A hatch arrangement with at least one slidable hatch for closing an opening in a floor of a wind turbine including a first guiding device fixedly mountable to the floor and a second guiding device pivotably mountable to the floor, a first coupling means to guide the slidable hatch along a first guidance path in the first guiding device and a second coupling means to couple the slidable hatch at least pivotably to the second guiding device, wherein the slidable hatch is coupled to the first guiding device at a first position and to the second guiding device at a second position, wherein a movement of the slidable hatch from a closed position along the first guidance path results in a pivoting movement of the second guiding device and in a movement of the slidable hatch to an open position and vice versa is provided.

A hatch arrangement with at least one slidable hatch for closing an opening in a floor of a wind turbine including a first guiding device fixedly mountable to the floor and a second guiding device pivotably mountable to the floor, a first coupling means to guide the slidable hatch along a first guidance path in the first guiding device and a second coupling means to couple the slidable hatch at least pivotably to the second guiding device, wherein the slidable hatch is coupled to the first guiding device at a first position and to the second guiding device at a second position, wherein a movement of the slidable hatch from a closed position along the first guidance path results in a pivoting movement of the second guiding device and in a movement of the slidable hatch to an open position and vice versa is provided.

The present application discloses a climate chamber comprising at least one housing comprising a door, with an interior volume which is closable with the at least one door, wherein the at least one door comprises an inner wall and an outer wall, wherein the inner wall is formed of a unitary and bendable base body which comprises a polygonal wall section enclosed by side regions, wherein from each of the side regions projects a tongue with its free end, wherein the tongue in a first edge is canted from the wall section into a first section to form a tray and wherein the free end of the tongue is canted back by a second edge into a second section in order to form a sealing seat into which a sealing can be set.

The present application discloses a climate chamber comprising at least one housing comprising a door, with an interior volume which is closable with the at least one door, wherein the at least one door comprises an inner wall and an outer wall, wherein the inner wall is formed of a unitary and bendable base body which comprises a polygonal wall section enclosed by side regions, wherein from each of the side regions projects a tongue with its free end, wherein the tongue in a first edge is canted from the wall section into a first section to form a tray and wherein the free end of the tongue is canted back by a second edge into a second section in order to form a sealing seat into which a sealing can be set.

A selective access device for a picking/depositing station in warehouse defines an access area engaged by a first cover that is defined by a pair of movable plane surfaces parallel or coplanar to one another; these plane surfaces are slidable along a first rectilinear axis under the action of a movement system so as to open/close a first opening; in the access area, there is provided a second cover above the first cover, to define a second opening aligned with the first opening; the second cover consists of a plurality of doors, each rotating about a relative rotation axis in respect to the first cover; the doors are arranged side-by-side along a second rectilinear axis, orthogonal to the first axis and are closed by respective locks, while the rotation axes are parallel to this second axis.

A method is provided for reducing dynamic forces on doors and windows and barriers and their supports. At least one impact receiver 10 is provided to receive the dynamic forces from its source. At least one impact reducer 20 is provided to transfer the dynamic forces from the impact receiver 10 to the supports while undergoing elastic deformation. Elastic deformation of the impact reducer 20 elongates the duration of the dynamic force, and reduces the dynamic forces on the doors and windows and barriers and their supports.

A method of installing a combination door unit into a threshold of a house, comprising placing a combination door unit within a threshold opening of a house surrounded by a plurality of house frame studs. The combination door unit comprises a door frame, a threshold door hingedly coupled to the door frame, and a secondary door. The secondary door is hingedly coupled to a mounting frame and the mounting frame, the door frame, and the plurality of house frame studs are aligned when the combination door unit is placed within the threshold opening. The method of installing the combination door unit may also comprise the steps of leveling the combination door unit, removing the secondary door from the combination door unit, driving a plurality of fasteners through the mounting frame, through the door frame, and into the house frame studs, and replacing the secondary door on the combination door unit.

A hybrid drive-thru door system that includes a door panel assembly movable between a plurality of operating modes. The door panel assembly includes a sliding door panel operable for movement between a closed position to at least partially cover a doorway opening and an opened position to at least partially expose the doorway opening. The sliding door panel has an upper sliding door panel member releasably attached to a lower sliding door panel member. The upper sliding door panel member is independently movable relative to the lower sliding door panel member in a window operating mode of the door panel assembly.

A hybrid drive-thru door system that includes a door panel assembly movable between a plurality of operating modes. The door panel assembly includes a sliding door panel operable for movement between a closed position to at least partially cover a doorway opening and an opened position to at least partially expose the doorway opening. The sliding door panel has an upper sliding door panel member releasably attached to a lower sliding door panel member. The upper sliding door panel member is independently movable relative to the lower sliding door panel member in a window operating mode of the door panel assembly.

A high security two-way virtual cross-barrier observation and communication device has a mounting frame with a hardened core, a pair of digital displays, and a pair of cameras. The mounting frame may correspond to a typical interior door of a building or a relevant component of a vehicle, aircraft, or other relevant application. The hardened core is bullet-resistant and fire-resistant to protect occupants of a protected space from harm. The digital displays and cameras are positioned on opposing sides of the mounting frame, each camera transmitting a live video feed to the opposing display, creating the appearance of a window while protecting occupants. The digital displays may be used to display any desired information. An emergency protocol may be activated to communicate with emergency services. A plurality of laminate layers bond and encapsulate the displays and cameras to the hardened core, forming a rugged, self-contained unit with no moving parts.