Movable screen panel closure apparatus

摘要: An automatic closure assembly for a sliding panel, particularly of the screen door type, is disclosed. One or more power springs, operable in their linear ranges are mounted within compact housing configured ready attachment to surface adjacent panel. The springs apply tension cord wound on take-up reel housing. end screwed panel such that as moved an opening direction, spring(s) forces Different selections provided enabling operator select plurality different discrete be applied by