Described is a louver having a frame that forms an enclosure defining an opening, and a plurality of louver blades disposed within the opening. Each of the plurality of louver blades include a catch member that longitudinally extends between a first blade end and a second blade end of a corresponding louver blade. The louver may also include a rotation assembly configured to rotatably couple with the plurality of louver blades and the frame. The plurality of louver blades may autonomously rotate about rotation members of the rotation assembly based on environmental elements captured in the catch member such that the plurality of louver blades are configured in an open position in response to no water in the catch member and are configured in a closed position in response to an amount of environmental elements in the catch member.

The present invention provides device that replaces the hinge pin in a door hinge to provide a door with automatic closing technology, triggered by the device's detection of an adverse condition in the surrounding environment, such as a fire or gas leak, the device including a lower extension pin that slides into the space conventionally occupied by the hinge pin, first and second arms that apply opposing rotational force to the door and door jam, respectively, when the device is activated, and a condition detection module employing at least one sensor and an activation system to activate the device upon the sensor's detection of an adverse environmental condition to close the door.

Described is a louver having a frame that forms an enclosure defining an opening, and a plurality of louver blades disposed within the opening. Each of the plurality of louver blades include a catch member that longitudinally extends between a first blade end and a second blade end of a corresponding louver blade. The louver may also include a rotation assembly configured to rotatably couple with the plurality of louver blades and the frame. The plurality of louver blades may autonomously rotate about rotation members of the rotation assembly based on environmental elements captured in the catch member such that the plurality of louver blades are configured in an open position in response to no water in the catch member and are configured in a closed position in response to an amount of environmental elements in the catch member.

A retrofit unit is disclosed, adapted to be attached to a door as part of a door closer apparatus, the door closer apparatus being adapted to selectively prevent or facilitate movement of a door relative to its associated door frame, the retrofit unit comprising energy harvesting means adapted to convert energy harvested into electrical energy, the retrofit unit further having a first energy storage means, control means adapted to control the door closer unit, one or more sensors adapted to detect one or more environmental state, and a communication means adapted to transmit and receive information wirelessly to and from a remote base station and adapted to transmit and receive information wirelessly to and from a further retrofit unit. A door-integrated unit is also disclosed, as well as a fire safety system having a plurality of units and one or more base stations.

A vehicle comprising a plurality of walls defining a volume adapted to house passengers and/or merchandise and at least one electric battery pack to supply energy for the operation of the vehicle, said at least one electric battery pack being housed in a respective seat made in at least one of the walls and defining with the latter a housing volume comprising at least one cover configured to assume a first operating position in which the volume communicates with the outside environment and a second operating position in which the volume is isolated from the outside environment; the vehicle comprising security means configured to enable the covers to move from the first operating position to the second operating position when a temperature of the electric battery pack and/or a temperature inside the volume exceed/s a pre-set threshold temperature value.

Described is a louver having a frame that forms an enclosure defining an opening, and a plurality of louver blades disposed within the opening. Each of the plurality of louver blades include a catch member that longitudinally extends between a first blade end and a second blade end of a corresponding louver blade. The louver may also include a rotation assembly configured to rotatably couple with the plurality of louver blades and the frame. The plurality of louver blades may autonomously rotate about rotation members of the rotation assembly based on environmental elements captured in the catch member such that the plurality of louver blades are configured in an open position in response to no water in the catch member and are configured in a closed position in response to an amount of environmental elements in the catch member.

A door closer assembly includes a door closer without a powered drive for closing a door. The door closer includes an energy accumulator, wherein the energy accumulator is chargeable by manually opening the door and wherein the energy accumulator discharges for closing the door. A sensor unit is also included for detecting an angle information with regard to the opening angle of the door.

A drive unit for closing a leaf of a door or a window comprises an energy accumulator for providing a closing force for closing the leaf, a damping device which counteracts the closing force and has an electric motor which can be operated as a generator and can be coupled to an actuating element of the drive unit, and a control device for controlling the electric motor. The control device is designed to determine a nominal path curve which indicates a position of the leaf or a closing speed of the leaf in dependence upon time, and to perform the control of the electric motor in order to damp the closing movement of the leaf on the basis of the established target path curve.

A vehicle comprising a plurality of walls defining a volume adapted to house passengers and/or merchandise and at least one electric battery pack to supply energy for the operation of the vehicle, said at least one electric battery pack being housed in a respective seat made in at least one of the walls and defining with the latter a housing volume comprising at least one cover configured to assume a first operating position in which the volume communicates with the outside environment and a second operating position in which the volume is isolated from the outside environment; the vehicle comprising security means configured to enable the covers to move from the first operating position to the second operating position when a temperature of the electric battery pack and/or a temperature inside the volume exceed/s a pre-set threshold temperature value.

The present invention discloses anon-power driven window capable of adjusting ventilation rate. When the sash is unlocked, due to combined action of the sash's gravitational torque and the expansion of a torsion spring against the sash, the window keeps open. The window is designed having a bigger size in the lower section below the pivot than that in the upper section. Subject to the outdoor wind blowing, the moment by the outdoor wind tends to shut the window. In addition, the upper screen is installed in the outer side of the pane above the pivot, while lower screen is installed to the inner side of the pane below the pivot. Thus the lower sash is exposed into the outdoor air and can be easily blown by the outdoor wind. Consequently, the stronger is the outdoor wind, the smaller is the effective opening of the window for ventilation, and vice versa.