Abstract: A sliding door assembly comprises a plurality of door panels for coordinated movement along an upper guide track. A bracket is mounted to the upper end of one of the door panels. The bracket comprises an elongated member and defines a plurality of openings for receiving fasteners and roller mechanisms. At least one roller mechanism is secured to each of the door panels and slidably received within the upper guide track. A pair of pulleys is secured to the bracket for carrying an endless cable and the door panels are secured to the cable. In a fully open position, a first outer door panel of the door panels is secured to the cable of the immediately adjacent door panel at a side of the immediately adjacent door panel opposite to the lead edge.

Abstract: A kit for mounting a frame in a partitioning structure such as a door, and a door including a vision lite. The kit includes a male frame half, a female frame half, and threaded fasteners. The female frame half defines an elongated channel, where the channel includes a bottom with walls extending therefrom with a width adapted to receive a threaded fastener. The first frame piece and the second frame piece are configured to be mounted to each other when the threaded fasteners extend through the first frame piece and into the channel. An installation of such a kit in a door, with window glass, may provide a vision lite in the door. The channel may be configured such that the threaded fasteners penetrate the bottom of the channel when the first frame piece and the second frame piece are installed. The threaded fasteners may be self-tapping screws.

Abstract: A sliding door assembly comprises an upper guide track and a plurality of door panels slidably received in a portion of the upper guide track for movement along the track. A bracket is mounted to a top edge of at least one of the door panels. At least one roller mechanism is secured to the bracket and to each of the door panels. The at least one roller mechanisms are slidably received within the upper guide track. A pair of pulleys is secured to the bracket for carrying an endless cable for rotation around the pulleys. Means are provided for securing the other door panels to the cable. In a first position, the side edges of the door panels are contiguous and a first outer door panel is secured to the cable of the immediately adjacent door at the side edge opposite to the direction of closing movement of the door panels.

Abstract: A threshold system and threshold insert for transitions through doorways. An insert for a threshold saddle to be used with a door includes an elongated member for providing a seal along a bottom edge of the door and to be received in a seat in the saddle. The insert defines a door engagement surface adapted to extend across both the seat and the change in elevation to engage the door to provide the seal. When installed for use, the door engagement surface, the saddle adjacent to the sides of the seat, or both provide an overall slope of at least or approximately 2 units horizontal to 1 unit vertical. A threshold system includes a saddle and the insert. The door or an appurtenant door shoe may have an angled surface to interface with the door engagement surface of the insert.

Abstract: A kit for mounting a frame in a partitioning structure such as a door, and a door including a vision lite. The kit includes a male frame half, a female frame half, and threaded fasteners. The female frame half defines an elongated channel, where the channel includes a bottom with walls extending therefrom with a width adapted to receive a threaded fastener. The first frame piece and the second frame piece are configured to be mounted to each other when the threaded fasteners extend through the first frame piece and into the channel. An installation of such a kit in a door, with window glass, may provide a vision lite in the door. The channel may be configured such that the threaded fasteners penetrate the bottom of the channel when the first frame piece and the second frame piece are installed. The threaded fasteners may be self-tapping screws.

Abstract: Methods, systems and apparatuses are disclosed for improving the treatment of wastewater in a dispersal drainage trench by facilitating the direct aeration of wastewater passing through a drainage unit.