Electro-mechanical and electronically controlled access devices are described for automatically controlling passage between two areas, and where a plurality of such access control devices may be ganged or clustered to provided additional throughput and directional control, including stacking a plurality of access control devices side by side within a cluster. Each access control device contains multiple rotatable and moveable door panels. The door panels are controlled by various drive mechanisms to enable passage through the device, while ensuring by the use of sensors that door panels avoid touching subjects as they traverse the device. The direction of flow through a device according to these embodiments is electronically controlled and may be changed from time to time. At any instant in time while being traversed, the flow through each device is unidirectional. Multiple devices within a cluster can be directionally controlled according to traffic, demand, time of day, or other factors.

Disclosed is an automatic detachable door of a detachable type for a showcase. The automatic detachable door includes a plurality of foldable screens (30), of which a cover cap (40) is respectively fitted into upper and lower portions of the respective foldable screens (30), a first fitting protrusion (41) is mounted to one side of the upper cover cap (40), and a second fitting protrusion (47) is mounted to one side of the lower cover cap (40); and upper and lower frames (20 and 22) which are provided with a plurality of fitting holes (23) at a certain interval. Power transmission members (70) are fitted into the fitting holes (23) of the upper frame (20). A center of the power transmission member (70) is provided with a protrusion receiving hole (71) for receiving the first fitting protrusion (41). Two rod receiving holes (73) are formed at symmetric positions at an equal distance from a center the protrusion receiving hole (71). A coil spring (81) and a powered rod (80) are sequentially inserted into the respective rod receiving holes (73). An upper portion of the protrusion receiving hole (71) is provided with a locking shoulder (72) on which a holding bolt (46) for holding the first fitting protrusion (41) is seated. An upper portion of the first fitting protrusion (41) is provided at a center thereof with a fastening hole (45) to which the holding bolt (46) is fastened. A lower portion of the first fitting protrusion (41) is provided with a protrusion body (42) having an outer diameter larger than an outer diameter of the first fitting protrusion (41). A top surface of the protrusion body (42) is provided with two seating holes (43) at two symmetric positions at an equal distance from the center of the first fitting protrusion (41), in which the seating holes (43) are formed to receive front ends of the rods (80). The protrusion body (42) is engaged to a protrusion body seating member (44) formed on a top surface of the cover cap (40). The plurality of foldable screens (30) are simultaneously opened or closed by a rotating member mounted to the upper frame (20).

A railcar hatch control system and method for operating railcar hatches of a multi-railcar train is disclosed. A multi-railcar train may have a locomotive and a plurality of railcars having railcar hatches that can be opened and closed. The system and method may include displaying railcar identification information for the railcars on an operator display device, and receiving selections of railcars from an operator that will have a railcar hatch operation performed thereon, such as opening or closing the hatches. The railcar hatch operation is input, and the system and method control the railcar hatch operation being performed only on the selected railcars, and not on the railcars that have not been selected by the operator. The system and method may have operator interfaces devices at an operator station of the train, or at a remote location or on a remote device that communicates wirelessly with the train.

Disclosed is an automatic detachable door of a detachable type for a showcase. The automatic detachable door includes a plurality of foldable screens (30), of which a cover cap (40) is respectively fitted into upper and lower portions of the respective foldable screens (30), a first fitting protrusion (41) is mounted to one side of the upper cover cap (40), and a second fitting protrusion (47) is mounted to one side of the lower cover cap (40); and upper and lower frames (20 and 22) which are provided with a plurality of fitting holes (23) at a certain interval. Power transmission members (70) are fitted into the fitting holes (23) of the upper frame (20). A center of the power transmission member (70) is provided with a protrusion receiving hole (71) for receiving the first fitting protrusion (41). Two rod receiving holes (73) are formed at symmetric positions at an equal distance from a center the protrusion receiving hole (71). A coil spring (81) and a powered rod (80) are sequentially inserted into the respective rod receiving holes (73). An upper portion of the protrusion receiving hole (71) is provided with a locking shoulder (72) on which a holding bolt (46) for holding the first fitting protrusion (41) is seated. An upper portion of the first fitting protrusion (41) is provided at a center thereof with a fastening hole (45) to which the holding bolt (46) is fastened. A lower portion of the first fitting protrusion (41) is provided with a protrusion body (42) having an outer diameter larger than an outer diameter of the first fitting protrusion (41). A top surface of the protrusion body (42) is provided with two seating holes (43) at two symmetric positions at an equal distance from the center of the first fitting protrusion (41), in which the seating holes (43) are formed to receive front ends of the rods (80). The protrusion body (42) is engaged to a protrusion body seating member (44) formed on a top surface of the cover cap (40). The plurality of foldable screens (30) are simultaneously opened or closed by a rotating member mounted to the upper frame (20).

A heating appliance includes an appliance cabinet having a plurality of sidewalls that defining a heating cavity. A door is operably connected to at least one of the sidewalls and operable between open and closed positions. A vertical translating assembly extends from the appliance cabinet to the door. The vertical translating assembly includes drive and offset arms and a power assist mechanism in operable communication with the drive arm. The power assist mechanism at least partially operates the door between the open and closed positions.

Door operator systems are described herein that include the use of an adaptor. It should be understood that the adaptor may be utilized in order to operatively couple separate door operator assemblies together in a double door operator system. The adaptor may include control components (e.g., switches, buttons, toggles, levers, or the like) that are used to turn the door operator system on and off. While the adaptor may be used to operatively couple two separate door operator assemblies together to form a double door operator system, the adaptor may also be used within a single door operator system. Furthermore, with respect to double door operator systems, the system may also utilize a back plate assembly comprising two or more separate back plates (e.g., two or more back plate portions).

The system includes a series of operable louvers mounted on a four-sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four-sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.

A secure passageway is described where a subject is required to pass through two or more chambers in order to travel between two areas, typically where one area is secure and the other is not. For a passageway including first and second chambers, three electronically controlled doorways are included: one between the two chambers; one between a first chamber and a first area; and one between the second chamber and a second area. Sensors are included to determine how many subjects have entered a chamber. Sensors are also included to determine if a subject represents a threat. Subjects determined to represent a threat may be detained or encouraged to reverse direction and exit the passageway through the door where they entered. When a subject is determined to represent a threat, an alarm is optionally sounded.

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 louvre shutter comprising louvres 20 rotatably mounted in a frame on louvre axles, and a louvre drive system that, in summary, comprises a rack and pinion gear system including an externally operable rack assembly and a set of pinion gears 28 mounted to the louvre axles. The rack is externally operable rack and is reciprocably mounted in the drive system housing 42, 48. The pinion gears 28 mounted to the louvre axles are engaged with the rack such that reciprocation of the rack rotates the louvre 20 relative to the frame.