Abstract: A portal apparatus for securely controlling passage is described. The apparatus uses a passageway which includes at least two moveable door panels that operate in conjunction with at least two sidewalls including at least one linear sidewall. The apparatus includes position sensors for tracking a position of a subject passing through the passageway and determining a rate of movement of the subject. While the subject is walking through the passageway, each door panels is controlled to move at the determined rate of movement of the subject.

Abstract: An automatic door opening and closing device include a housing which may contain a control unit. A motor may be in electronic communication with the control unit, and a wheel may be coupled to the motor so that the motor may be operable to rotate the wheel in a clockwise direction and in a counter clockwise direction. A chassis may be configured to couple the motor to a door so that the wheel is in contact with a ground surface below the door. The motor may be operable to rotate the wheel clockwise across the ground surface to motivate the door in a first direction, and the motor may be operable to rotate the wheel counterclockwise across the ground surface to motivate the door in a second direction. By motivating the door in either the first direction or the second direction, the device may be configured to move the door into, out of, and between the open and closed positions.

Abstract: Electro-mechanical and electronically controlled access devices are described for controlling access to a building, premises or area in a secure manner such that a subject who is deemed ineligible for access will be barred entry. The devices contain multiple rotatable and moveable door panels. The door panels can be controlled by various drive mechanisms in order to control the passage through the device. The direction of flow through a device according to these embodiments is electronically controlled and may be changed at any point in time. At any instant in time, the flow through the device is unidirectional. Multiple devices can be stacked together to form clusters, which can be controlled according to traffic, time of day, or other factors.

Abstract: A main support frame is formed from sections of a plastic extrusion and has opposite side portions with peripheral recesses receiving an inner sash unit and outer sash unit each having a frame formed from sections of a plastic extrusion and supporting an insulated glass unit. Hinges support the dual sash units for pivotal movement between open and closed positions, and gear connected telescopic link members connect the main frame to the sash frames for simultaneous movement. A lock system includes a handle on the inner sash unit for moving straps with studs on the sash frames through a connector mechanism mounted on the main frame for simultaneously locking and releasing both sash units and for releasing only the inner sash unit. A screen and/or mini-blind may be supported between the sash units, and the window system with dual sash units may be constructed in various forms.

Abstract: A main support frame is formed from sections of a plastic extrusion and has opposite side portions with peripheral recesses receiving an inner sash unit and outer sash unit each having a frame formed from sections of a plastic extrusion and supporting an insulated glass window unit. Hinges support the dual sash units for pivotal movement between open and closed positions, and gear connected telescopic link members connect the main frame to the sash frames for simultaneous movement. A lock system includes a handle on the inner sash unit for moving straps with studs on the sash frames through a connector mechanism mounted on the main frame for simultaneously locking and releasing both sash units and for releasing only the inner sash unit. A screen and/or mini-blind may be supported between the sash units, and the window system with dual sash units may be constructed in various forms.

Abstract: A gate system (10) includes two spaced sides (12, 14) defining a work area (16) between the sides (12, 14). A first opening (18) is defined between first ends of the sides (12, 14), and a second opening (38) opposite to the first opening (18) is defined between second ends of the sides (12, 14). Two gates (82, 92) for opening/closing the first and second openings (18, 38) are respectively coupled with two shafts (40, 50) rotatably supported by one of the sides (12, 14). The shafts (40, 50) are rotatably interconnected wherein pivoting of one of the gates (82, 92) in a direction causes pivoting of the other gate (82, 92) in an opposite direction. Each gate (82, 92) includes a groove (85, 95) that receives a vertical beam (60, 62) of the other side (14) when the gate (82, 92) is in a closed position. Biasing elements in the form of gas cylinders (110, 120) between the side (12) and the gates (82, 92) prevent the gates (82, 92) from slamming into their closed positions.

Abstract: A substantially automatic, robotic-like system to aid in preventing crime in high trafficked buildings and other public sites, using only low voltage power, is described. In various modes it can protect public buildings such as schools, stadiums, open air markets, banks, office buildings from entrance of persons carrying weapons or separately trying to pass weapons into a protected area, even in the event of general power loss. Here a well designed, compact solution is provided for weapons detection and the detainment of persons attempting to disrupt, destroy or harm citizens in public buildings such as schools, banks, etc. with a minimum of restriction of access by persons regularly using the facilities. In other variations, it can be used to prevent unauthorized removal of costly or dangerous items from protected buildings or areas.

Abstract: A folding leaf gate comprising a post hung section hingedly attachable to a gate post and at least one leaf hung section hingedly connected in series with the post hung section by means of one or more section hinges, wherein the folding leaf gate additionally includes a rotating device associated with the or each leaf hung section and sharing a common axis of rotation with the or each section hinge and secured in a static relationship to a leaf hung section whereby rotation of the or each rotating device causes rotation of a leaf hung section about the or each section hinge, and one or more translating devices engaging the or each rotating devices, the one or more translating device being configured, when in use, to translate rotational motion of the post hung section about a gate post to rotation of the one or more rotating devices whereby simultaneously to open a gateway closed by the folding leaf gate and fold the folding leaf gate in two or more.

Abstract: Safety gate mechanism for use in protecting persons working around automobile service equipment installed in a floor pit comprising bi-parting gate sections mounted for movement between closed positions in front of the floor pit and open positions along side the floor pit, circuit means for automatically opening the gate sections once a signal is generated that a vehicle is to be placed in the floor pit area for service, and means in the circuit for locking and unlocking the gate sections and for reclosing the open gate sections in a desired time period should a vehicle fail to move into the floor pit area or after a vehicle has been removed from the floor pit area.