摘要:
Supporting element constituted by two boards or plates (1, 2), and therebetween located zigzag shaped distance elements in the shape of strips (3). The strips are also of board or similar material that thas been bent to zigzag shape preferably after machining of the bending lines or precompressing these lines. The zigzag shaped strips and the plates or boards are glued together to one unit. Preferably the zigzag shaped strips are provided with reinforcement in the shape of threads of plastic, glass fibres etc. perpendicular to the bending lines.
摘要:
Flächenförmiger Sandwichformkörper, der aus zwei äußeren festen Deckschichten und wenigstens einem, durch Tiefziehen verformten und mit Kunstharz versehenen Flächengebilde aus Fasermaterial als Kern besteht. Das den Kern bildende Flächengebilde aus Fasermaterial kann z.B. eine Maschenware sein, die mit einem aushärtbaren Kondensationsharz versehen ist.
摘要:
A solar energy collector having as its basic component, a moulded multi-pocketed collector panel, the pockets of which are modified polyhedral or tetrahedral shapes, to increase exposed surface and heat transfer areas. This panel, having various polyhedral pockets in combination with glazing and a back cover, providing an overall, structurally sound collector which may have degrees of curvature ranging from flat to compound to spherical. A through-window ventilation receptacle may be used to support the collector, and may also serve as a plenum, if desired, to facilitate intake and distribution of room air.
摘要:
A solar energy collector having as its basic component, a moulded multi-pocketed collector panel, the pockets of which are modified polyhedral or tetrahedral shapes, to increase exposed surface and heat transfer areas. This panel, having various polyhedral pockets in combination with glazing and a back cover, providing an overall, structurally sound collector which may have degrees of curvature ranging from flat to compound to spherical. A through-window ventilation receptacle may be used to support the collector, and may also serve as a plenum, if desired, to facilitate intake and distribution of room air.
摘要:
A multiwall sheet (30) comprising a first wall (2); a second wall (4); a plurality of ribs (8) extended between the first and second walls (2, 4); and a plurality of mid-ribs (6), wherein one mid-rib (6) extends between each two adjacent ribs (8), wherein the mid-ribs (6) extend at a mid-rib angle (18) relative to an adjoining rib (8), and wherein the mid-rib angle (18) is not 90° relative to a rib (8) to which it attaches, wherein the mid-ribs (6) attach only to adjacent ribs (8), and wherein the mid-ribs (6) do not attach to either the first or second walls (2, 4).
摘要:
A fiberboard panel is formed from at least one corrugated sheet of molded cellulose fiber material having alternating ribs and grooves. Spaced slits are cut through the ribs on one face of the sheet and terminate short of the opposite face so as to form at least one slotted portion of more flexibility which may be bent to form a curve. The corrugated sheet is sandwiched between two flat sheets of the same material to form a composite panel. The corrugated sheet or panel is formed by a wet processing method including successive cold and hot press steps in which a wet mat is pressed between an opposing perforated platen and non-perforated, elastomeric material platen of cross-sectional shape substantially matching the desired panel shape and dimensions.