Abstract: A precipitation resistant ventilator for a structure enclosing an interior space. The ventilator encloses a space that is in communication with the structure interior space. A thin sheet of air permeable water resistant material is disposed within the ventilator interior. The thin sheet of air permeable water resistant material forms a barrier that excludes the entry of precipitation and other foreign matter into the roof structure while still allowing air exchange.

Abstract: A precipitation resistant ventilator for a structure enclosing an interior space. The ventilator encloses a space that is in communication with the structure interior space. A thin sheet of air permeable water resistant material is disposed within the ventilator interior. The thin sheet of air permeable water resistant material forms a barrier that excludes the entry of precipitation and other foreign matter into the roof structure while still allowing air exchange.

Abstract: A precipitation resistant ventilator for a structure enclosing an interior space. The ventilator encloses a space that is in communication with the structure interior space. A thin sheet of air permeable water resistant material is disposed within the ventilator interior. The thin sheet of air permeable water resistant material forms a barrier that excludes the entry of precipitation and other foreign matter into the roof structure while still allowing air exchange.

Abstract: A precipitation resistant ventilator for a structure enclosing an interior space. The ventilator encloses a space that is in communication with the structure interior space. A thin sheet of air permeable water resistant material is disposed within the ventilator interior. The thin sheet of air permeable water resistant material forms a barrier that excludes the entry of precipitation and other foreign matter into the roof structure while still allowing air exchange.

Abstract: A precipitation resistant ventilator for a structure enclosing an interior space. The ventilator encloses a space that is in communication with the structure interior space. A thin sheet of air permeable water resistant material is disposed within the ventilator interior. The thin sheet of air permeable water resistant material forms a barrier that excludes the entry of precipitation and other foreign matter into the roof structure while still allowing air exchange.

Abstract: A moisture barrier paper is comprised of a fiber mat and a unique moisture barrier coating. The moisture barrier coating coats substantially every fiber throughout the fiber mat. The moisture barrier paper is created in a wet-end, on-machine process where a liquid, moisture barrier coating is sprayed onto a forming fiber mat and is drawn through the fibers with vacuum. The moisture barrier paper has top and bottom surfaces that are substantially free of wax and polymeric water repellants. The moisture barrier paper is completely repulpable.

Abstract: An air deflector for installation with a roof ventilator having a pair of vent parts defining a multiplicity of air passages, the air deflector comprising a base member and a generally upright air flow blocking member extending upwardly from the base member at a generally acute angle of 75.degree.. Two air deflectors extend along the entire length of the roof ventilator proximate to the outer edge of each opposing vent part. The base member is disposed between the bottom surface of the corresponding vent part, and the upright air flow blocking member confronts and is spaced apart a selected distance from the outer edge of the vent part and angles inwardly slightly toward the vent part. The top edge of the upright air flow blocking member angles slightly outward away from the vent part, and is disposed at approximately the same height as the top panel of the roof ventilator.

Abstract: A ridge vent comprising a pair of opposing vent parts each fabricated from a plurality of stacked, interconnected layers of a corrugated plastic sheet material and a top panel extending between and connected to the opposing vent parts, with the entire assembled ridge vent being rolled into a spiral or coil, and secured in that configuration for later installation on a roof. The assembled ridge vent is rolled into the spiral configuration from an initially planar configuration by engaging a leading end of the ridge vent and rolling the ridge vent onto a drum or mandrel to form a tight, uniform spiral. The rolled vent can then be labeled and banded or packaged. The fabrication process from bulk rolls of sheet material to packaged roof vents can be substantially continuous and automated. Roof vents of various lengths or widths can be manufactured with only minor adjustments or substitutions in the fabrication equipment.

Abstract: A rolled ridge vent comprising a longitudinal blank of corrugated plastic sheet material having an undivided top panel extending its length, and segmented portions extending laterally from each side of the top panel scored to be folded into opposing pairs of vent parts. Adjacent segmented portions may be cut entirely through or perforated for manual separation. The entire blank is spiral rolled in the longitudinal direction. The ridge vent is installed by placing the roll on the peak of the roof with the free end extending over the top and oriented away from the direction of installation. The blank is unrolled to expose at least one pair of segmented portions, which are then folded under the top panel to form the vent parts and fastened to the roof. This process is repeated until the desired length is installed. Foam end caps and air deflectors optionally may be installed.

