Abstract: Provided is a joint device which can be connected by quick and simple operation while being subjected to high-pressure high-flow-rate pressurized operating oil. The present invention comprises: a closed chamber 27 provided in a hydraulic circuit on which pressurized fluid acts, the pressurized fluid circuit having an upstream side and a downstream side, which are closed by an upstream-side stop valve 211 and a downstream-side stop valve 212; a male joint 30 provided at a position in communication with the closed chamber 27; and a female joint 40 connectable to the male joint 30 and provided in an emergency hydraulic circuit connected to the hydraulic circuit. The present invention is configured so that the female joint 40 is connected to the male joint 30 while the closed chamber 27 is closed by the upstream-side stop valve 211 and the downstream-side stop valve 212.

Abstract: The invention relates generally to the field of hand sanitation, and particularly to a systems that encourage or compel the use of a hand sanitizer in order to open or unlock a door, unlock an access panel or drawer, or use a shared electronic device.

Abstract: A door assembly includes a first door skin and a second door skin spaced apart from the first door skin. The assembly also includes an energy sensor generating an energy signature signal and a memory storing a door component operating signature. A controller is coupled to the accelerometer and forms a comparison of the energy signature signal to the door component operating signature and generates a door component operation status signal in response to the comparison.

Abstract: Doors such as garage doors can be automated by pushing commands to a removable device attached to the garage door. The state of the door (e.g. whether the door is open or closed) may be obtained from a position sensor located within a removable device. An implementation may indicate, over a wireless network, the state of the door to a user. The user may send a command to a wireless transmitter located within the device to change the state of the door. An implementation may also send a signal to the door to change the state of the door.

Abstract: A system and method for controlling an operation of a power door of a vehicle are presented. An activation of a user interface device associated with the power door is detected. A cue is provided using a notification device after detecting the activation of the user interface device. In one implementation, the notification device includes an audible alarm. When the user interface device is activated for greater than a predetermined time period, the power door is caused to be in a power mode of operation, and the notification device is used to indicate a current operational mode of the power door. In one implementation, when the user interface device is deactivated within the predetermined time period, the power door is caused to be in a manual mode of operation.

Abstract: A door position detecting apparatus comprises a switch including a body having two electrical contacts and a through-channel. The through-channel of the switch receives a hinge pin inserted therethrough and further inserted into a door hinge. Two lever arms extend from the body. Each of the arms is attached to a respective one of the electrical contacts. The arms have a first position relative to each other wherein the contacts are electrically connected to each other, and a second position relative to each other wherein the contacts are electrically disconnected from each other. Biasing means biases the arms against a fixed door jamb and a rotatable door, respectively, such that one of the arms follows movement of the rotatable door from an open position of the door to a closed position of the door. Monitoring means monitors whether the contacts are electrically connected to each other.

Abstract: A lock mechanism for locking a door or the like with a Sabbath control unit comprises a Sabbath control unit comprising an optical device including a light beam emitter and detector spaced apart with a line of sight path between them, the optical device operative to provide output indicating if a light beam emitted by the emitter is received by the detector, and a locking mechanism comprising a moving member operative to be displaced between a locked state position wherein the door is locked and an unlocked state position wherein the door is unlocked, wherein the moving member is operative to block the line of sight path while in the locked state position and to clear the line of site path while in the unlocked state position, and wherein the Sabbath control unit is operative to activate an electronic device in response to output indicating that the light beam emitted by the emitter has not been received by the detector.

Abstract: A security system including an RFID subsystem for detecting entry of an RFID tag within a monitored area; an RFID token associated with a person accessing the monitored area; and an indicator system for providing an indication when the person enters into the monitored area.

Abstract: A method for detecting a position of a door includes providing a switch having a body with two electrical contacts and a through-channel. Two lever arms extend from the body. Each of the arms is attached to a respective one of the electrical contacts. The arms have a first position relative to each other wherein the contacts are electrically connected to each other, and a second position relative to each other wherein the contacts are electrically disconnected from each other. A hinge pin is inserted through the through-channel of the switch and is also inserted into a door hinge. The arms are biased against a doorjamb and the door, respectively. It is monitored whether the contacts are electrically connected to each other.

Abstract: A container seal device is provided that comprises a seal device for a shipping container, comprising a first unit that is affixed to a shipping container. A control system is contained in the first unit containing a control system. A second unit is provided that is configured to engage with an element of a door of a shipping container to which the first unit is affixed and to electrically connect with the control system in the first unit. The control system in the first unit is configured to detect a breach of the second unit indicative of access being made to the shipping container.

Abstract: A safety door, door lock and door lock release mechanism for preventing a child from opening a door while permitting an adult to do so includes a weight sensor and a height sensor for unlocking a locked door. An alarm is used to indicate a child's attempt to open the door and a sensor for sensing a dangerous condition such as smoke or carbon monoxide is also provided for unlocking the door in the event of a dangerous condition and activating a more discernable alarm at that time.

