A opening and closing apparatus of a load port module includes: a load port assembly including a mount on which a front opening unified pod (FOUP) is disposed, and a support that is arranged in a vertical direction with respect to the mount, and has an opening formed laterally with respect to the FOUP; a door assembly configured to selectively open and close the opening; and an opening and closing operator configured to open and close the door assembly on the load port assembly, wherein the opening and closing operator is configured to open the door assembly by tilting the door assembly at a set angle, and then linearly moving the door assembly.

The disclosure relates to a guide device for a sliding screen system. The guide device includes a housing, a height adjustment element arranged to be set in different positions in a height direction, and a manually operable pivot connected to the housing for pivoting around a pivot axis and connected to the height adjust-ment element for moving the height adjustment element when pivoted. The housing includes a first toothed structure extending in a circular path around the pivot axis. The manually operable pivot includes a second toothed structure extending in a circular path around the pivot axis. The first toothed structure and the second toothed structure engage each other. The housing includes at least one finger that is radially flexible relative the pivot axis and that includes a section of the first toothed structure.

A mechanism for a covering such as an encasement window or door or awning is provided. The mechanism includes an arm, on which a slot is configured. The slot includes a straight section and an angled section. The arm also includes a hole that is offset from the centerline of the straight section and disposed between the angled section and an end of the arm. A pin shaft is disposed in the hole and held in place by a cover member and a movable member, enabling the arm to rotate about the pin shaft. A rivet pin is disposed in the slot and fixedly connected to a fixed member. When the movable member moves, the arm moves such that the hung sash is unlocked from the fixed frame of the covering, and the angled section engages the rivet pin, causing the arm to rotate to open the covering.