The present disclosure relates to a field of door/window hardware accessories, in particular to a door/window pulley, a pulley device, and a door/window. The present disclosure provides the bearing and the anti-deformation metal ring that can be in contact with the track, the anti-deformation metal ring use rigidity itself to effectively avoid generating indentation, and the door/window pulley is also difficult to be pressed to cause deformation. Moreover, the inner part of the injection molded body is filled between the bearing and the anti-deformation metal ring, which not only well transfers pressure bore by the anti-deformation metal ring when load-bearing to the bearing, but also restores the anti-deformation metal ring after slight deformation by giving an outward elastic support to the anti-deformation metal ring using elasticity of the injection molded body.

An electromagnetic induction hub includes a first disc having a first magnet, a second disc having a second magnet, a coil disc formed between the first disc and the second disc, a bearing penetrates the first disc, the second disc and the coil disc.

A system for monitoring and controlling shopping cart usage comprises a wheel assembly that attaches to a shopping cart. In some embodiments the wheel assembly includes a wheel, a brake that can be activated to inhibit rotation of the wheel, a controller that controls the brake, a VLF receiver, and an RF transceiver. The RF transceiver may, for example, operate in a 2.4 GHz frequency band. In some implementations, the RF transceiver may be used to detect entry of the shopping cart into a checkout area of the store, and the VLF receiver may be used to detect that the shopping cart is exiting the store. The controller may activate the brake if the shopping cart attempts to exit the store without first passing through a checkout area.

According to some embodiments, a manually-powered movable device comprises at least one wheel configured to move when a user operates the device, an electrical energy generating assembly, wherein the electrical energy generating assembly comprises a magnet assembly and a coil assembly, wherein the magnet assembly is configured to move when the at least one wheel is moved, wherein the coil assembly is configured to remain stationary relative to a frame of the device when the at least one wheel is moved, and wherein relative movement between the magnet assembly and the coil assembly generates electrical energy, at least one wire assembly coupled to the electrical energy generating assembly, and at least one output device coupled to the at least one wire assembly and configured to contribute to creation of a desired effect.

This application is directed to an apparatus for providing electrical charge to a vehicle. The apparatus comprises a driven mass, a generator, a charger, a hardware controller, and a communication circuit. The driven mass rotates in response to a kinetic energy of the vehicle and is coupled to a shaft such that rotation of the driven mass causes the shaft to rotate. The driven mass exists in one of (1) an extended position and (2) a retracted position. The generator generates an electrical output based on a mechanical input coupled to the shaft such that rotation of the shaft causes the mechanical input to rotate. The charger is electrically coupled to the generator and: receives the electrical output, generates a charge output based on the electrical output, and conveys the charge output to the vehicle. The controller controls whether the driven mass is in the extended position or the retracted position in response to a signal received from the communication circuit.

The disclosure is directed to methods and systems for provisioning mobile electric vehicles with various operational settings data transmitted over the air. A vehicle or its components may operate according to operational settings corresponding to operational settings data included in the vehicle components. A server that is remote to the vehicle may comprise operational settings data and may transmit operational settings data to the vehicle. The server may transmit operational settings data automatically, such as on a periodic basis, in response to a request, such as from a user or from a vehicle component or anytime new or updated operational settings data are available for the vehicle or its components.

A power generation system for an artificial lift system includes an electrical generator configured to output electrical power in response to rotation of a rotor of the electrical generator. The power generation system also includes a polish rod engagement wheel non-rotatably coupled to the rotor of the electrical generator. The polish rod engagement wheel is configured to engage a polish rod of the artificial lift system and to be driven to rotate in response to linear movement of the polish rod.

A power feeding device includes: a generator, the generator including a stator fixed to a wheel and a cylindrical rotor that rotates around a rotation axis of the wheel; an inertial member that is fixed to the cylindrical rotor and maintains a constant attitude by its own weight; a circuit board that is fixed to the stator and is mounted with a power feeding circuit to supply an output of the generator to a load; and a circuit receiving space that is provided inside the cylindrical rotor and receives a whole of the circuit board or an element that is mounted on the circuit board and protrudes from the circuit board.

This application is directed to an apparatus for providing electrical charge to a vehicle. The apparatus comprises a driven mass configured to rotate in response to a kinetic energy of the vehicle, the driven mass coupled to a shaft, where rotation of the driven mass causes the shaft to rotate. The apparatus further comprises a hardware controller. The hardware controller identifies output power parameters for the vehicle and generate a control signal based on the identified output power parameters for the vehicle. The apparatus also comprises a generator that generates an electrical output based on a mechanical input and a conditioning circuit electrically coupled to the generator. The conditioning circuit receives the electrical output from the generator and the control signal from the hardware controller, generates a charge output based on the electrical output and the control signal, and conveys the charge output to the vehicle.

Proposed are renewable power generating systems driven by wind or wheel power such as train vehicle power generating systems, which are easily installed on train vehicles of trains, and which generate power without additional carbon emissions to avoid environmental pollution. One or more generator holders to hold one or more generators are installable on a train vehicle chassis. A generator wheel may be configured to touch a rail and may rotate in any direction along the rail. A generator axle may couple one or more generators to the generator wheel. The one or more generators may generate electrical power and produce zero carbon emissions while the generator wheel rotate on the rail. One or more wind turbines may also be coupled to the generator axle to supply power to the one or more generators so that the one or more generators produce zero carbon emissions while the train vehicle is moving.