Abstract: An apparatus for shutting off power to a gate motor is disclosed when the gate to which the gate motor is connected is opened or closed manually. In a preferred embodiment a sensor is activated that immediately shuts off power to the gate motor upon insertion of a crank into a receptacle on a pulley of the power driven gate movement system to commence manual opening or closing of the gate with the crank. Rotation of the crank in the appropriate direction either opens or closes the gate. Power is restored to the gate motor when the sensor determines that the crank has been withdrawn from the pulley.

Abstract: A security entrance system for controlling access from an infeed area (98) to a protected area (100) has a structure (24) defining a chamber disposed between the infeed area, the protected area and a temporary containment area (201), with a first door (38) at the infeed area portion of the chamber, a second door (46) at the protected area portion of the chamber, and a third door (47) at the temporary containment area portion of the chamber. A person entering the protected area must pass through a contraband detector such as a metal detector (90,92) and enter the chamber. If no alarm was provided by the detector, the doors allow exit from the chamber into the protected area. If an alarm was provided by the metal detector, the doors only allow the person to enter the temporary containment area. The chamber is weighed or otherwise examined after at least some cycles of operation to assure that no contraband was concealed within the chamber.

Abstract: The invention relates to a decompression unit for equalizing an explosive air pressure between pressurized areas of an aircraft, which have different air pressure conditions and are separated by a wall structure. An air chamber, whose shape alters by contraction (1), is located inside an exterior zone of the cabin (6) and is subjected to an ambient air pressure (p1), said chamber constituting the decompression unit in concrete terms. The wall of the air chamber (1) is perforated. The air chamber is mounted in the vicinity of the periphery of an air pressure equalization flap (2), which is fixed inside an air equalization cavity (9). Said air chamber is connected to a locking device (4), which likewise fixes the air pressure equalization flap in the air equalization cavity.

Abstract: An electronic service reminder to automatically notify a user as to when and what type of maintenance should be performed on the garage door operator, based on a variety of factors, including time, materials and operating environment. The garage door operator is configured to automatically generate an electronic service reminder in the form of an audible or visual alert based on one or more operating parameters of the garage door operator meeting or exceeding a predefined threshold. The predefined threshold is variable based on the values of the operating parameters.

Abstract: A drive system for closing devices, for example gates or shutters, with a variable speed output drive and a device for detecting a given characteristic of the drive, and is varied to maintain a substantially constant speed of the closing device as it moves between the open position and the closed position.

Abstract: An apparatus for shutting off power to a gate motor is disclosed when the gate to which the gate motor is connected is opened or closed manually. In a preferred embodiment a sensor is activated that immediately shuts off power to the gate motor upon insertion of a crank into a receptacle on a pulley of the power driven gate movement system to commence manual opening or closing of the gate with the crank. Rotation of the crank in the appropriate direction either opens or closes the gate. Power is restored to the gate motor when the sensor determines that the crank has been withdrawn from the pulley.

Abstract: A method and an apparatus for testing the unlatching torque of a cassette pod door in order to determine whether a cassette pod door is completely unlatched by latch keys of a door opener in a loadport. When a failure of unlatching operation is indicated, the apparatus reverses the rotational direction of the DC motor and thus, turning the latch keys in an opposite direction to re-latch the cassette pod door onto the cassette pod so that the pod can be securely removed from the loadport without danger of accidental opening of the door.

Abstract: The present invention distinguishes door closing actions between the one effected when an object leaves a prescribed area (i.e. the door closing action resulting from “signal discontinuation due to the exit of an object”) and the one effected when an object remains stationary within the area for a certain period of time (i.e. the door closing action resulting from “forced signal discontinuation in the presence of a stationary object”). Regarding the latter case, the present invention protects a person who stops in the area, by setting the door to close at a low speed and/or issuing a vocal warning. This door closing action can reduce the risk of hitting the person with the door.

Abstract: In a door closing procedure, an aircraft passenger door is pivoted from an open position to a pivoted-in position, shifted to a closed position, locked into a locked condition, and then secured into a secured locked condition. A control method and arrangement for controlling the closing procedure includes sensors that respectively each sense the completion of a respective allocated one of the steps of the closing procedure, and then responsively initiate the next following step of the procedure. The closing procedure is carried out in an automatic sequential step-wise manner using a simple robust arrangement, without requiring a computer control.

