Abstract: A dry sprinkler installation and sealing device for a cold environment is disclosed. The dry sprinkler installation includes a supply conduit having a first end adapted to communicate with a fire retardant fluid source and a second end supporting a sprinkler head. The supply conduit is dimensioned to extend through an opening in a wall of a cold environment, e.g., a freezer ceiling. A flexible sealing device is positioned about the supply conduit adjacent an exterior surface of the cold environment. A first end of the sealing device is secured about the supply conduit and a second end of the sealing device is secured to an exterior surface of the cold environment. The flexible sealing device allows for radial and axial adjustments to the supply conduit and sprinkler head without compromising the integrity of the sealing device.

Abstract: A ventilator manifold provided with access ports and method thereof for accessing the interior chamber of the manifold and cleansing secretions from the inner wall of the manifold's interior chamber with a cleaning device without having to disconnect the patient from the respiratory support system.

Abstract: A digger for root crops, such as peanuts, includes two or more digger units depended from a frame drafted by a tractor. Each digger unit includes a screw conveyor, a guide pair helically wrapped 180.degree. around the screw conveyor, and a hydraulic motor to rotate the screw conveyor. Stem and leaf portions of the plants extending above the bed surface are engaged within and moved rearward by flights of the rotating screw conveyor. The stems slide within the helical guide slot, which lifts the peanuts from the soil, moves them outboard of the conveyor, and inverts the plants above the conveyor. The conveyors are angled to the direction of draft so that the inverted plants are discharged from the slots in a windrow on the center furrow between the dug beds. A roller between the conveyors forms a mound or hill in the center furrow to elevate the windrow above standing water.