Abstract: A ridge peak roof ventilator comprising a pair of vent parts disposed on opposing sides of an opening in a roof peak, and a top panel disposed above and connecting each of the vent parts. The vent parts may be of unitary construction, folded from interconnected panels, or assembled from individual layers of sheet material, and each forms a multiplicity of air passages through which air flows from the interior to the exterior of the roof ventilator. The top panel is constructed from double-faced corrugated plastic having a pair of planar plies and a convoluted intermediate ply. The underside of the top panel is routed along the centerline to form a concave recessed area, thereby cutting away a section of one planar ply and part of the intermediate ply to form oval-shaped openings. Each opening has side walls traversing concave arcuate paths between a maximum height adjacent the side edges of the recessed area and a minimum height along the centerline.

Abstract: A stackable tray for paper stock, drawings sheets, or the like comprising a bottom panel, opposing side walls extending upwardly from the bottom panel along the side edges thereof, and front and walls extending upwardly from the bottom panel along the front and rear edges thereof. The front wall is comprised of a pair of spaced apart front wall segments defining an opening traversing substantially the length of the tray. The walls define a top ledge extending upwardly and a bottom ledge extending downwardly. The top and bottom ledges are sized and positioned so that the top ledge of one tray is received within and bounded by the bottom ledge of a like tray when the trays are stacked, or vice versa. The bottom panel defines a plurality of recesses aligned in rows and columns. A cross brace traverses each tray and is received within a recess formed in the underside of the bottom panel.

Abstract: A ridge cap type roof ventilator comprising a plurality of sections aligned longitudinally with one another and hingedly interconnected along their confronting ends such that the plurality of sections may be folded or pivoted into parallel abutting contact. Once folded, several roof ventilators may be stacked with their vent parts in an overlapping, interfitted pattern to provide a stable column or stack having a minimal volume to conserve the space required to store or ship a predetermined number of the roof ventilators. The sections may be unfolded for positioning and installation on the ridge of the roof.

Abstract: An attachment is provided for a forklift. The attachment including a frame having a mechanism for attaching said frame to the forks of a forklift. A carriage assembly is provided including a carriage frame and drum engaging member. The carriage frame is connected to the main frame for pivotable movement about a horizontal axis of rotation. The drum engaging member is connected to the carriage frame for rotational movement about the axis of rotation. The drum engaging member includes first and second clamps mounted on the drum engaging member for movement relative to one another between open and closed positions.

Abstract: A tote container which is cut to form a blank from a single sheet of double-faced corrugated plastic material, the blank being scored to define individual panels, and those panels folded to an upright position to define a receptacle region. The corrugations of the plastic material define a grain, and the blank for the tote container is oriented upon the sheet of corrugated plastic material such that the lines of grain cross the scored fold lines separating the panels at an acute angle thereto, thereby permitting individual lines of grain to extend under the receptacle region of the tote container and traverse the tote container both laterally and longitudinally. This prevents the planar plies of the double-faced corrugated plastic sheet material from being perforated, and the convoluted intermediate ply from being crushed along the length thereof, when the blank is scored.

Abstract: A pail and bail in which the bail is molded integrally with the pail and includes a circular cross-section bead which extends around the pail coplanar with and spaced apart from the rim. The bead is connected to opposing sides of the pail either by a rib that has generally triangular fins which curve inwardly between two vertical flanges that project outwardly from the side wall of the pail, or by a single flange member that flares laterally outwardly and radially inward along a thin rectangular or flattened oval segment of the bail. When the handle segments of the bail are pivoted upwardly and inwardly toward one another to a position disposed above the open top of the pail, the entire bead forms a figure eight pattern with smoothly curving loops without creases or fold lines. The components connecting the bail to the pail will flex inwardly when the pail is loaded and supported by the bail.

Abstract: A ridge peak roof ventilator comprising a pair of vent parts disposed on opposing sides of an opening in a roof peak, and a top panel disposed above and connecting each of the vent parts. The vent parts may be of unitary construction, folded from interconnected panels, or assembled from individual layers of sheet material, and each forms a multiplicity of air passages through which air flows from the interior to the exterior of the roof ventilator. The top panel is constructed from double-faced corrugated plastic having a pair of planar plies and a convoluted intermediate ply. The underside of the top panel is routed along the centerline to form a concave recessed area, thereby cutting away a section of one planar ply and part of the intermediate ply to form oval-shaped openings. Each opening has side walls traversing concave arcuate paths between a maximum height adjacent the side edges of the recesesd recessed area and a minimum height along the centerline.