An electromechanical biasing member for moving a closure panel between an open and a closed position relative to a motor vehicle body is provided. The electromechanical biasing member includes a housing having an inner cavity for housing an electric motor having a motor shaft and a rotary output member rotatable relative to the housing. An extension member within the housing and engageable with the rotary output member moves the closure panel between the open and closed positions in response to driving the electric motor. Also provided is a control unit positioned within the inner cavity and configured to drive the electric motor, the control unit including at least one controller board juxtaposed to the electric motor, and a plurality of control components mounted to the at least one controller board and configured to supply a drive signal to the electric motor and receive signals representative of operation of the electric motor.

A heating, ventilating, and air conditioning (HVAC) system includes an HVAC unit. The HVAC unit includes an enclosure having a panel disposed in a corresponding opening of the enclosure. The HVAC unit also includes a heat exchanger disposed within an interior of enclosure. Moreover, the HVAC unit includes an electromagnetic lock fixed to a surface of the interior of the enclosure. The electromagnetic lock is configured to retain the panel in a closed position relative to the enclosure.

An electromagnetic holding magnet and a method for manufacturing the same, and an electromagnetic locking element that, that in a preferred embodiment, is a lock in a container of an oxygen emergency supply system of an aircraft. The electromagnetic holding magnet includes a yoke and a retaining plate interacting with the yoke as an anchor. At least one permanent magnet generates a magnetic retaining flux in the yoke that includes a first yoke leg and a second yoke leg as well as a middle pole. The middle pole is surrounded in sections by a magnetic coil. The first and second yoke legs are arranged symmetrically in relation to the middle pole and the magnetic coil.

The present invention discloses a skylight operating system of a modular data center, so as to timely respond to a firefighting requirement of the modular data center to reduce occurrence of firefighting-related accidents. The skylight operating system comprises: an electric skylight; a firefighting environment index monitoring device arranged inside the modular data center; a monitoring and interacting device arranged in a monitoring room outside the modular data center, and connected with the electric skylight and the firefighting environment index monitoring device, the monitoring and interacting device adapted for receiving monitoring information of the firefighting environment index monitoring device, and opening the electric skylight upon determination that a firefighting-related issue occurs inside the modular data center.

A vehicle stowage assembly having a housing, a door and a retaining device. The housing has an opening. The door is movable between a closed position and an open position. The retaining device includes a ferromagnetic element, a permanent magnet, an electromagnet, a control unit and a detection device. The electromagnet is magnetically coupled to the ferromagnetic element and/or to the permanent magnet. The control unit controls the electromagnet the electromagnet to reduce the magnetic attraction between the housing and the door to a stop value of less than the nominal value during a stopping period following the detection of the arrival of the door near the closed position. The detection device is able to supply a signal representing the arrival of the door in the closed position to the control unit.

A magnetic lock is presented. The magnetic lock includes a base having a cylindrical opening disposed therein, and having a first magnetic element disposed in a bottom surface of the cylindrical opening of the base. The lock further includes an insert removably securable within the cylindrical opening of the base, the insert having a second magnetic element disposed along a bottom surface thereof. When the insert is inserted into the cylindrical opening of the base and the first magnetic element of the base is aligned with the second magnetic element of the insert the insert is locked within the cylindrical opening of the base. When the insert is rotated within the cylindrical opening of the base to a position wherein the first magnetic element and the second magnetic element are not aligned with each other the insert is removable from the cylindrical opening of the base.

A novel and useful degauss circuit for use with electromagnetic door locks. The door lock circuit is configured to provide a constant current to the electromagnetic coil load. A pulse width modulation (PWM) controller varies the frequency and/or duty cycle to a switch in series with the coil. Coil current feedback is used to adjust the PWM frequency and/or duty cycle so as to maintain the current through the coil at a certain level to maintain a desired holding force on the door lock. A degauss circuit inline with the current flowing through the coil is provided. When triggered either in an uncontrolled or controlled manner, a series RLC circuit that includes the coil inductance and resistance causes ringing to occur whereby the coil current reverses direction with sufficient amplitude and duration to degauss the coil.

A mounting assembly (10) for the electromagnet (12) of an electromagnetic door locking system, the mounting assembly (10) comprising: a main body portion (14) affixable, in use, to a door frame (18), the main body portion (14) comprising at least two channels adapted to receive a corresponding set of tabs associated with the electromagnet (12) and a set of locking screws (30) cooperating with the channels and being adapted, upon tightening, to deform the channels to clamp the tabs to fix the electromagnet (12) relative to the main body portion (14).

A gate system includes a first fixed support structure having a plurality of fixed rails defining respective passageways and a gate that moves relative to the fixed support structure between an open position and a closed position. The gate includes a plurality of gate rails that slide within the respective passageways as the gate moves between the open position and the closed position. Furthermore, the gate includes one or more compressible sheets coupled to the plurality of gate rails, and the one or more compressible sheets are configured to move from a compressed position to an expanded position as the gate moves from the open position to the closed position.

A method to automatically audit the number of units within an enclosure having at least one door includes receiving from a remote telemetry device data indicating the number of times within a predetermined period of time a door has been opened to a predetermined open position relative to the enclosure, the predetermined open position of the door being specifically calibrated by a sensor device being mechanically set when the sensor device is installed on the enclosure proximal to the door as a position of the door between a closed position and a more fully opened position beyond the predetermined open position, to generate a door opening count, wherein the remote telemetry device includes a sensor configured to be adjustably calibrated to sense when the door is at the predetermined open position relative to the enclosure based upon the adjustable calibration, to generate the door opening count. A remote telemetry device for automatically auditing the number of items within an enclosure having at least one door for removal and restocking of the items that includes a remote telemetry device in communication with at least one sensor device configured to be calibrated, the calibration of the sensor device being set when the sensor device is installed based upon the size of an item, the sensor configured to detect the door opening to a calibrated door open position, data indicative of the number of items within the enclosure to determine a current count.