A switching device for switching an electric motor, where the switching device is arranged on a component which is driven in rotation by the motor. The switching device is characterized in that a contactless, absolute position-measuring device, an evaluation unit for evaluating position signals and an output unit for outputting switching information for indirectly switching and/or directly switching the motor current as a function of a position signal are provided within a single housing.

A door operator system (1) for opening and closing an opening (2), comprising a door frame (3) comprising a first frame section (4) at a first side (5) of the opening (2) and a second frame section (6) at a second side (7) of the opening (2) and a door (8) arranged to be moved between an open (O) and closed (C) position. The door (8) is connected to the door frame (3). A drive unit (10) mounted on the door (8), whereby the drive unit (10) is moveably connected to first frame section (4) and the drive unit (10) is moveably connected to the second frame section (6), the drive unit (10) comprising at least one motor (11) connected to at least one energy storage device (12) arranged to power the at least one motor (11), the drive unit (10) being arranged to move the door (8) from the closed position (C) to the open position (O). The door operator system (1) further comprises an energy transmitting device (13, 14) disposed in close proximity to the door (8) and an energy receiving device (81) mounted on the door (8), whereby the energy transmitting device (13, 14) is configured to wirelessly transmit energy to the energy receiving device (81) mounted to the door (8), whereby the energy receiving device (81) is operatively connected to the at least one energy storage device (12) for charging said energy storage device (12).

A system for servicing a data center using an autonomous vehicle (AV) is provided. The system comprises the AV and the AV is configured to: receive a task to perform within the data center, wherein the data center comprises a plurality of servers associated with a plurality of enterprise organizations; navigate from an initial location within the data center to a new location within the data center along a path extending through a portion of the data center, the path being determined automatically; and while navigating the path and in response to encountering a movable barrier disposed along the path, performing a procedure to bypass the movable barrier such that the AV can continue navigating along the path.

An assembly for controlling the position of air inlets of an enclosure including an actuation rod which moves laterally and is positioned above and parallel with the air inlets, one or more actuation cables, where the first end of each actuation cable is attached to the actuation rod and the second end of each cable is attached to one or more of the air inlets and lateral movement of the actuation rod causes vertical movement of the actuation cables and attached air inlets.

A closure system including a curtain configured to seal an opening, a wireless network having a plurality of channels, at least one transmitter coupled to the curtain and configured to communicate over the plurality of channels, and an operator operatively coupled to the curtain and configured to communicate over the plurality of channels, the operator and the at least one transmitter configured to communicate with each other over a selected one of the plurality of channels based upon communication interference detected on one or more channels.

In example implementations, an end cap is provided. The end cap includes a body portion comprising a top end, a bottom end, a front side, a back side, an inner side, and an outer side, a plurality of openings aligned between the inner side and the outer side to receive a mechanical fastener to connect to an end of the panel, a cam lever coupled to the top end, wherein the cam lever is to rotate around an axis to generate a lift force to lift and separate an adjacent panel, and a plurality of wheels coupled to the inner side, wherein the panel moves along a horizontal track via the plurality of wheels aligned with the horizontal track.

Switch arrangements for powered doors are disclosed. A door includes a panel and a track to guide movement of the panel between an open position and a closed position. The track defines a track slot extending along an exterior length of the track. The door further includes a sensor target to be carried by the panel within the track. The door also includes a sensor selectively attachable to an exterior of the track via the track slot. The sensor to detect the sensor target when the panel is in a first position. The track defines an aperture to be positioned between the sensor target and the sensor when the panel is in the first position.

A device. The device includes a shaft having a longitudinal axis, a first end, and a second end. The device also includes a connector attached to the first end of the shaft. The device also includes a rod connected to the shaft. The rod comprises a third end and a fourth end. The third end is connected to the second end of the shaft. The rod is about parallel to the longitudinal axis. The device also includes a spring surrounding the rod. The spring is compressible or extendable along the longitudinal axis. The device also includes a stop connected to the rod at a position distal to the spring. The stop resists longitudinal compression or extension of the spring.

The present disclosure includes a retrofitted door brake cam. The retrofitted door brake cam may, in various embodiments, comprise a hub comprising a cylindrical central axle, a plurality of projections extending radially away from an outer circumference of the central axle, and/or a cam comprising a plurality of pins that hold the projections away from a channel wall of a brake housing. The pins may be configured to break away from the cam to release the projections into contact with the channel wall, and the pins may be fitted with a cover, such that the pins are capable of withstanding abrasion and wear. The cover may comprise a cylinder having an axially running aperture, and/or a beveled edge that shaves a layer of the outer surface from one of the plurality of pins as it is fitted over the pin.

The present invention relates to a sectional door operator system (1) for opening and closing an opening (2), comprising a door frame (3) comprising a first frame section (4) at a first side (5) of the opening (2) and a second frame section (6) at a second side (7) of the opening (2), a door (8) arranged to be moved between an open (0) and closed (C) position and comprising a plurality of horizontal and interconnected sections (9) connected to the door frame (3) at least a drive unit (10) mounted on a first section (9) of the plurality of sections (9), wherein the drive unit (10) is moveably connected to the first frame section (4) and the drive unit (10) is moveably connected to the second frame section (6), the drive unit (10) comprise at least one motor (11) connected to at least one battery (12) arranged to power the at least one motor (11), and the drive unit (10) is arranged to move the door (8) from the closed position (C) to the open position (0).