Abstract: An improved liner for a container in which gases, liquids, or powders are stored. The liner is a multi-layer structure made in a roto molding machine. The liner includes a first outer layer made of metallocene polyethylene, an intermediate gas and liquid impermeable layer, and one or more inner layers made of thermoplastic material compatible with the material stored inside the container. During the molding process, the three layers are made sequentially with the second and third layers being bonded and fused to the adjacent layer to form a uniform composite layer. The outer layer is made of metallocene polyethylene with superior rigidity and relatively low coefficient of thermal expansion making the liner less susceptible to cracking and useful as a layup structure for molding a structure around it. The liner is then used as a layup structure for outer fibers and infused resin.

Abstract: An apparatus for drying bulk material can include a housing defining a chamber, an inlet for receiving the bulk material into the chamber, and an outlet for discharging the bulk material from the chamber. At least one conveyor mechanism can be disposed within the housing and can be arranged to convey the bulk material from the inlet to the outlet. A ventilation system can be coupled to the chamber and configured to remove water vapor from the chamber. A method of drying bulk material can include receiving the bulk material into a chamber, conveying the bulk material within the chamber, removing water vapor from the chamber, and discharging the bulk material from the chamber. The system can be used to process peat moss or other bulk materials, such as soil, manure, wood pulp, vegetables, or other products.

Abstract: An apparatus includes a top portion and a middle portion. The top portion includes an inlet for receiving peat moss. A feeding mechanism delivers the peat moss from the top portion to the middle portion. A compression mechanism housed in the middle portion includes at least one roller assembly for at least partially dewatering the peat moss. The roller assembly can include upper and lower rollers. Peat moss passing between the rollers can be pressed to reduce moisture content of the peat moss. The lower roller can include perforations allowing moisture to drain away from the peat moss. Speeds of rotation of the rollers and/or a distance between the rollers can be adjustable. A bottom portion underneath the middle portion can include an outlet for discharging the peat moss.

Abstract: An improved liner for a container in which gases, liquids, or powders are stored. The liner is a multi-layer structure made in a roto molding machine. The liner includes a first outer layer made of metallocene polyethylene, an intermediate gas and liquid impermeable layer, and one or more inner layers made of thermoplastic material compatible with the material stored inside the container. During the molding process, the three layers are made sequentially with the second and third layers being bonded and fused to the adjacent layer to form a uniform composite layer. The outer layer is made of metallocene polyethylene with superior rigidity and relatively low coefficient of thermal expansion making the liner less susceptible to cracking and useful as a layup structure for molding a structure around it. The liner is then used as a layup structure for outer fibers and infused resin.

Abstract: A system for constructing a load bearing surface includes a plurality of modular ground covering panels. Along at least one first side edge of each of the panels, the lower surface projects beyond the upper surface to define a lower peripheral tab. Along at least one second side edge of each of the panels, the upper surface projects beyond the lower surface to define an upper peripheral tab. The lower peripheral tab of one of the panels and the upper peripheral tab of another one of the panels overlappingly engage so that the upper surfaces of the panels are in adjoining relation to form the load bearing surface. A connector assembly includes a first connection element fixed to the lower peripheral tab, and a second connection element that releasably fastens the upper peripheral tab to the first connection element to secure the panels together.

Abstract: A system for constructing a load bearing surface includes a plurality of modular ground covering panels. Along at least one first side edge of each of the panels, the lower surface projects beyond the upper surface to define a lower peripheral tab. Along at least one second side edge of each of the panels, the upper surface projects beyond the lower surface to define an upper peripheral tab. The lower peripheral tab of one of the panels and the upper peripheral tab of another one of the panels overlappingly engage so that the upper surfaces of the panels are in adjoining relation to form the load bearing surface. A connector assembly includes a first connection element fixed to the lower peripheral tab, and a second connection element that releasably fastens the upper peripheral tab to the first connection element to secure the panels together.

Abstract: An improved liner for a container in which gases, liquids, or powders are stored. The liner is a multi-layer structure made in a roto molding machine. The liner includes a first outer layer made of metallocene polyethylene, an intermediate gas and liquid impermeable layer, and one or more inner layers made of thermoplastic material compatible with the material stored inside the container. During the molding process, the three layers are made sequentially with the second and third layers being bonded and fused to the adjacent layer to form a uniform composite layer. The outer layer is made of metallocene polyethylene that has superior rigidity and relatively low coefficient of expansion properties making the liner less susceptible to cracking and useful as a layup structure for molding a structure around it. Once the liner is fabricated, the liner may be a build up structure to manufacturer a container or tank around the liner using either blow molding or roto molding processes.

Abstract: A system for constructing a load bearing surface includes a plurality of modular ground covering panels. Along at least one first side edge of each of the panels, the lower surface projects beyond the upper surface to define a lower peripheral tab. Along at least one second side edge of each of the panels, the upper surface projects beyond the lower surface to define an upper peripheral tab. The lower peripheral tab of one of the panels and the upper peripheral tab of another one of the panels overlappingly engage so that the upper surfaces of the panels are in adjoining relation to form the load bearing surface. A connector assembly includes a first connection element fixed to the lower peripheral tab, and a second connection element that releasably fastens the upper peripheral tab to the first connection element to secure the panels together.

Abstract: In this ventilated double-wall plastic container, each hole structure has a central hole surrounded by a solid flange extending along the inside wall of the double-wall structure. The hole structure also has a spacer portion connecting the solid flange to the outside wall of the double-wall structure. The wall segments of the hole structure between the spacer portion and the flange and between the spacer portion and the outside wall of the container define angles that are either obtuse angles or right angles. In another aspect, the mold for manufacturing the double-wall container has spaced-apart inside and outside metal walls, a plurality of openings in the outside metal wall, and hole-forming inserts mounted in the openings and projecting toward the inside wall. A projecting surface on each of the hole-forming inserts defines with the inside wall a space of even thickness surrounding a pin at the centre of the insert.