A panel system for closing and opening a merchandise space of a refrigerated cabinet includes multiple movable panels. Each panel is movable between an open position and a closed position. Two of the panel are connected to form a pair of panels. A return mechanism is arranged above the pair of panels and a pulling mechanism is guided over the deflection mechanism and connects the two panels in the pair. Each panel of the pair is disposed with respect to the deflection mechanism so that a movement of one panel in a first movement direction effectuates a movement of the second panel in a second movement direction. A refrigerated cabinet includes such a panel system.

An electric lock includes a housing, a clutch mechanism and a manual control member. The housing is formed with a driving structure having a first inclined surface, a second inclined surface and a bottom surface. The clutch mechanism includes a driving member having a pushing structure, an elastic member arranged on the driving member for abutting against the driving structure, a rotating member having a pushed structure, and a motor for driving the driving member to rotate. The manual control member is connected to the rotating member. When the motor drives the driving member to rotate relative to the driving structure, the elastic member abuts against the first or second inclined surface to push the driving member to move toward the rotating member, so as to allow the pushing structure to abut against the pushed structure, in order to further drive the rotating member to rotate the manual control member.

A screw-driven control system includes a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism includes a screw rod and a motor driven nut assembly having a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod.

An electric lock includes a housing, a clutch mechanism and a manual control member. The housing is formed with a driving structure having a first inclined surface, a second inclined surface and a bottom surface. The clutch mechanism includes a driving member having a pushing structure, an elastic member arranged on the driving member for abutting against the driving structure, a rotating member having a pushed structure, and a motor for driving the driving member to rotate. The manual control member is connected to the rotating member. When the motor drives the driving member to rotate relative to the driving structure, the elastic member abuts against the first or second inclined surface to push the driving member to move toward the rotating member, so as to allow the pushing structure to abut against the pushed structure, in order to further drive the rotating member to rotate the manual control member.

A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.

A foot operable door opener operates, without using one's hands, and without an electrical assist. The entrance cycle is initiated by stepping on a pedal. This force drives the pedal a ¼ turn, engaging a soft wheel to open the door. The pedal is hard linked to a crank arm which goes into a unidirectional crank shaft hub to turn the wheel. The downward pressure from the pedal pivots a ratcheted hinge connected to a bracketed spring-loaded wheel assembly to keep constant pressure to the ground. A gear box or multiple pumps of the pedal turns the wheel two or more 360 degrees rotations, opening the door to allow the entrant to pass until the foot pedal is disengaged. This action releases the ratcheting hinge mechanism, allowing the spring assisted wheel assemble to rotate to its original up position, releasing the wheel from the ground, allowing the door to close.

The method of door control without, hand contact, wherein, when the door leaf is in its stationary closed position, all the energy necessary for automatic opening and subsequent closing the door leaf, initiated by an actuating force, preferably realized by means of a foot lever, is accumulated in an opening and closing mechanism during the actuating action of the controlling mechanism. During the automatic opening, the only acting force is the tension of the opening member, and during the subsequent automatic closing, the only acting force is the tension of the closing member. By means of the bimodal opening and closing mechanism, the tensions of these two members act separately, not against each other.

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. A drive shaft in the gatebox is rotatable in gates-closing and gates-opening directions. Crank arms are fixed to the drive shaft 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 shaft in the gates-opening direction enables control of the fluid flow from the hopper according to an angular position of the drive shaft.

A closure member (e.g., door) stop includes a base having a top portion opposite a bottom portion, the bottom portion being configured for affixing to an installation point associated with the closure member, a flexure extending away from the top portion, a cushion comprising an angled face and an impact face, the impact face being configured to interface with the closure member during closing of the closure member, and the angled face being configured to interface with the closure member during opening of the closure member. The flexure provides an operable, bendable connection between the cushion and the base. Also, a lever is operably connected to the cushion and the flexure and configured to move the cushion away from a swing path of the closure member. The cushion extends into a swing path of the closure member when the closure member stop is at rest in the installed position.

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.