A lock assembly is provided for a window having a first sash and a second sash. The lock assembly comprises an elongate strip configured to be coupled to the first sash. The elongate strip has a plurality of recesses defined along a length of the elongate strip. The lock assembly also includes a lock member configured to be coupled to the second sash and operable to move along the length of the elongate strip. The lock member includes a biasing member and a coupler biased in a direction of the elongate strip by the biasing member. The coupler is configured to enter each of the plurality of recesses to selectively lock the lock member to the elongate strip.

The invention relates to a vertical sliding element including an element frame and a sash which can be moved in the vertical direction relative to the element frame. In the closed position of the sash, one fitting chamber each is formed in the intermediate spaces which are laterally limited by mutually facing side faces of the sash and the element frame. Each fitting chamber is provided with a guide rail and guide elements guided in the guide rail. The sash is connected to the guide elements via a scissors' arrangement having a plurality of parking scissors. The scissors arrangement is designed for parallel parking of the sash in a partially open position, in which the sash is positioned in front of an opening in the element frame, seen in the horizontal direction, and wherein the guide elements are designed to move the sash parked in parallel in the vertical direction by moving the guide elements in the guide rails.

The invention relates to a vertical sliding element including an element frame and a sash which can be moved in the vertical direction relative to the element frame. In the closed position of the sash, one fitting chamber each is formed in the intermediate spaces which are laterally limited by mutually facing side faces of the sash and the element frame. Each fitting chamber is provided with a guide rail and guide elements guided in the guide rail. The sash is connected to the guide elements via a scissors' arrangement having a plurality of parking scissors. The scissors arrangement is designed for parallel parking of the sash in a partially open position, in which the sash is positioned in front of an opening in the element frame, seen in the horizontal direction, and wherein the guide elements are designed to move the sash parked in parallel in the vertical direction by moving the guide elements in the guide rails.

A device for the sliding movement of doors and wardrobe doors (12) provided with at least two doors (14,16) or (62, 64, 66) sliding so as to move along respective and parallel guides (18) and (18) fixed near the front edge of the upper base (20, 60) of said wardrobe, comprising: at least one pair of carriages (22), provided with at least one wheel or roller (32), fixed to the inner front of each door (14) and (16) at or near the respective upper edge; a plate-like element (22) for the direct attachment of at least one of the carriages (22) to the doors (14) or (16); at least one frame with an inverted U cross-section (46), and/or (46) supporting a wheel or roller (32); opposite air pistons (24) fixed to the end of the guides (18) along which the wheels or rollers (32) of the carriages (22) slide for the cushioned stop at the end stroke upon closing and opening of said carriages, and thus of the doors (14) and (16). Said device comprises a support (30) housing a piston (40) surmounted by an integral pincer or elastic clamp (44), said support (30) is fixed to at least one of the frames with an inverted U cross-section (46) or (46).

A system for reversibly dividing a space is disclosed. Independent panels, with track followers attached to both narrow sides, move along parallel tracks. The panels start in an overhead storage space. The tracks are shaped such that as the panels move from the storage space into the space to be divided, one panel stops higher and the next panel slides down and then under the first panel. These panels preferably form a single-plane divider in the space.

A system for reversibly dividing a space is disclosed. Independent panels, with track followers attached to both narrow sides, move along parallel tracks. The panels start in an overhead storage space. The tracks are shaped such that as the panels move from the storage space into the space to be divided, one panel stops higher and the next panel slides down and then under the first panel. These panels preferably form a single-plane divider in the space.

A removable balance system for a sash movable vertically between a pair of window jambs. The balance system includes a U-shaped balance channel member and a double block and tackle system disposed within the U-shaped balance channel with a locking feature selectively operable between extending laterally outwardly from the shoe for engagement with an opening in the jamb channel and recessed within the shoe. In operation the locking feature is inserted into an upper most opening in the jamb channel and the cord of the double block and tackle is withdrawn to an extent sufficient for the locking feature to engage a second opening in the jamb channel thereby securing the balance system in place within each jamb providing a seat for the sash atop the two laterally disposed shoes.

The present invention is generally a movable barrier assembly that includes a screen garage door that may be remotely operated to open and close an entry to a garage, thereby facilitating ventilation, and preventing debris such as leaves, insects, etc. from entering the garage. In an exemplary embodiment, a screen assembly includes a first track running substantially parallel to a second track on which a garage door travels. A movable barrier operator that actuates the garage door and screen door may include a first motor to operate the screen door, and a second motor to operate the garage door. In exemplary embodiments, a single control unit is configured to operate both motors and thus operate each movable barrier.

The present invention is generally a movable barrier assembly that includes a screen garage door that may be remotely operated to open and close an entry to a garage, thereby facilitating ventilation, and preventing debris such as leaves, insects, etc. from entering the garage. In an exemplary embodiment, a screen assembly includes a first track running substantially parallel to a second track on which a garage door travels. A movable barrier operator that actuates the garage door and screen door may include a first motor to operate the screen door, and a second motor to operate the garage door. In exemplary embodiments, a single control unit is configured to operate both motors and thus operate each movable barrier.

The present invention is generally a movable barrier assembly that includes a screen garage door that may be remotely operated to open and close an entry to a garage, thereby facilitating ventilation, and preventing debris such as leaves, insects, etc. from entering the garage. In an exemplary embodiment, a screen assembly includes a first track running substantially parallel to a second track on which a garage door travels. A movable barrier operator that actuates the garage door and screen door may include a first motor to operate the screen door, and a second motor to operate the garage door. In exemplary embodiments, a single control unit is configured to operate both motors and thus operate each movable barrier.