A wearable system, such as a footwear system, can employ a generator. The generator can be an electro-mechanical generator with a portion that spins to create an electricity. The portion that spins can be spun in such a manner that it does not stop, but instead a next spin beings before a previous spin completes. This can repeat until the generator reaches a terminal velocity.

A rotary tilling apparatus separates a power transmission system starting from a flywheel to a passive movement device through an elastic coupler from another power transmission system starting from the flywheel to a rotor of a motor generator, and thereby reduces a load applied to the rotor and prevents the power transmission system of the passive movement device from providing a negative effect to an engine and the rotor. A parallel hybrid power transmission mechanism includes an engine, a crank shaft disposed on the engine, a motor generator, a passive movement device configured to receive a motive power of the motor generator, an input shaft disposed on the passive movement device, a flywheel coupled to the crank shaft, an elastic coupler configured to couple the flywheel to the input shaft, and a rotor disposed on the motor generator and coupled to the fly wheel.

A rotary tilling apparatus separates a power transmission system starting from a flywheel to a passive movement device through an elastic coupler from another power transmission system starting from the flywheel to a rotor of a motor generator, and thereby reduces a load applied to the rotor and prevents the power transmission system of the passive movement device from providing a negative effect to an engine and the rotor. A parallel hybrid power transmission mechanism includes an engine, a crank shaft disposed on the engine, a motor generator, a passive movement device configured to receive a motive power of the motor generator, an input shaft disposed on the passive movement device, a flywheel coupled to the crank shaft, an elastic coupler configured to couple the flywheel to the input shaft, and a rotor disposed on the motor generator and coupled to the fly wheel.

A gravity rotary device including a first disk having a central axis; a peripheral axis of rotation arranged at a distance from and parallel to the central axis; a peripheral rotary shaft suitable for turning about the peripheral axis of rotation; and a mass support mounted on the peripheral rotary shaft and having a mass suitable for being moved away from the rotary shaft in order to produce torque causing the rotary shaft and the first disk to pivot. The device also includes a reduction gearing arranged between the peripheral rotary shaft and the first disk; a means for fastening at least a portion of the reduction gearing in a stationary position in order to prevent it from turning about the peripheral axis of rotation; a freewheel arranged on the peripheral rotary shaft; and means for modifying the angle of inclination of a mass support on the peripheral rotary shaft.

Various embodiments include a transmission element for a spring return of an actuating drive comprising: a toothed wheel element with teeth at least in sections; and a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction. The locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.

Various embodiments include a transmission element for a spring return of an actuating drive comprising: a toothed wheel element with teeth at least in sections; and a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction. The locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.

A number of variations may include a product comprising: a linkage system comprising: a first and second lever; a first interconnecting component and second interconnecting component operably connected to the first and second levers; a link bar having a first end with a first opening for receiving the first or second interconnecting component, and providing a clearance between the first opening and the first or second interconnecting component and; a second end with a second opening for receiving the first or second interconnecting component and providing a clearance between the second opening and the first or second interconnecting component; and a biasing device having a first and second end for engagement with the first and second interconnecting components and at least one section to allow for increasing or decreasing its length.

A system and method for using electrical power and mechanical means to store and release potential energy via mechanical means to re-generate electrical power. The system functions by using externally generated electricity to power an electric motor, which by rotation through a transmission of gears, deforms a collection of springs between two plates, thereby storing electricity as potential energy, until the energy is released to a kinetic flywheel which in turn powers an electric power generator.

A system and method for using electrical power and mechanical means to store and release potential energy via mechanical means to re-generate electrical power. The system functions by using externally generated electricity to power an electric motor, which by rotation through a transmission of gears, deforms a collection of springs between two plates, thereby storing electricity as potential energy, until the energy is released to a kinetic flywheel which in turn powers an electric power generator.

Aspects of the disclosure provide an electric actuator including a fail-safe mode of operation. The electric actuator includes a mechanical stop coupled to the output through the transmission, and a brake coupled to the second driving source through the transmission, the brake being engaged to establish the first pathway through the transmission between the first driving source and the output, the brake being disengaged to establish the second pathway through the transmission between the second driving source and the output, and the mechanical stop being engaged to restrict the output from rotating beyond the fail-safe position and the brake being disengaged to establish the third pathway through the transmission between the first driving source and the second driving source.