An earplug dispenser for contactless operation by a user having a container portion for receiving a plurality of earplugs. A dispensing portion is coupled to the container portion. The dispensing portion has a motor and a rotor coupled to the motor. The rotor has a plurality of rotor openings to receive individual earplugs in each rotor opening. The dispensing portion also has a dispensing opening. The motor rotates the rotor to dispense earplugs through the dispensing opening.

A motor assembly includes a motor, a controller controlling at least one aspect of operation of the motor, and a control housing defining a control chamber. The controller is in part received within the control chamber. The controller includes a main electronics board and a modular connector assembly. The modular connector assembly includes a secondary electronics board and a connector at least in part supporting the secondary electronics board. The connector includes an inner connector portion and an outer connector portion. The connector extends through the control housing such that the inner connector portion is disposed inside the control chamber and the outer connector portion is disposed outside the control chamber. The outer connector portion defines a first access portal facilitating access to a first component of the secondary electronics board.

A motor assembly includes a motor, a controller controlling at least one aspect of operation of the motor, and a control housing defining a control chamber. The controller is in part received within the control chamber. The controller includes a main electronics board and a modular connector assembly. The modular connector assembly includes a secondary electronics board and a connector at least in part supporting the secondary electronics board. The connector includes an inner connector portion and an outer connector portion. The connector extends through the control housing such that the inner connector portion is disposed inside the control chamber and the outer connector portion is disposed outside the control chamber. The outer connector portion defines a first access portal facilitating access to a first component of the secondary electronics board.

A coupler between an activator mounted on an enclosure and an electronic protection device located within the enclosure facilitates alignment between the coupler and the electronic protection device during installation and requires no tool for installation. The coupler is positioned over an opening in the electronic protection device and oriented such that a first coupling portion is configured to engage a complementary coupling portion on the electronic protection device. The coupler may be manually mounted, engaging the complementary coupling portions on the door handle coupler and the electronic protection device without requiring a tool for installation. The coupler includes an upper sleeve configured to receive an axle, connected to the activator, that rotates independently of a lower sleeve which is mounted to the electronic protection device, facilitating orientation of the activator on the outside of the enclosure. The coupler provides for local lock-out of the electronic protection device.

A coupler between an activator mounted on an enclosure and an electronic protection device located within the enclosure facilitates alignment between the coupler and the electronic protection device during installation and requires no tool for installation. The coupler is positioned over an opening in the electronic protection device and oriented such that a first coupling portion is configured to engage a complementary coupling portion on the electronic protection device. The coupler may be manually mounted, engaging the complementary coupling portions on the door handle coupler and the electronic protection device without requiring a tool for installation. The coupler includes an upper sleeve configured to receive an axle, connected to the activator, that rotates independently of a lower sleeve which is mounted to the electronic protection device, facilitating orientation of the activator on the outside of the enclosure. The coupler provides for local lock-out of the electronic protection device.

A switching device for an electric motor comprises a fixed body, at least one moveable body that can be moved with respect to the fixed body between at least one first and one second position, in which the phases (104, 105, 016) are respectively in a first and a second electrical configuration, and a moving unit configured to move said moveable body between the first and the second position. This moving unit can be selectively coupled to the rotor of the electric motor so as to rotate with it and comprises a selecting device operationally placed between the rotor and the moveable body of the switching device and configured to transform each revolution of the rotor into a movement of the moveable body between the first and the second position.

A switching device for an electric motor comprises a fixed body, at least one moveable body that can be moved with respect to the fixed body between at least one first and one second position, in which the phases (104, 105, 016) are respectively in a first and a second electrical configuration, and a moving unit configured to move said moveable body between the first and the second position. This moving unit can be selectively coupled to the rotor of the electric motor so as to rotate with it and comprises a selecting device operationally placed between the rotor and the moveable body of the switching device and configured to transform each revolution of the rotor into a movement of the moveable body between the first and the second position.

The disclosure relates to a method for controlling a motor of a hand-held power tool by means of a blockable operating element, wherein a first position and a second position of the operating element are ascertained. According to the disclosure, the motor remains deactivated if a deviation of the ascertained first position from the ascertained second position is less than a threshold value.

The disclosure relates to a method for controlling a motor of a hand-held power tool by means of a blockable operating element, wherein a first position and a second position of the operating element are ascertained. According to the disclosure, the motor remains deactivated if a deviation of the ascertained first position from the ascertained second position is less than a threshold value.

An electric machine with variable torque generation having a tunable Halbach array configuration. The electric machine includes a magnet assembly for generating a magnetic field. The magnet assembly includes a plurality of fixed magnets disposed in a ring arrangement so that fixed magnets having a north pole faced toward the rotor or stator are alternated with fixed magnets having a south pole faced toward the rotor or stator, a plurality of rotatable magnets disposed within a respective slot formed between two adjacent fixed magnets, a drive assembly for turning the rotatable magnets within the slots to vary the magnetic field generated by the magnet assembly in the rotor or stator, the drive assembly configured to turn the rotatable magnets between a first position wherein the magnetic field in the rotor or stator is augmented and a second position wherein the magnetic field in the rotor or stator is cancelled.