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 motor assembly for driving a foldable screen includes an inner tube, a motor device mounted in the inner tube and including a DC motor, an outer tube mounted around the inner tube, a control device, and a connecting device mounted to an end of the inner tube. A screen is mounted to the outer tube. The control device includes a power circuit connected to an external AC power source via a plug. The control device reduces a voltage from the external AC power source and rectifies current from the external AC power source. The control device generates a first DC power source for a circuit system and a second DC power source for driving the motor.

Abstract: An apparatus comprising a movable barrier operator for controlling the movable barrier; and a network interface electronically connected to the movable barrier operator for connecting the movable barrier to a network; wherein the network board sends a status of the movable barrier over the network to a requesting device.

Abstract: A fume hood control apparatus for controlling the flow of air through the fume hood in a manner whereby the effective size of the total opening to the fume hood, including the portion of the opening that is not covered by one or more sash doors will have a relatively constant average face velocity of air moving into the fume hood. The apparatus includes a simple and reliable sash door sensing means for sensing the position of the moveable sash door by using a rotary position sensor with a lever arm mechanism which translates horizontal or vertical movement to rotary movement for determining the position of the sash door. The apparatus compensates for nonlinearity that result from the translation.

Abstract: A system and device for insuring the integrity of an automatic garage door has a sensor to determine the status of the door with respect to a predetermined position and a programable actuator which provides a positive signal for automatically activating a warning or alert system when the door is in predetermined position when the programmable actuator is activated and the sensor indicates that the door is at other than the predetermined position. Preferably the programmable actuator is a timer and the predetermined position is closed. The timer can be remotely programmable. The actuator can also be triggered by a sensor of an event such as darkness. Remote means are provided for manually activating the door to return to the desired position by an RF frequency transmitter.

Abstract: A garage door operating system which includes a garage door, framing along which the garage door is positioned and travels between non-closed and closed positions, a signal generator which transmits a closed and or non-closed signal depending upon the position of the garage door, and finally includes an indicator which provides a suitable indicator signal upon receiving the signal.

Abstract: The invention relates to a device for checking the closed state of a door mounted on an object (1), especially on a motor vehicle, by using an electronic key (2). The electronic key (2) and the object (1) are each fitted with intercommunicating transmitter/receiver units (3, 4 or 13, 14). The closed state of the door (1) is determined via a closure detecting sensor (8) on the door (7) and indicated via optical displays (10 or 16) on the outside of the object (1) and/or on the electronic key (2).

Abstract: An apparatus for television conference is disclosed which includes a material picturing device and has a minimized overall size. A main camera device taking a picture of a conference, a main monitoring device outputting a picture and voice sound, a voice inputting device, a system controller and a keyboard device for inputting instructions are accommodated inside one cabinet. A manuscript table, for placing an object whose picture is to be sent to other terminals, is provided to the cabinet. A video camera device, which takes a picture of the object, is provided to the cabinet. A lighting device, which lights up the object on the manuscript table is also provided to the cabinet. The manuscript table, video camera device and lighting device are accommodated inside the cabinet when not in use.

Abstract: An integrated alarm and access control system includes an access control package, an intrusion detection package and an interface unit. A position sensor determines if a door is open or closed and an electrically activated locking device locks the door in its closed position. A supervisory circuit provides line security. A door position relay and a first timer prevent an alarm signal from the supervisory circuit if the door is open and the egress device is actuated for a time period. A door control relay activates locking devices and a second timer responds to the door control relay, the egress device and the door position relay to give a prealarm signal. Fail-safe and fail-secure circuits are included.

Abstract: A window security system including a door disposed over a window and moveable between a closed position and an open position. The door may be selectively locked in the closed position by an electrically actuated lock. The system further includes a smoke detector and an actuator for automatically unlocking the door when the smoke detector detects smoke. The system also includes manual override features for unlocking the door even when the smoke detector detects smoke and also for preventing the door from unlocking when the smoke detector detects smoke. The system may also include audible or visual signals for indicating whether the door is in the open position.

Abstract: A door closer mechanism that controls the opening and closing swing of a door, in conjunction with an integral switch that electrically signals when the security of the closed door has been violated by partially opening the door. The device is especially important and useful in high security installations including detention facilities and features a secure field adjustment feature to accommodate door positioning and rattle.

Abstract: Presented is a radio controlled safety stop system for forklift trucks including a transmitter mounted above a doorway in a warehouse or other building in such a way that a radio signal is continuously transmitted by the transmitter when the door is closed in a pattern such that the signal strength of the radio signal at a predetermined far distance from the door is detectably weaker than the radio signal that is detectable at a predetermined near distance from the door. Mounted on the forklift truck and provided with an appropriate antenna to detect the signals being transmitted, is a radio receiver which detects the radio signal when the forklift truck moves into the far distance zone included by the relatively weak radio signal, and which then functions to activate an alarm to warn the driver that he is approaching a danger zone.

