Abstract: A portable power station that includes a box-shaped housing, an energy storage device which is arranged in the housing and is configured to provide an AC voltage, an AC voltage port arrangement at which the AC voltage for an external consumer, in particular a power tool and/or a vacuum cleaner, can be tapped, and a coupling interface for coupling the portable power station to at least one coupling object designed as a system box or vacuum cleaner, in order to form a vertically tension-proof stack together with the at least one coupling object.

Abstract: A motorized rotating apparatus for the interior, thermally insulated compartment of a refrigerator is described. The apparatus has one or more guiding tracks and one or more movable shelves that remain upright while being moved up or down. The apparatus employs a motor which is configured to automatically rotate the shelves, moving them vertically and horizontally in the process. The apparatus facilitates access to the contents of the interior of the refrigerator without needing to reach to the rear of the refrigerator, nor bend down to reach contents at the bottom of the refrigerated insulated compartment.

Abstract: A system for the detection, recording, and analysis of EMG data attained during exercise in real-time is described. The system employs a surface EMG sensor equipped with a Bluetooth or a Wi-Fi module. The sensor transmits sEMG data via Bluetooth or Wi-Fi to a smart device, which processes this data utilizing a preloaded application and informs the user of the efficacy of exercises with key statistics in real-time. A sensor box containing the EMG sensor also contains a pre-amplification circuit, an amplification circuit, a DC-offset circuit, and a signal smoothing and amplifier circuit to maximize the reduction of extraneous noise frequently observed with conventional sEMG sensors. A proprietary mobile device application receives, interprets, records, and displays the EMG data for the user.

Abstract: A motorized rotating apparatus for the interior, thermally insulated compartment of a refrigerator is described. The apparatus has one or more guiding tracks and one or more movable shelves that remain upright while being moved up or down. The apparatus employs a motor which is configured to automatically rotate the shelves, moving them vertically and horizontally in the process. The apparatus facilitates access to the contents of the interior of the refrigerator without needing to reach to the rear of the refrigerator, nor bend down to reach contents at the bottom of the refrigerated insulated compartment.