Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise.

Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise.

The disclosure relates to a power-transfer unit for a sealing unit of a packaging machine comprising a support, intended to be attached to a sealing unit, a power bar comprising a contact-initiation section, a contact-termination section, and an intermediate section therebetween, the power bar being resiliently suspended in the support and being movable along a first direction being normal to a contact surface of the intermediate section. The power bar is suspended in the support by a first leaf spring.

The disclosure relates to a power-transfer unit for a sealing unit of a packaging machine comprising a support, intended to be attached to a sealing unit, a power bar comprising a contact-initiation section, a contact-termination section, and an intermediate section therebetween, the power bar being resiliently suspended in the support and being movable along a first direction being normal to a contact surface of the intermediate section. The power bar is suspended in the support by a first leaf spring.

A disinfection system includes an ozone water generator and a top seat. A base of the top seat has a top seat entrance and a top seat exit. A middle portion of an underside of the base is formed with an opening having a top seat inlet and a top seat outlet to communicate with the top seat entrance and the top seat exit. A power interface is provided on an outer cover of the top seat. Generator claws are interlocked with top seat claws. A generator mouth at a middle portion of the upper end of the ozone water generator is inserted into the opening. The generator mouth is formed with a generator inlet and a generator outlet to communicate with the top seat inlet and the top seat outlet. An anode and a cathode of the ozone water generator are movably connected to the generator control board through wires. The disinfection system is able to avoid unnecessary waste and improve convenience of use.

A disinfection system includes an ozone water generator and a top seat. A base of the top seat has a top seat entrance and a top seat exit. A middle portion of an underside of the base is formed with an opening having a top seat inlet and a top seat outlet to communicate with the top seat entrance and the top seat exit. A power interface is provided on an outer cover of the top seat. Generator claws are interlocked with top seat claws. A generator mouth at a middle portion of the upper end of the ozone water generator is inserted into the opening. The generator mouth is formed with a generator inlet and a generator outlet to communicate with the top seat inlet and the top seat outlet. An anode and a cathode of the ozone water generator are movably connected to the generator control board through wires. The disinfection system is able to avoid unnecessary waste and improve convenience of use.

Disclosed is a rotary steering drilling apparatus. The rotary steering drilling apparatus includes a plurality of cylinders that are fixedly connected in series, wherein at least a part of adjacent cylinders are in power connection via a power connection unit; the power connection unit includes a first electrical connecting assembly and a second electrical connecting assembly, the cylinder in power connection is provided with a first electrical connecting assembly at one end and a second electrical connecting assembly at the other end, the adjacent cylinders are in power connection via the first electrical connecting assembly and the second electrical connecting assembly, and the first electrical connecting assembly and the second electrical connecting assembly on the same cylinder are in power connection; the first electrical connecting assembly includes a first electrical connecting ring which is arranged annularly, and the first electrical connecting ring includes a plurality of first conducting regions and first insulating regions which are distributed circumferentially and are spaced apart; and the second electrical connecting assembly includes a second electrical connecting ring which is arranged annularly, and the second electrical connecting ring includes a plurality of second conducting regions and second insulating regions which are spaced apart. The rotary steering drilling apparatus according to the present application can achieve multi-path power connection between adjacent cylinders and has the advantages of being convenient to mount, high in conductivity reliability and the like.

A brush device (1) for electrically connecting a first element (2A) to a second element (2B) that can rotate relative to the first element (2A) about a rotational axis (L). In order to make electrical contact with the second element (2B), in a contact area (1A), the brush device (1) has a structure (1 B, 11B′, 1B″) that extends helically relative to the rotational axis (L). An E-machine (2) has a brush device (1) of this type, and a drive device has such an E-machine (2) for electrically driving a motor vehicle.

An electronic hinge system is provided, including a first component and a second component. The first component may include a first enclosure, a first substrate extending within the first enclosure, a first connector, and a plurality of curved elements disposed in the first connector. The first substrate may have electrically conductive elements and microelectronic devices electrically connected with the electrically conductive elements. The curved elements may be electrically conductive and spaced apart from one another. Each curved element may be electrically connected with a respective one of the electrically conductive elements of the first component. The second component may include a second enclosure and a second connector disposed at an end of the second enclosure. The first connector may be configured to mate with the second connector, such that when the first component is engaged with the second component, the first connector is rotationally coupled with the second connector.

Melting furnace (1), in particular for the production of metal alloys by melting alloying constituents, with a melting crucible (10), a cylindrical electrode rod (40) with a consumable electrode (41) attached thereto and a power supply (50) that is configured to supply the electrode (41) with power via the electrode rod (40), wherein the electrode rod (40) can be rotated about its own axis and moved along its own axis during the melting process.