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freepatentsonline.com: Flexible or portable closure, partition, or panel


Sliding door magnetic latch
A magnet holder constructed of a resilient material as a plural-sided box has an open side. A bar magnet within the magnet holder extends outwardly from the open side. A second side of the box has an arcuate convex shape extending outwardly. A hollow door frame strut provides a first interior surface abutting a third side of the box. The magnet abuts a second interior surface of the strut with the second side of the box abutting a third interior surface such that the arcuate shape is flattened, springfully wedging the box between the first and second interior surfaces of the strut and securing the magnet holder in place within the strut.

Progressive resistance lifting mechanism for a window covering
A lifting mechanism is provided for a window covering which allows a bottom rail of the window covering to maintain a static position unless raised or lowered by a user. The lifting mechanism is included within either a top or bottom rail of the window covering. The lifting mechanism includes cords which pass from a rail including the lifting mechanism to a rail not including the lifting mechanism and about cord redirectors located within the rail including the lifting mechanism. The lifting mechanism includes spools and associated springs for gathering excess portions of the cord thereon. A progressive resister is coupled to the spools with the progressive resister providing different amounts of resistance to spool rotation depending on the amount of cord upon each spool.

Twist release safety stop ball for window covering cord
A safety stop ball includes a post and a nut which travels along a spiral path relative to the post. The nut and the post are biased toward each other to retain the ends of lift cords. As the nut is displaced relative to the post, the lift cords are released.