Abstract: A seismic sensor controlled door unlocking system which has a vibration sensor and a control system. The vibration sensor is configured to detect heavy vibrations such as those made by an earthquake. The control system maintains the locked state of, and has the ability to unlock, a door to which it is connected. Upon detection of a large vibration by the vibration sensor, the control system unlocks the door.

Abstract: The invention relates to a method and an arrangement for driving door installations as a function of the presence of person wherein the region of the door installation is continuously observed by at least one videocamera. According to the invention through the videocamera and/or suitable sensors, object motions within the space to be monitored are acquired with an analysis being carried out in conjunction with the video image of whether or not the moving object is a person. If this is the case, its location and/or direction of movement is determined and the door installation is driven as a function thereof. The videocamera is preferably disposed approximately diametrically opposite the door installation with its angle of view being directed as steeply as possible onto the region to be monitored. The videocamera is connected to an electronic image processing device.

Abstract: A security entrance system for controlling access from an infeed area (98) to a protected area (100) has a structure (24) defining a chamber disposed between the infeed area and the protected area, with first doors (38) at the infeed end of the chamber and second doors (46) at the protected area end of the chamber. A person entering the protected area must pass through a contraband detector such as a metal detector (90, 92) and enter the chamber. If no alarm was provided by the detector, the doors allow exit from the chamber into the protected area. If an alarm was provided by the metal detector, the doors only allow the person to pass back from the chamber into the infeed area and away from the protected area. The chamber is weighed or otherwise examined after at least some cycles of operation to assure that no contraband was concealed within the chamber.

Abstract: An access device for a materials depository includes a panel member having opposing front and rear faces with a return aperture disposed therethrough, a door having size dimensions capable of fully blocking the return aperture, and a door actuator coupled to the door for causing the door, in response to a command signal, to selectively slide between a blocking position where the return aperture is blocked by the door, and an unblocking position where the return aperture is not blocked by the door. The access device also includes a materials sensor for providing a materials alarm signal that is indicative of a presence of materials intended to be passed through the return aperture. The access device further includes a control system that is responsive to the materials alarm signal, for providing the command signal.

Abstract: A control method of sliding a vehicle door by a powered sliding device with a clutch mechanism comprises the steps of stopping a motor in a state that a rotation of a wire drum is restricted by an auxiliary brake when the slide door reaches at a desired semi-open position; displacing the clutch mechanism into a second coupled state by the motor while the auxiliary brake is actuated; releasing the restriction by the auxiliary brake when a predetermined time has elapsed.

Abstract: A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.

Abstract: A maintenance station monitors and maintains a plurality of automatic door systems at remote locations. Each door system includes a control unit for controlling the operation of an automatic door, and a self-diagnosing arrangement which operates in conjunction with the control operation of the control unit, to inspect the automatic door system for malfunctioning or broken part of the door system. When a failure is found in the automatic door system, the self-diagnosing arrangement of that door system sends information identifying that door system and information identifying the malfunctioning or broken part to the maintenance station via modems and telephones.

Abstract: The invention relates to a sliding door with two outer side-pieces extending from a building wall and surrounding a building entrance/exit, with at least one moving panel associated with the two side-pieces which closes or opens an entrance/exit as a result of its movement into a closed or open position, and with a ventilation system which, by means of at least one blower nozzle that is located so that it can pivot between the interior and exterior of the building, blows air into the building entrance/exit area, whereby the blower nozzle is coupled with a air speed indicator so that the pivoting angle of the blower nozzle can be adjusted as a function of the outside pressure on the outside of the building as measured by the air speed indicator.

Abstract: The invention relates to a device for preventing insertion from the outside of instruments that could pivot the control bar situated on the inside of the skylight. The device is constituted by a box and two narrow strips positioned in an offset manner so as to form a baffle preventing any instrument being inserted while leaving a free passage for ventilation air. Spacers serve to stiffen the assembly. A cap protects the control lever for opening the lock of the skylight, and a fork enables the latch existing on the skylight to be moved.

