Abstract: An article of insulation and its method of manufacture, in which a planar sheet member has a plurality of score lines (24--24) made in the exterior surface thereof, and is then folded along the score lines (24--24) and then sealed to form an enclosed, airtight volume. Positioned between the upper and lower portions (12,14) of the sheet member are a plurality of thin, flexible, resilient, spaced interior elements (36--36). The combination is deformed to form corrugated surfaces and then expanded so that the upper and lower portions are spaced apart and the interior elements are again substantially flat. The space between the upper and lower elements is evacuated.

Abstract: A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solidified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the lines of adhesive and bond the layers together.

Abstract: Hollow chamber plates of synthetic material are produced from two thermoplastic cover layers, which preferably have been produced immediately beforehand by extrusion, which are brought into contact with a large number of previously produced webs and welded together. By setting the webs into wavy lines running against each other, a high degree of rigidity in the hollow chamber plate is attained. A device for the production of such hollow chamber plates is described.

Abstract: A process for producing a laminated panel core made of stainless steel includes the step of preparing a core of the laminated panel by subjecting stainless steel foils to repeated outward and inward foldings in a constant mode in one direction to make a plurality of multi-layered folded sheets of stainless steel. An adhesive is applied to a portion of the surfaces of the folded sheets and a desired number of the multi-layered sheets are laminated. The adhesive causes the sheets to adhere to one another in the areas of application of the adhesive. The laminate is sliced in a plane perpendicular to the plane generally defined by each of the multi-layered sheets into an appropriate small thickness and is extended and deformed in a plane parallel to the plane in which the laminate is sliced and in the direction of lamination of the sheets. A multi-layered sheet for use in a process for forming laminated panels and a stainless steel foil core for use in a laminated panel are also disclosed.

Abstract: A collapsible, open cell void filler (2) is made by stacking a series of paper core sheets (58) and gluing the core sheets to one another at appropriate points (56) to create a generally hexagonal open cell core structure when expanded. The stack (60) of core sheets is cut along a series of cutting planes (62) to create rows of independently expandable hexagonal cells (16). The end cells (20) of each row are connected to one another by an outer sheet (18) to create a core slab (68). When the outer sheets are separated, the rows of cells expand from their collapsed, reduced volume condition to their expanded, increased volume condition. As the cells expand they separate laterally from one another along the cutting planes. This eliminates deformation of the cells and permits the full extension of the rows of cells. Deck sheets (6) can be fastened to the outer sheets so that when the core slab is expanded, the deck sheets lie adjacent the open cell ends (28).

Abstract: Sheets are stacked flat. The machine for implementing the invention comprises:a horizontal work surface (5) delimiting a laying template which defines a transverse median axis (7);a superposed delivery plane (10) for conveying individual sheets (1) bearing stripes of glue (2);a pair of parallel horizontal axis suction cylinders (13, 14) located between the work surface and the delivery plane, and disposed on either side of a vertical median plane (P--P');means (15) for counting the stripes of glue on each sheet to locate the middle stripe thereon; and p0 means (16) for localized gluing of the middle stripe of the sheet to be laid.Applicable to structures having alternating stripes of glue.

Abstract: Method and apparatus for manufacturing cellular blind material and in particular honeycomb blind material. A material feeding means moves along and parallel to a stack supporting means. The material feeding means feeds a layer of blind material onto the stack and a hot melt adhesive attaches the layer to the stack.

Abstract: A method of making a series of expandable tubular polygons by simultaneously pleating and joining two adjacent sheets of fabric.

Abstract: A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded along opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the lines of adhesive and bond the layers together.

Abstract: A honeycomb structure formed of two continuous lengths of pleated materials secured together intermediate the pleats. Each length of pleated material defines one side of the honeycomb structure. The two continuous lengths are secured together by feeding them longitudinally of their length and toward each other. At the location where the two lengths meet, they are joined together intermediate their pleats.

Abstract: A method of making a double-walled element utilizing a hollow tube for the inside and another hollow tube with greater dimension for the outside and a cell-structure to fill up the space between the two.

Abstract: A honeycomb structure formed of a continuous length of foldable material which is folded into a Z-configuration and stacked in layers which are adhered together. These layers form longitudinally extending cells, one on top of the other, of the honeycomb structure.

