An automatic fire door closing device includes a hydraulic main engine, an arm rod, a rotating shaft, a connecting plate and a clamping device, and further comprises a fire monitoring and response device and a driving device. The driving device includes a linkage rod rotatably connected to the connecting plate, a transmission column rotatably connected to the connecting plate, and a transmission rod fixedly connected to the transmission column, one end of the linkage rod has a hook part for hooking the transmission rod, and the transmission column cooperates with the clamping device, when smoke or open fire is monitored, the hook part of the linkage rod is disengaged from the transmission rod, and the rotation of the transmission column makes the clamping device to release the rotating shaft. The device reduces cost with simple structure, high integration and low installation difficulty.

A safety cabinet includes an enclosure and at least one door to selectively seal the enclosure. The safety cabinet can be used to store, for example, flammable liquids, flammable waste, corrosives, pesticides, or combustible waste. The safety cabinet incorporates a thermally-actuated damper that includes a body, a valve plate, and a pivot assembly. The valve plate is disposed within the passage of the body such that the valve plate is movable between an open position and a closed position. The pivot assembly includes a biasing system adapted to bias the valve plate to the closed position and a fusible link interconnected between the body and the biasing system to constrain the valve plate from moving from the open position to the closed position. The fusible link is configured to melt at a predetermined temperature to thereby allow the biasing system to move the valve plate to the closed position.

A fire damper actuation system in an HVAC system includes a damper system and an actuator system. The damper system includes damper blades rotatable between an open configuration and a closed configuration, a crank arm assembly configured to drive the damper blades, a spring assembly configured to be held in a loaded condition when the damper blades are in the open configuration, a temperature-activated fusible link, and a fusible link arm coupling the temperature-activated fusible link to the crank arm assembly. The actuator system includes a motor and a drive device. The drive device is coupled to the crank arm assembly and the temperature-activated fusible link. Operation of the drive device by the motor between a first end stop location and a second end stop location simultaneously rotates the crank arm assembly and the temperature-activated fusible link to complete a test inspection procedure.

A thermal door release system is provided that includes a plurality of temperature sensors arranged within multiple environments; a controller; and a release apparatus; wherein the controller, using data from the temperature sensors, monitors the temperatures of the individual environments and when a temperature for an environment reaches a set temperature threshold for that environment, causes an action such as the release apparatus to operate a door to a specified position. The set points and actions to be taken can be set per environment by a user, such that different environments will have different set points. In an embodiment, the system can support staged logic such that at various different user-defined set point temperatures for an environment, specified actions can be taken, for example, sending an email to the facilities manager when the temperature is significantly above normal and closing the door when it reaches a higher set point value.

A dog toy container can be used to store dog toys or consumable objects, such as chew toys, ropes, balls, stuffed animals, edible chews, bones, and other similar objects used to entertain or reward or please dogs. The dog toy container having a pedal arrangement and a lid in connection with a motorized movement arrangement, such that when a dog depresses the pedal arrangement with its paw, the dog will activate the motor to lift or lower the lid and thereby permit the dog access to the storage area.

A device for locking a leaf of a door or the like comprising at least one electric motor operated as a generator having a motor shaft which is operatively connected to the leaf via a force transmission unit. The motor terminals of at least one electric motor operated as a generator are connected in this regard to a damping circuit for damping the leaf movements. The motor shaft of at least one electric motor operated as a generator is acted on by a brake unit to lock the leaf.

An integrated system for releasing trapped persons in a vehicle (PARIS) includes a central management unit (CPU) to which sensors (D1, D2, . . . Dn), an input-output socket (S) for connecting a service computer and control switches or buttons, and at least the following are connected at an output of the central management unit: an automatic seatbelt cutting system (SBC), a system for automatically opening door locks and bolts and locking them in the open position (LOB), and a system for automatically swinging doors and locking them in the open position (DOB).

A fire protection securing apparatus for securing a door actuator includes a retaining plate, designed for being secured to an assembly surface, in particular door, frame or wall, wherein, perpendicular to the retaining plate, an assembly axis is defined. The fire protection securing apparatus further includes an assembly plate which is secured to the retaining plate and which is designed for receiving the door actuator, and at least one closed reaction chamber arranged between the retaining plate and the assembly plate. The apparatus also includes a drive element of thermally intumescent material which is arranged in the reaction chamber and which is designed to push the assembly plate away from the retaining plate upon thermal activation.

A self-closing residential fire hinge apparatus for closing a door during a fire includes a door hinge with a spring-actuated release mechanism. The spring-actuated release mechanism includes a spring that is pre-tensioned in an open position and a coating covering the spring. The coating is a solid material that retains the spring in the open position. The coating has a melting point less than a melting point of the spring. For example, the coating may be formed of bismuth. When the coating is heated and becomes malleable, the spring is released to a closed position. When the coating is solid and not malleable, the door hinge allows regular opening and closing of the door. The apparatus may also include a spring assembly cap, improving the aesthetics of the assembly. The spring assembly cap may be composed of copper, improving conduction of the ambient heat to melt the coating even faster.

An egress entrance system (1) comprising a swing door member (10) having a door leaf (12), an initiate device (13) for initiating a panic opening, and an automatic door operator (30) is provided. The automatic door operator (30) has a motor (34) capable of causing movement of the door member (10), a controller (31) for controlling operation of the motor (34), and the automatic door operator (30) being operable in a testing mode (60) and an operational mode, wherein the controller (31) is configured, in the testing mode (60), to automatically determine at least one test parameter; and causing an action in response to the determined test parameter.