Abstract: A platform sensing and control system including a wireless sensor (10, 12) for sensing at least the presence of a platform (26) opposite a door (32) of a railcar and providing an output indication of at least a platform presence in response thereto, and a door control controller (14) operative in response to the output indication of at least platform (26) presence for enduring that normally a door (32) is not opened other than when a platform (26) is located opposite such door (32).

Abstract: A movable barrier operator includes a wall control switch module having a learn switch thereon. The switch module is connectable to a control unit positioned in a head of a garage movable barrier operator. The head unit also contains an electric motor which is connected to a transmission for opening and closing a movable barrier such as a garage door. The switch module includes a plurality of switches coupled to capacitors which, when closed, have varying charge and discharge times to enable which switch has been closed. The control unit includes an automatic force incrementing system for adjusting the maximal opening and closing force to be placed upon the movable barrier during a learn operation. Likewise, end of travel limits can also be set during a learn operation upon installation of the unit.

Abstract: A collapsible panel forming a separation structure between a generally closed inner environment and an outer environment, for instance consisting of a motorvehicle stratified window, incorporating within its mass at least one explosive charge to which an igniter/detonator device is operatively associated to produce detonation of the explosive charge so as to shiver the panel in a controlled way substantially within the plane thereof.

Abstract: The invention concerns a drive for closing devices, for example gates or shurrers, with variable speed output drive and a device for detecting a given position of the closing device. According to the invention, the drive speed output depends on the position of the gate and can be controlled depending on the given mechanical closing characteristic of the closing device.

Abstract: An automatic-shutter system functions as a counter-measure to the in-band frequency agile laser threat posed to the eyes of pilot(s)/operator(s). Ideally it is desirable to protect the operator from every laser pulse including the first. However, the lack of fast shutters or optical gates (faster than a micro-second) suitable for visible usage has prevented the protection from a first pulse threat. The automatic-shutter system detects the first pulse and provides protection against any subsequent pulses. This is achieved by a multi-directional detector system for actuating shutters on the aircraft/vehicle. The detector, after detecting a pulse of laser light, further comprises processing means in electrical communication with the multi-directional detector for processing a detected pulse of laser light and to generate a signal responsive thereto. A plurality of shutters can be individually or group dropped in response to shutter actuating means to provide protection against subsequent pulses of laser light.

Abstract: A power drive system is adapted for a sliding door mounted on at least one side of a vehicle for sliding movement forwardly and rearwardly of the vehicle. The system includes a reversible motor. A bracket is guided within a guide along a fixed path between the opened and closed positions of the door. An elongated drive member is slidably disposed within the guide and connected to the bracket at one end for driving the bracket along the fixed path. A translator mechanism operably engages with the drive member for powering movement of the door. The translator mechanism can include a rotatable hub, operably engageable with the drive member, a gear transmission for driving the hub, and a clutch mechanism for connecting the motor to the transmission. The translator mechanism preferably has sufficient power to pull the sliding door into a primary latch position with respect to the corresponding portions of a latch mechanism attached to the door and frame defining the door opening.

Abstract: An improved motor vehicle roof is provided which includes a roof opening provided in a fixed roof surface, at least one closing element for selectively at least partially closing the roof opening, an electrical adjusting drive for driving the closing element and a sensor engineering system for detecting a situation which adversely affects the safety of the passengers and for producing a corresponding danger signal. Importantly, the roof includes a quick-action closing device coupled to the sensor engineering system which causes the closing element to close from its open or partially open position when a danger signal is present. The closing device includes means for producing an electrical voltage which exceeds the normal feed voltage (rated voltage) of the adjusting drive by several times, and for applying the voltage to the electric adjusting drive.

Abstract: Method and apparatus for automatically controlling the opening and closing of a door by: (a) ultrasonically monitoring a predetermined approach area located in front of the door for the entry of an object into the approach area and the movement of the object towards the closed door; (b) ultrasonically monitoring a predetermined opening-door protect area laterally outwardly of the outer end of the closed door, and a predetermined closing-door protect area inwardly of the inner end of the door for the presence of an object in the opening-door and closing-door protect areas; and (c) controlling a drive in response to the above monitoring operations.

Abstract: A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.