Abstract: A honeycomb structure formed of a continuous length of foldable material having its longitudinal edges folded over one side of the material and secured to a separate strip material. The strip material is also secured to the adjacent cell of the structure. In forming the honeycomb structure, a continuous length of material is fed longitudinally as the edges thereof are folded over onto one side. The strip material is then fed over the folded material and the edges of the strip material are secured to the folded edges of the continuous length of material. The combined structure is then directed into a loop whereby the center portion of the strip material comes into engagement with the other side of the continuous length of material and secured thereto to form the overlying cells.

Abstract: Mounting apparatus for expandable honeycomb insulation panels includes a head rail for anchoring the panel to a window jamb or wall and a sill rail at the opposite end of the honeycomb panel for contracting and expanding the honeycomb panel to move it upwardly and downwardly over the window surface. Lift mechanisms for the sill rail include a vertical drop cord lift system, a parallel bar cord guided system, and a continuous loop cord system. Edge seals for closing and sealing the end of the honeycomb insulation panel include a biased, elongated seal element positioned in side tracks for slideably guiding the honeycomb panel along a prescribed track while sealing the ends thereof. In an alternate embodiment, notched bearing edges are provided to accommodate a web track protruding therein. Other features include adjustable panel mounting, bracket, and cord lock roller.

Abstract: A method of manufacturing a shape from a composite material by applying laminations impregnated with plastic resin to a positive mold. At least one cellular, cellular-core layer is applied into the neutral zone of the laminations and embedded into them while the laminations are being built up. The cellular layer is a rigid foam. The cellular-core or honeycomb layer has the axis of each cell radial to that of the shape and can be single, double, or multiple. If double or multiple it may have an interior connective layer consisting of plastic, foil, glass cloth, non-woven carbon-fiber fabric, polyimide, or woven or non-woven fabric impregnated with plastic resin. The cellular-core or honeycomb layer is intended to make the shape more stable and flexurally strong.

Abstract: A honeycomb structure formed of two continuous lengths of pleated materials secured together intermediate the pleats. Each length of pleated material defines one side of the honeycomb structure. The two continuous lengths are secured together by feeding them longitudinally of their length and toward each other. At the location where the two lengths meet, they are joined together intermediate their pleats.

Abstract: A method of making a stiffened panel including subjecting two metal sheets, at least one capable of superplastic deformation and diffusion bonding, which are positioned face to face, to a bonding and deforming process during which the sheets are joined to one another at a series of spaced joint lines across their faces, the joint lines being interrupted by non-joined regions along their lengths but being otherwise substantially continuous, and during which parts of at least said one sheet between the joint lines and the non-joined regions thereof are superplastically deformed in a mould to form a series of cavities between the two sheets, portions of at least said one sheet on respective sides of each of the joint lines and the non-joined regions thereof being moved to form sidewalls of two neighboring cavities, these sidewalls being urged to lie adjacent one another over substantial parts of their areas, so that they become diffusion bonded, one to another, to form a common sidewall of neighboring cavities,

Abstract: A method of manufacturing a heat exchanger in which a laminate prepared by laminating many sheets one upon another so that the neighboring sheets may be formed with bonded portions and non-bonded portions, is expanded in such a direction that the respective sheets are spaced from each other so as to form flow channels or passages between the sheets at the non-bonded portions, and which employs the steps of printing patterns of bonded material onto the sheets, laminating the sheets, and subsequently expanding the laminate of the sheets to form the heat exchanger.

Abstract: A substantially planar reticulated material is formed by the conjunction of a plurality of strips of non-planar material so that the strips lie substantially perpendicular to the plane of the reticulated material with their edges lying coplanar with the reticulated material and forming opposite surfaces thereof. Each strip of nonplanar sheet material is formed on each opposite surface with a pattern of crests and valleys of repetitive wavelength such that each pattern repeat contains at least two crests and at least two valleys; in each pattern repeat the height of at least one crest or valley on at least one surface of the strip is different from that of at least one of the other respective crests and valleys on said surface; the recurring height difference produces a corrugation along the strip having a wavelength greater than the wavelength of the crests and valleys; and adjacent strips are abutted with the corrugation opposed to interfit at least one crest in a valley of each opposed corrugation.

