Abstract: A movable partition system includes a movable partition, a floating jamb attached to an end of the movable partition and located within a pocket configured to retain the movable partition when in a retracted position, at least two base plates attached to the floating jamb, and at least two jamb stops attached to opposing interior walls of the pocket. Each of the at least two jamb stops are configured to engage a respective base plate of the floating jamb, wherein the floating jamb, the at least two base plates, and the at least two jamb stops are configured such that disengaging the floating jamb from a secure position within the pocket when the movable partition is in an extended position requires disengaging one of the at least two jamb stops from the respective base plate on each side of the movable partition. Methods of providing a security barrier are disclosed.

Abstract: Movable partition systems include a movable partition and an intumescent material positioned to seal a gap at a periphery of the partition. In some embodiments, masses of intumescent material may be shaped and positioned to expand toward one another, contact one another, and form a seal therebetween at a periphery of the partition when the movable partition is exposed to fire. A fire barrier may be provided by extending a partition along a track assembly, and heating an intumescent material to cause the intumescent material to expand, char, and form a seal extending along at least a portion of a periphery of the movable partition. Upon installing a movable partition, at least one mass of intumescent material may be positioned to seal at least a section of a gap at a periphery of the movable partition when the at least one mass of intumescent material is exposed to fire.

Abstract: A pleated roller shade system allows a thin flexible shade fabric, such as, for example, silk, to be wrapped around a roller tube. The system comprises a pleating bar mounted parallel to the roller tube and having a fabric-receiving opening that defines, for example, a serpentine path. The shade fabric is received through the fabric-receiving opening and is folded by the pleating bar, such that the shade fabric is wrapped around the roller tube in folds as the roller tube rotates. The shade fabric is neatly wrapped around the roller tube (i.e., bunching of the shade fabric is avoided) and is stored out-of-sight when rolled up.

Abstract: A partition wall, upwardly movable into storage position and downwardly movable into vertical, down position. The wall comprises a plurality of similar trains of elongated members. The members of each train are arranged to form a single pantograph forming longitudinally aligned rows of diamonds. The trains are spaced laterally to form a wall plane and oriented so that the diamonds of the pantographs operate in a plane at a 90° angle to that wall plane. A plurality of panels are provided, each panel being secured to a pair of corresponding members in adjacent trains. The panels are secured to corresponding pairs of opposed sides of the diamonds. Means are provided to raise and lower the trains at a similar rate. The pantographs are contracted when the wall is in a storage position and the elongated when the wall is in down position. The panels form a vertical wall when the pantographs are elongated in down position.

Abstract: An automatic door and method of operating the same. The door includes a first processor which may be located proximate a leading movable edge of the door and a second processor which is remotely located from the first processor. The first and second processors are operably coupled with a bus configured to transmit digital signals therebetween. One or more input devices may be coupled with the first processor to indicate the status of an operational parameter of the door. Operational parameters are transmitted to the second processor, which controls a drive operably coupled with the door to control the position thereof in response to such operational parameters. The second processor is configured such that, upon breakdown of communication between the first and second processors, the second processor causes the door to enter into a predetermined status.

Abstract: A mechanical curtain, upwardly movable into open position and downwardly movable into closed position, the curtain comprising: a) a plurality of similarly constructed trains of elongated members, the members of each train arranged to form a single pantograph forming longitudinally aligned rows of diamonds, the trains spaced laterally to form a curtain plane and oriented so that the diamonds of the pantographs operate in a plane at a 90° angle to that curtain plane, b) a plurality of bars secured in parallel spaced fashion to corresponding members in adjacent trains, perpendicular thereto, and, c) one or more cables to raise and lower the trains at a similar rate the pantographs being contracted when the curtain is in open position and the pantographs being elongated when the curtain is in closed position.