Abstract: A movable barrier operator system includes a barrier-motor electrical driver, a first input device for receiving operating commands, a second input device for developing system status and a controller for storing a record of all input commands received and a record of all events occurring to the movable barrier and for enabling operation of the electrical driver in response to an input command. The first input device may be a DTMF receiver or a telephone entry system. Events stored include barrier obstructions and barrier operator failures. The controller, responsive to a stored event, enable the telephone entry system to contact a service provider. For facilities with multiple barriers and a DTMF receiver at each operator, a special circuit normalizes the amplitude of a transient analog tone burst (such as from a DTMF transmission) without any transient level overshoot.

Abstract: A safety system for reducing the risk of a suffocation accident occurring in a grain bin is disclosed. The disclosed safety apparatus includes an electrical switch in circuit with the motor of an auger mounted in the grain bin for discharging grain therefrom. The switch has a first state wherein the switch prevents operation of the motor and a second state wherein the switch permits operation of the motor. The disclosed apparatus also includes a cover mounted adjacent the access opening for movement between a first position wherein the cover precludes human entry through the access opening and a second position wherein the cover is displaced from the first position. The switch and the cover are positioned to place the switch in the second state when the cover is in the first position and to place the switch in the first state when the cover is displaced from the first position. The apparatus is further provided with a latch for securing the cover in the first position.

Abstract: An open/close control system for a vehicle slide door includes in one embodiment, a drive source, e.g., a motor, a slide door opening/closing mechanism, a clutch for transmitting a drive force of the drive source to the opening/closing mechanism interruptively, movement signal generator for generating a signal dependent on the moving direction of the slide door, and slide door controller for controlling the drive force to be transmitted to the opening/closing mechanism by controlling the drive source and the clutch. The slide door controller stops the operation of the drive source and thereby stops the slide door, declutches the clutch to allow the slide door to be movable, detects a movement of the slide door caused by its weight by use of an output signal of the movement signal generator, and determines an inclination of the vehicle on the basis of the detection result.

Abstract: A power window apparatus is provided for detecting pinching in accordance with the opened/closed position of the window and a state of rotation of a motor, the apparatus having a position sensor which detects a safety-control suspension region of the window and which is an accurate sensor. A spiral guide groove is formed in the inner surface of a housing opposite to a rotational plate which is rotated by an output shaft of a motor which opens/closes a window. A follower which is guided by the spiral guide groove is able to move along a straight guide groove provided for the rotational plate in the radial direction. Terminals in the form of conductive films are provided for a printed circuit board accommodated in the housing. When the rotational plate has been rotated, the follower is guided by the spiral guide groove so as to be moved in the straight guide groove. Thus, a slide member provided for the follower is brought into contact with the terminals so that the terminals are conducted with each other.

Abstract: A door has a first outer face having an opening therein and a second outer face spaced a predetermined distance apart from the first outer face. A hold open device is located substantially between the first and second outer faces. The hold open device holds the door in an open position. A smoke detector is also located substantially between the first and second outer faces adjacent to the opening. The smoke detector is electrically coupled to the magnetic hold open so that upon detection of smoke, the smoke detector causes the hold open to release the door from an open position to a closed position.

Abstract: A materials handling apparatus including a closure door which can be selectively operated to open or close the access opening in the apparatus. The door is operated by means of an air cylinder under the control of an air valve and an electronic control.

Abstract: A window pane is slidably driven in two guides by an electric motor. A piezoelectric vibrator vibrates the window pane to facilitate sliding movement of the window pane relative to the guides and a delay relay enables the vibrator to start operation before the motor is actuated.

Abstract: A gate movement drive comprises a motor movement unit (11) with linear-movement actuator and a sensing device (14) for detection of an angle which is a function of the gate position. The linear movement actuator (11) has its ends pivoted to respective supports (24,32) designed for fastening of the actuator between a fixed part and a wing of a gate which is pivoted to a rotation axis (23). The sensing device (14) is connected between the actuator and one of the supports (24,32) for detection of the angle of rotation between the actuator and the support.

