A slide-and-swing wing system includes at least one rail profile. At least two wings, each displaceably mounted in the at least one rail profile via two support elements The at least one rail profile has a lateral outlet opening for unlatching a support element of a wing. One wing functions as a door leaf which, with all other wings in the latched state, is pivotable into the remaining opening. A closure mechanism makes it possible to prevent the door leaf from being opened and includes a drive, and also an operating part, via which the drive can be actuated. The door leaf is displaceable, via the drive, in the rail profile in the direction of the adjacent wing to such an extent that no support element of the door leaf is aligned with the outlet opening, thereby preventing a support element from coming out through the lateral outlet opening.

A roof support system includes a support member configured to be mounted between a roof panel and a frame of an enclosure. The support member is movable to an extended position that supports the roof panel in an open position. A cam lock mechanism is operatively connected to the support member for releasably locking the support member in the extended position. In the extended position, a pin of the support member is received within a slot of the cam lock mechanism such that engagement of the pin with a closed end of the slot prevents the support member from moving from the extended position toward a retracted position. The cam lock mechanism includes a cam configured to rotate to a locking position that at least partially blocks an open end of the slot such that the pin of the support member is prevented from backing out of the slot.

A roof support system includes a support member configured to be mounted between a roof panel and a frame of an enclosure. The support member is movable to an extended position that supports the roof panel in an open position. A cam lock mechanism is operatively connected to the support member for releasably locking the support member in the extended position. In the extended position, a pin of the support member is received within a slot of the cam lock mechanism such that engagement of the pin with a closed end of the slot prevents the support member from moving from the extended position toward a retracted position. The cam lock mechanism includes a cam configured to rotate to a locking position that at least partially blocks an open end of the slot such that the pin of the support member is prevented from backing out of the slot.

A fenestration assembly includes an operator assembly having an escutcheon configured for coupling with the fenestration assembly. A handle linkage is coupled with the escutcheon and rotatable relative to the escutcheon. The handle linkage includes a handle arm rotatably coupled with the escutcheon and a handle knob rotatably coupled with the handle arm. An articulating joint is between the handle arm and the handle knob. The handle linkage is movable between stowed and operational configurations. In the stowed configuration the handle linkage is seated along the escutcheon, and the handle arm and the handle knob are aligned. In the operational configuration the handle linkage is unseated from the escutcheon, the handle knob and the handle arm are misaligned with the handle knob at an operating angle relative to the handle arm, and the handle linkage is configured to open and close a fenestration panel.

A fenestration assembly includes an operator assembly having an escutcheon configured for coupling with the fenestration assembly. A handle linkage is coupled with the escutcheon and rotatable relative to the escutcheon. The handle linkage includes a handle arm rotatably coupled with the escutcheon and a handle knob rotatably coupled with the handle arm. An articulating joint is between the handle arm and the handle knob. The handle linkage is movable between stowed and operational configurations. In the stowed configuration the handle linkage is seated along the escutcheon, and the handle arm and the handle knob are aligned. In the operational configuration the handle linkage is unseated from the escutcheon, the handle knob and the handle arm are misaligned with the handle knob at an operating angle relative to the handle arm, and the handle linkage is configured to open and close a fenestration panel.

A gatebox system for delivering fire retardant fluid from a firefighting aircraft. A first and second gate opening are formed through a lower portion of a gatebox. The gates are hingedly connected along edges of the openings. One or two drive shafts in the gatebox are rotatable in gates-closing and gates-opening directions. Crank arms are fixed to the drive shafts and coupled to the gates by connecting links, which define an over-center geometry while the gates are at a closed position, such that weight of the fluid on the first gate induces torque on the drive shaft in the gates-closing direction. Rotation of the drive shafts in the gates-opening direction enables control of the fluid flow from the hopper according to an angular position of the drive shaft.

A gatebox system for delivering fire retardant fluid from a firefighting aircraft. A first and second gate opening are formed through a lower portion of a gatebox. The gates are hingedly connected along edges of the openings. One or two drive shafts in the gatebox are rotatable in gates-closing and gates-opening directions. Crank arms are fixed to the drive shafts and coupled to the gates by connecting links, which define an over-center geometry while the gates are at a closed position, such that weight of the fluid on the first gate induces torque on the drive shaft in the gates-closing direction. Rotation of the drive shafts in the gates-opening direction enables control of the fluid flow from the hopper according to an angular position of the drive shaft.

A lockable sliding door is described. A ratcheted track allows the movable panel of the door to be selectively locked in both closed and vented positions. A lever is positioned along a midpoint of the movable panel to allow for the easy engagement of the locking mechanism. Further, the locking mechanism is carried on the movable panel. The technology is configured to allow the sliding door to be locked in various configurations, with the door partially opened, completely open, or completely closed. The technology may also be utilized on windows or any other architectural features with a slide-to-open and close design.

A fenestration assembly includes an operator assembly having an escutcheon configured for coupling with the fenestration assembly. A handle linkage is coupled with the escutcheon and rotatable relative to the escutcheon. The handle linkage includes a handle arm rotatably coupled with the escutcheon and a handle knob rotatably coupled with the handle arm. An articulating joint is between the handle arm and the handle knob. The handle linkage is movable between stowed and operational configurations. In the stowed configuration the handle linkage is seated along the escutcheon, and the handle arm and the handle knob are aligned. In the operational configuration the handle linkage is unseated from the escutcheon, the handle knob and the handle arm are misaligned with the handle knob at an operating angle relative to the handle arm, and the handle linkage is configured to open and close a fenestration panel.