Abstract:
In various implementations, a vertical door system may include a door and a movement member that allows adjustment of the position (e.g., height) of the door. The door may be disposed in a track at a location. The vertical door system may include a safety brake that inhibits movement of the door when engaged and allows movement of the door when disengaged. The safety brake may include a pin that extends from the safety brake to contact a stop in the track to inhibit movement of the door when the safety brake is engaged.
Abstract:
A self-opening and self-closing device enabling entry into a controlled access area and comprising a gate with two laterally retractable panels (10, 12) that may be opened by inserting a ticket or access card into a control mechanism. Each of the panels is controlled by a respective motor operated by the control mechanism. Each panel is secured to at least two runner members (16, 20; 24, 28) that are each operated by a roller (30, 36; 42, 48) secured to a link arm (32, 38; 44, 50). The link arms are rotationally interconnected and rotated by the respective motor. Simultaneous rotation of the arms in opposite directions moves the two panels together (or apart) and thus closes (or opens) the entry device by moving each panel into a position in which it is locked by the respective arm in the horizontal position.
Abstract:
A negative-pressure smoke-guiding fireproof building structure includes at least one vertical smoke discharge flue arranged in the building and in fluid communication with a transverse smoke discharge flue arranged in upper space of each floor. At least one natural air inlet window having a door and at least one smoke-gas discharge window having a door are arranged in a wall of each independent room off each floor. The doors normally seal the windows in a closed position and are capable of automatically opening at a fire hazard. The smoke-gas discharge window is in fluid communication with the transverse smoke discharge flue. With a simple structure, the building structure effectively prevents fire spreading to peripheral adjacent rooms when one room in the building catches fire, so as to prevent a larger fire hazard.
Abstract:
A negative-pressure smoke-guiding fireproof building structure includes at least one vertical smoke discharge flue (1) arranged in the building and a transverse smoke discharge flue (2) arranged in upper space of each floor. The vertical smoke discharge flue (1) is in fluid communication with the transverse smoke discharge flue (2). At least one natural air inlet window (4) and at least one smoke-gas discharge window (5) are arranged in a wall (3-1) of each independent room (3) of each floor. The natural air inlet window (4) consists of an air inlet window (4-1), an air inlet window door (4-2) capable of sealing the air inlet window (4-1) in the normal state, and an air inlet window door opening mechanism capable of automatically opening the air inlet window (4-1) at a fire hazard. The smoke-gas discharge window (5) consists of a smoke discharge window (5-1), a smoke discharge window door (5-2) capable of sealing the smoke discharge window (5-1) in the normal state, and a smoke discharge window door opening mechanism capable of automatically opening the smoke discharge window (5-1) at a fire hazard. The smoke-gas discharge window (5) is in fluid communication with the transverse smoke discharge flue (2). With a simple structure, the building structure effectively prevents fire spreading to peripheral adjacent rooms when one room in the building catches fire, so as to prevent a larger fire hazard.
Abstract:
A sliding door automatic closing device is provided whereby a cylindrical tube is attached to the sliding door and a pulley housing is rotateably mounted to the top of the cylindrical tube. A cable is attached at one end to a cable housing, the housing mounted onto the frame header, and the cable is attached at a second end to a weight within the cylindrical tube. The bearing-mounted pulley housing allows the sliding door panel to breakout when needed and then be returned to its original position for continual use of the automatic closing feature without any mechanical adjustments. The bearing-mounted pulley housing, cable, and cable housing all remain in their original planar positions relative to the sliding door panel header; that is, these components do not breakout along with the sliding door panel.
Abstract:
A parking area control and management system employs a card reader, which reads identification information from a card commonly carried by a person, such as a driver's license or credit card. A record is made of the identification information upon entrance of a vehicle into the parking area. The person may subsequently leave the parking area on foot and regain entry to the parking area by presenting the same card. Later, the same card is used to exit the parking area, via the vehicle, and to validate that the same person is leaving with the vehicle. The parking area control and management system also includes sensors, such as loop detectors and electric eyes, to determine if a second vehicle or a pedestrian follows behind a vehicle entering into, or exiting from, the parking area. The parking area control and management system can be used to manage existing loop detectors and electric eyes, that normally control door and gate safety access systems, and to integrate those devices into an alarm system, such that an alert is issued whenever an abnormal or unauthorized event occurs during operations.
Abstract:
The present invention is provided with a mechanism for controlling the opening and closing of a door comprising a speed reduction means for reducing a rotational speed. A high speed shaft is connected to the speed reduction means and is connectable to a means for rotating the input shaft, and a low speed output shaft is connected to the speed reduction means. A governor is mounted on the input shaft for limiting the rotational speed thereof, to also regulate the rotational speed of the output shaft. A brake is provided for preventing rotation of the output shaft, and a self-closing mechanism is operatively connected to the door. The self-closing mechanism is adapted for storing energy when the door is opened to an open position, and a connecting means operatively connects the output shaft to the self-closing mechanism. A releasing means is provided for releasing the brake to permit rotation of the output shaft under the urging of the self-closing mechanism whereby the self-closing mechanism releases the energy stored therein so as to close the door to a closed position when the brake is released by the releasing means.
Abstract:
A device is described for the automatic closing of openings on a floating structure whereby the need for human or manual intervention is eliminated. Once the floating structure is subjected to tilting (heeling), lateral, or other accelerating forces, an unstable mass is used as a triggering device to remove a block from interfering with the path of the closure. The closure rolls down a ramp and covers an adjacent opening to seal it., thus preventing uncontrollable flooding or fire from spreading within the structure.
Abstract:
A safety curtain wall panel in a building is disclosed which includes a safety sash normally held in a closed position by a latch but which is automatically moved to an open position with respect to the panel when a sensing device detects an undesired atmosphere in the building. By this means smoke or heat detected will cause the sash to open permitting the building to be ventilated.
Abstract:
A separating link and operator particularly adapted as a substitute for the fusible links employed in prior art closure control systems. A first embodiment of the separating link has two link sections whose joinder is controlled by a pull wire latch. One section is a cam link section having an integral ball cam. The second section is a socket link section formed with a socket for receiving the cam in mating relationship. A pair of locks couple the link sections together. The latching engagement of one lock is dependent upon the latching engagement of the other or operating lock. The pull wire latch is connected to a magnetizable armature which reciprocates within a solenoid. Upon deenergization of the solenoid, the pull wire latch is removed from the operating lock thus disengaging this lock. The ball cam then partially separates the two links sections with a resultant disengagement of the dependent lock. Accordingly, the links sections are fully separated in response to external forces applied by a closure, for example. A modification is incorporated within a second embodiment by which each link is a sandwich of elements including a fusible layer. This embodiment thus fully separates in response to excessive heat which causes melting of one or both of the fusible layers, or, alternatively, in response to the removal of the pull wire latch.