Abstract: A vehicular slide door open-close control apparatus for opening a slide door installed at a side of vehicle body by means of the drive source such as a motor and the like. The purpose of the apparatus is to reduce a burden applied to the slide door moving from its full-open position along its close direction, downsize, lighten and lower the cost. Also, reducing an operational force when the door is manually closed. The control apparatus has a drive source 54 such as motor and the like, a slide door 3 open-close-moved by a slide door open-close mechanism, a clutch means 56 transmitting intermittently a drive force of the drive source 54 to the slide door open-close mechanism, a slope judgement means 76 detecting a vehicle posture and a slide door control means 7 controlling the drive source and clutch means in order to adjust a drive force to be transferred to the slide door open-close mechanism.

Abstract: A detector in a space to be sensed and controlled gives an electrical signal upon fumes in the space reaching a predetermined level. An electrical circuit is thereby energized to operate a fan to exhaust the space. Inlet and outlet openings in the structure enclosing the space are biased closed but open in response to air pressure on operation of the fan. Also the main door is opened by mechanism actuated by the signal. When the main door is open, the circuitry for opening the main door is open, and there is no actuating the apparatus.

Abstract: An entry control and security system in the form of a pre-assembled door and door frame unit having an electric light, a motion detector, a radiant energy receiver and an electromechanically actuated latch all disposed on and built into the door frame. The invention provides an economically manufactured and easily installed unit which allows persons to unlatch a door by remote control in order to gain access to a building, as well as providing illumination in the vicinity of the doorway during periods of darkness. A radiant energy receiver, such as a radio frequency receiver, is disposed on the door frame and is electrically coupled with at least one electromechanical door latch also disposed on the frame. A keychain-sized remote control transmitter unit is carried by a person desiring access to the building. When a button on the remote control unit is pressed, the remote control unit transmits a coded signal which is received by the radiant energy receiver.

Abstract: An adjustable shutter assembly having an automated adjustment system including an electronic actuating device, such as an electric actuating motor. The shutter assembly has at least one and typically a plurality of parallel slats rotatably attached at both ends to a frame. The actuating motor is embedded within a self-contained module that can strengthen the shutter frame and be hidden from view. The actuating motor has a spindle that is coaxially connected to one end of an actuator slat selected from among the plurality of parallel slats. The spindle typically includes a tongue that engages a receiving pocket of the actuator slat without additional fastening mechanisms. One or more of the other slats are interconnected with the actuator slat such that rotation of the actuator slat is accompanied by substantially synchronous rotation of the other slats interconnected thereto. Selecting the actuator slat from among the more centrally located slats provides for more reliable and secure closure of all slats.

Abstract: The invention provides a garage door opener alarm for a vehicle that is only triggered when the garage door is open and the vehicle is closer to the garage than a first distance, but further from the garage than a second distance. The invention uses a transmitter system connected to a sensor, where the transmitter system works in conjunction with a first receiver with a first effective range and a second receiver with a second effective range, which senses whether or not the garage door is open. The first receiver and second receiver are mounted in the vehicle. An alarm is sounded only if one receiver receives a signal while the other receiver does not receive a signal.

Abstract: An access control chamber security system with a security chamber having an aluminum frame and an entrance door and an exit door, a metal detector located within the access control chamber to detect a weapon being carried within the chamber, locks on the doors and a control device to prevent the doors from being opened at the same time or prevent the exit door from opening when a weapon is detected, and further including a side frame member with a cutout section having an insulated member placed therein to provide an open electrical loop in the side frame member, the metal detector having a plurality of coils located in a plurality of zones, a three second time delay from when the manually operated exit door is opened to when the lock on the exit door is re-activated, ballistic fiberglass disposed within a hollow section of the aluminum frame members, floor contact pads with nitrogen disposed within the pads surrounding the metal plates formed therein, a floor contact pad having a plurality of induction coils

Abstract: In many storms, high-wind velocity can cause severe damage to building structures by virtue of differential pressures caused by high-wind velocity winds traversing the structure, creating differential inside-outside pressures. Extremely low pressure on the downwind side of the structure causing higher internal pressures inside the structure to lift the roof or burst out windows and the like on the downwind side of the structure. The destructive effects of high-velocity winds on building structures are avoided by providing the building with controlled openings on the various surfaces of the building. Air pressure sensing devices sense pressure differentials caused by high-velocity winds on the upwind and downwind sides of the building and controlling the pressure control opening such that the high-pressure surface opening is closed and the low-pressure surface control opening is opened.