Abstract: A door position indicator for a door closer which senses the position of a door closer piston as a means of sensing door position. The door closer and hence the door position indicator may be recessed in the door jamb over the top edge of the door thereby providing additional security to the door position sensing device.

Abstract: An agricultural wagon protective cover as set forth formed of relatively rigid material such as reinforced fiber glass. The invention maintains its geometric integrity throughout its working environment. Formed with a single open hatch or alternatively of plural hatches, my cover enables filling of a single or compartmentalized agricultural wagon. A catwalk is provided for accessibility to the covers and access to the interior of said wagon. Optional limit switches are provided to enable indication of complete closure of the pivoting individual or several hatches.

Abstract: A safety mechanism for a power operated door activates limit switches for stopping an electric motor or reverses it's polarity. The safety mechanism is more compact than existing types of mechanisms and is suitable for friction drive roller garage door openers. Furthermore, indicator lights are provided that indicates exactly when a limit switch is tripped enabling field adjustment of the safety mechanism to suit specific pressures to either stop or reverse the door. The mechanism includes a worm slidably mounted on a motor drive shaft, with a cage structure around the worm to slide with the worm, two compression springs supporting the cage structure in a neutral position, an actuator member on the cage structure to activate limit switches when the cage structure slides in either direction, and adjustment screws to vary the position of the limit switches, each limit switch having an indicator light indicating when the switch is activated.

Abstract: There is provided a new and useful airtight door assembly comprising a door; an inflatable seal disposed around the perimeter of the door and including means for connecting the seal to a compressed fluid supply; a pneumatic door locking device including means for connecting the device to a compressed fluid supply; and means for simultaneously charging the compressed fluid to the seal and the locking device through the means for connecting.

Abstract: A building has at least one security guard post to control the secured building exits, each of which has an unlocking instrumentality, without forbidding their emergency use. When activating the unlocking instrument to open a secured exit, there is a transmission of information to the security guard post and an initiation of a delay during which the security guard can forbid the opening of the exit. The unlocking instrument can also visually indicate events at the exit. The apparatus has an electro-mechanical lock, a sensor which is sensitive to motion of the unlocking instrument, a control line linking each door to be controlled to the security guard post, and a central electronic processing unit. A surveillance circuit responds to the sensor. A security circuit frees the unlocking instrument when a fault is detected.

Abstract: A door operator system includes up and down limit switches actuated to the closed position when the door reaches the up and down travel limits. A processor circuit within the operator is connected to the limit switches for ascertaining the position of the door. Bias circuits apply a bias to the processor when the limit switches are open. An indicator system comprising a pair of light emitting diodes connected across respective limit switches indicates the door position. A series impedance element common to both LED circuits prevents actuation of the control circuit by the light emitting devices.

Abstract: There is disclosed a door position monitoring assembly for a security door installation wherein the assembly can be adjusted and preset from the exterior of the assembly. In this regard, the monitoring assembly includes a base member with switching means carried by the base member and capable of being operated to attain a first condition and a second condition, each of which conditions can be detected by suitable circuit means. A control arm produces operation of the switching means and has one end thereof coupled for movement with said door and the other end piotally mounted to the base member.

Abstract: Door operator device comprising an indicator that the door is in either fully opened or fully closed condition, including a drive for moving the door to these positions in response to operation of an initiator connected therewith. The device includes a switch circuit to switch off the drive when the door has reached either of the positions, and the indicator is operatively interconnectable with the door operator device to provide the information that the door is in its fully opened or closed condition.

Abstract: A conventional roto-gear window operator for a casement or awning window, or the like, is provided with an alarm switch. The alarm switch consists of a conductive wire which is connected to a remote alarm package and is insulated from the base of the operator. One end of the wire is fixedly held adjacent to the helix of the operator worm gear so as to provide intermittent wiping contact when the worm gear is rotated. The worm gear is electrically conductive and, through the operator base, is connected to a lead wire which also extends to the alarm package. Accordingly, rotation of the worm gear (to actuate the operator) opens and closes the switch by engagement and disengagement of the wire with the worm gear helix, generating a sequence of pulses which triggers the alarm package.

Abstract: There is disclosed an improved door position monitoring unit for use in a security door installation. The unit includes track means for mounting with respect to a horizontal edge of a door and movable therewith, a circuit component such as a switch mounted with respect to a stationary surface of the door installation, such as the door frame or the threshold. The circuit component is capable of being operated to attain a first condition, and a second condition which conditions can be detected by suitable circuit means. A control arm is provided to mechanically link the door to the switches, said control arm having one end thereof slidably connected to said track means, and being pivotally mounted proximate the other end thereof to the door frame, such that movement of said door will produce pivotal movement of said control arm.

Abstract: A loading dock assembly adapted to be included in a building comprising an automatic control means for opening and closing the loading dock door, automatically raising and lowering the dock ramp to a proper position, as well as automatically turning on and off the dock light.