Abstract: An animal husbandry tunnel door with adjoining extrusions for closing a tunnel ventilation opening typically in a broiler house has opposing faces with top, bottom and side edges. The faces sandwich an insulation layer. The adjoining extrusions have a first door top, bottom and side extrusion, along with a second door side edge extrusion. The first door top, bottom and side edge extrusions each have parallel inner prongs with barbs and adjacent parallel outer flanges forming two slots therebetween for receiving the top, bottom and side edges of the opposing door faces as the inner prongs with barbs pass into the insulation and are held thereat. The second door side edge extrusion has parallel inner prongs adjacent parallel outer flanges forming two slots therebetween for receiving the other side face edges as the inner prongs with barbs pass into the insulation and are held thereat.

Abstract: The present invention relates to a form for molding building components, such as columns, having a desired size, shape, and surface features from solidifying building materials such as concrete. The form is sculpted from a plastic material such as polystyrene or urethane. The cylinder is hollowed so that the interior of the resulting form has the size, shape, and surface features of the desired building component.

Abstract: Vacuum cleaner attachment storage in recesses beneath a floor supported vacuum cleaner housing with pivoted latch elements for attachment retention which does not require increased cleaner housing dimensions or a cover for the stored attachments, either to conceal the stored attachments or to prevent dirt collection in the storage recesses.

Abstract: A vacuum cleaner hose connection fitting is provided which can accommodate attachments both internally and externally thereon, and a single latch device is provided capable of securing either internally or externally accommodated attachments to the hose fitting.