Abstract: An explosion protection apparatus for installation in potentially explosive industrial installations for the purpose of automatically preventing a pressure wave and/or flame breaking through from a potentially explosive installation part to adjacent installation parts, has a sensor for explosion identification, which can be arranged in the potentially explosive installation part or can be connected to it. The sensor is electrically connected to an initiation device (1) which, in its basic state, holds a closing device (3) in its open position via an interlocking device (2) and with the aid of an active magnetic field of an electromagnet (5), and can be operated by sensor signals. The closing device (3) is prestressed such that, after operation of the initiation device (1), it is moved to its closed position. It can be arranged between the installation parts to be protected and the potentially explosive installation part.

Abstract: A carbon monoxide sensing system is provided including a garage having an automatic door adapted to open only upon the receipt of an activation signal. Further provided is a carbon monoxide sensor positioned within the garage and connected to the automatic door for transmitting the activation signal upon the detection of an amount of carbon monoxide which exceeds a predetermined amount. A light beam detector is adapted to generate the activation signal only upon the detection of vehicle within the garage. Also included is a control mechanism connected between the carbon monoxide sensor, light detection and the door opener for allowing the transmission of the activation signal to the door opener only upon the receipt of the activation signal from the light beam detector.

Abstract: A trash enclosure includes a bay with a moveable lid and a sensor attached to the inner periphery of the bay. The moveable lid attaches to the enclosure and moves between an open position and a closed position to cover the bay. Upon detection of an object within the bay, the sensor causes the lid to open. Accordingly, the inner periphery shields the sensor to inhibit detection of objects beyond the inner periphery.

Abstract: A method for selective alteration and control of door movement modes utilizing an apparatus that is primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation. Operation of the apparatus is controlled by programming of a related controller including non-volatile memory.

Abstract: An AWNING WINDOW is provided including a window sill and a window having a sash. Also provided is a window control assembly including a dowel situated within a recess formed in the window sill. The dowel has at least one generally L-shaped arm having a first portion coupled to the dowel. A large gear is concentrically coupled at a central extent of the dowel. A motor is coupled to the top face of the window sill with a small gear coupled to a rotor thereof for engaging the large gear thereby rotating the dowel upon the receipt of power. At least one sleeve is coupled along the one of the side borders of the sash of the window. At least one slider slidably is situated within the sleeve and pivotally coupled with an end of a second portion of the at least one L-shaped arm. By this structure, the window is raised upon the receipt of voltage of a first polarity and lowered upon the receipt of voltage of a second polarity.

Abstract: A vehicle sliding door opening/closing control device comprises a control unit for outputting a standby signal and shifting into a standby mode when for a predetermined time there has been no user-operation input for causing a vehicle sliding door driven by a motor to be open/close-driven and shifting into an operating mode and performing control of the motor when there has been a user-operation input and a switch unit for shorting power input terminals of the motor on the basis of the standby signal. When there has been no user-operation input for causing the sliding door to be open/close-driven for a predetermined time, by shifting into a standby mode the power consumption of the control unit can be kept small and as a result it is possible to suppress the battery power consumption of the control unit. Also, in the standby mode, by shorting the power input terminals of the motor it is possible to keep the motor in a locked state and thereby apply braking to the sliding door.

Abstract: An entrance device for placement in a facade of a building includes at least two revolving doors. Each of the revolving doors has an input section and an output section. A sliding door provides closure of the input and output sections of the two revolving doors. The sliding door is disposed between the two revolving doors.

Abstract: A ventilating window for ventilating the interior of a building or a structure such as a vehicle in a natural and gentle manner. A ventilating window for the exhaust of air is provided with a mechanism for automatically opening a window casement when the atmospheric pressure inside the window is higher than the outside atmospheric pressure, thereby dispensing with forced exhaust using a fan or the like. A ventilating window for the supply of air is provided with a mechanism for automatically closing a window casement when the atmospheric pressure outside the window is higher than the inside atmospheric pressure, thereby preventing a strong wind from blowing into the interior. A ventilating window for both exhaust and supply of air is provided with both such opening mechanism and closing mechanism.