Abstract: An apparatus having rotary shearing and forming dies which expand a web of formable material by imparting to the web a surface configuration having rows of generally sinusoidal convolutions extending longitudinally along the web, each row lying 180.degree. out of phase from abutting rows. The meshing rotary dies include flat portions defining a neutral zone wherein no web deformation occurs, with the result that each convolution in a row is joined to the next longitudinally succeeding convolution by a flat web section lying in the original plane of the formable sheet material. The expanded web is laminated to a flat web of paper-like material and the resulting composite web is converted to expanded cigarette wrappers.

Abstract: The invention concerns novel close-outs for sandwich structures and fabrication methods. The sandwich structures are formed by superplastic forming, accordion expansion, or a combination thereof. The close-out structure is formed from a plurality of flat sheets and members of predesigned shapes and sizes that are positioned in such a manner as to form high strength structures after unfolding and expansion. The corners of the close-out structure are either rounded or angled.

Abstract: A method of producing a unitary curved structure having a honeycomb core by coating a mold with gel, applying a layer of reinforced fiberglass plastic to the gel to receive, after partial curing, a light layer of chopped glass fibers (about 3/4 ounces/sq. ft.) and a mixture of catalyzed resin and chopped fiber strand. The resulting surface may be rolled to remove bubbles and oversprayed with catalyzed resin. A Raw Kraft paper honeycomb is placed into the wet laminate and completely covered with wax paper weighted with sand bags to approximately 10 pounds per square foot to press the honeycomb into place and seal same. The resin is absorbed in and climbs the honeycomb walls, and heat and styrene gas are liberated into the cells. The bags and wax paper are removed after partial cure, excess styrene fumes are blown away, and the honeycomb is lightly oversprayed with a catalyzed resin.

Abstract: A method for bonding molded components to films, sheeting or shaped members, in which the molded element is constituted of a plastic resin and filler, and is bonded to the sheeting or member. The sheeting or film or shaped member, or plurality thereof, and at least one prefinished but not yet hardened molding composition is introduced into a mold and maintained under a processing pressure and temperature for the hardening of the molded components. The preconditioned and still soft molding composition is directly bonded to the sheeting or film or shaped member in that the plastic resin of the molding composition is partially pressed outwardly during the molding operation so as to bond with the sheeting or shaped member, and thereafter cures or hardens.

Abstract: The rigidity of a panel of honeycomb material formed by parallel bands of thin metal spot-welded together and spread apart so as to form regular cavities, is broken by passing this panel in a gripped state between a plurality of cylinders 3, 4, 5 having a hard surface and whose axes are parallel and disposed in such manner as to produce in the panel as many changes in direction at roughly a right angle so as to fold or corrugate the walls of the cavities in a direction roughly parallel to the edges of the apices formed by the sides of the apices. A sandwich is formed by adhering at least one panel 6 treated in this way on a sheet 9 of a thermoplastic material, the sandwich is heated to a temperature for softening the thermoplastic material and the sandwich is placed on a form having the desired curvature and allowed to cool.

Abstract: A method of printing adhesive lines on a narrow and flexible ribbon-type material, whereby the adhesive lines are linearly spaced and applied transversely to both sides of the ribbon at the same time; and the relationship of the lines on the obverse side to the lines on the reverse side are staggered, with each side maintaining equal spaces between the lines. The preferred apparatus for performing the method of two-sided simultaneously printing is a rotogravure offset method which includes two rotogravure rolls and two rubber rolls, with each rubber roll resting on each rotogravure roll in pyramid fashion, whereby the two rubber rolls simultaneously make an impression on the ribbon material moving between them as they rotate.

Abstract: A method of assembly of a pair of stiles to a core sub-assembly which comprises a pair of rails and an expandable lattice spacer panel interconnecting the rails, which comprises clamping the end rails of the core sub-assembly and separating them from one another so as to expand the lattice spacer core, retaining the end rails in position while positioning stiles with respect to them, joining the stiles at the corners of the end rails, spot-joining the lattice to the stiles, and ejecting the door frames so formed from the machine.

