is realized, the scope of application of the roller skate is effectively extended, and the roller skate has higher practicability.

Systems and methods for intelligent data center power management and energy market disaster recovery comprised of data collection layer, infrastructure elements, application elements, power elements, virtual machine elements, analytics/automation/actions layer, analytics or predictive analytics engine, automation software, actions software, energy markets analysis layer and software and intelligent energy market analysis elements or software. Plurality of data centers employ the systems and methods comprised of a plurality of Tier 2 data centers that may be running applications, virtual machines and physical computer systems to enable data center and application disaster recovery from utility energy market outages. Systems and methods may be employed to enable application load balancing and data center power load balancing across a plurality of data centers and may lead to financial benefits when moving application and power loads from one data center location using power during peak energy hours to another data center location using power during off peak hours.

A self-balancing board is provided, comprising a primary wheel assembly, a platform, at least one sensor, a controller, a first auxiliary wheel assembly, and a first brake element. The primary wheel assembly comprises a primary wheel and a motor driving the primary wheel. The platform is secured to the primary wheel assembly and has a foot deck. The at least one sensor senses the orientation of the platform. The controller receives data from the at least one sensor and controls the motor in response to the received data. The first auxiliary wheel assembly is secured to the platform distal the primary wheel assembly, and is elevated from contacting a flat surface upon which the primary wheel rests when the foot deck is parallel to the flat surface. The first brake element is manually movable relative to the first auxiliary wheel assembly to engage the first auxiliary wheel assembly to provide resistance to rotation of the first auxiliary wheel assembly.

A multi-link wheel base includes a main body composed of a plurality of links connected in series and wheels provided on the main body, and the wheels are provided on the link assembly the link assembly includes an intermediate link and an end link, wherein both sides of the intermediate link are provided with a rotational connection position, one side of the end link is provided with a rotational connection position, and the rotational connection positions on the adjacent link assemblies are rotationally connected by means of a connecting device.

Disclosed are an optical rotating wheel and a self-balancing vehicle. The optical rotating wheel of the present application includes a stationary component, a moving component, a light source connected with the stationary component, and a laser plate connected with the moving component, in which the stationary component is fixedly connected with the vehicle body and relatively static with respect to the vehicle body, while the moving component is rotationally connected with the stationary component. Moreover, the laser plate is provided with a laser dot which displays a preset pattern under an illumination of the light source, and when the moving component rotates, the preset pattern rotates around the light source. In such a way, a dynamic optical pattern is obtained in the optical rotating wheel and self-balancing vehicle.

A human-machine interaction vehicle includes a vehicle body and a pair of wheels coupled with the vehicle body. The vehicle body includes a support frame, at least one pedal disposed on the support frame, a first position sensor, and a controller. The support frame is rotatably connected to the wheels. The first position sensor is configured to detect attitude information of the two pedals relative to the support frame. The actuation device drives the wheels to rotate based on the attitude information. The human-machine interaction vehicle includes a support frame, and the pedal is arranged on the support frame independently.

Devices and methods of transport are disclosed. Various embodiments include structural aspects related to steering and changing the direction of conveyances including features which utilize leaning or shifting of weight as part of turning.

A multi-link wheel base includes a main body composed of a plurality of links connected in series and wheels provided on the main body, and the wheels are provided on the link assembly the link assembly includes an intermediate link and an end link, wherein both sides of the intermediate link are provided with a rotational connection position, one side of the end link is provided with a rotational connection position, and the rotational connection positions on the adjacent link assemblies are rotationally connected by means of a connecting device.