Abstract: A multi-layer block to be developed into a disk having a honeycomb construction is initially developed into a columnar block, and then the bottom of the columnar block is radially developed for obtaining a core of a speaker diaphragm. A suitable circular thin layer is attached to the top and bottom of the core to complete a diaphragm. The columnar block may be developed by means of a cone-shaped tool into a truncated cone, and this truncated cone may be further developed into a flat disk by applying a force to the top thereof. Since the forces on development are applied to the block uniformly, the density of hexagonal sections of the honeycomb construction is uniform throughout the entire circumference of the core providing superior speaker characteristics.

Abstract: A method of joining two sheets of a non-magnetic material e.g. a plastics material, together along a join line comprises the steps of locating the sheets in a zone between a magnet and a body which is attracted by the magnet to bring the sheets together, causing the sheets to be moved through the zone either by moving the sheets or by moving the magnet and body, and joining the sheets together e.g. by heat or ultrasonic welding, in the zone or immediately after the sheets have passed through the zone. Apparatus for use in this method is also disclosed.

Abstract: The method and apparatus for fabricating honeycomb expandable insulation panels disclosed herein includes a method and apparatus for folding a continuous thin film of flexible plastic material into a uniform, open faced tubular configuration and for heat setting the folds in permanent sharp creases. It also includes a rotatable rack apparatus for continuously stacking successive lengths of the tubular formed plastic film one on top of another on flat surfaces and adhering them together in the form of a neat, uniform expandable panel of interior honeycomb cell configuration.

Abstract: A wood sheet-like product which comprises at least two sheets of wood and a pliable material bonded between the sheets. The wood and pliable material is bonded to form a unitary product and grooves through the wood sheets are spaced at intervals to facilitate bending of the product at the grooves. The sheet-like product is used to make wood honeycomb and corrugated wood by positioning grooves at predetermined locations on the product, bending the product into a certain configuration. In the case of honeycomb, adjacent strips of the product are adhered together in such a way as to form polygonal cells. To make corrugated wood one configuration has a series of high and low ridges secured to a facing skin. The methods of making the wood sheet-like product comprises inserting a pliable material between two sheets of wood bonding the sheets together and cutting a groove through the wood sheets but not through the pliable material.

Abstract: A method of making sandwich structures from a plurality of workpieces is disclosed. The method comprises providing a plurality of workpieces, each having principal opposed surfaces. The workpieces comprise first and second outer workpieces and at least two core workpieces. Each of the core workpieces have cutout portions defining at least one strip. The workpieces are treated at selected locations to inhibit joining at said locations. The treated workpieces are positioned in a stack contacting at their principal surfaces. The workpieces are joined, preferably by diffusion bonding, at their untreated contacting surfaces such that alternate longitudinal edges of superimposed strips are joined together and to the outer workpieces. Preferably, at least one chamber is enclosed by positioning the stacked workpieces relative to a plurality of shaping members.

Abstract: Method of manufacturing a sandwich assembly, e.g. an aluminum honeycomb sandwich assembly such as an inboard slat trailing edge for use in an aircraft wherein the spar cap spacing accuracy is retained through break-away tooling, e.g. a strip of low density core machined to the leading edge contour of the honeycomb core during core manufacture.

Abstract: A method of bonding a sheet of hard to bond thermoformable material to a core made of expanded thermoformable material is disclosed. The sheet of thermoformable material is heated to its glass transition temperature and then pressed into voids in the core forming a mechanical bond in addition to the chemical bond.

Abstract: Method of making attenuation sandwich panels having a cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a perforate sheet with an outer layer of porous fabric material adhered to the other surface. The combined perforate facing sheet and porous fibrous material have a predetermined open surface area prior to its adherence to the cellular core. A coating of adhesive is applied to either the facing sheets or to the faying surface of the cellular core. The sheets are then properly positioned with respect to the cellular core. The porous fabric surface of the combined perforate sheet and porous fibrous material is positioned against a perforated plate. The opposite surface of the perforated plate is positioned against a bonding tool that has a plurality of longitudinal grooves on its perforated plate adjacent surface.

Abstract: A composite expanded sheet reinforcing material especially useful as a stiffening, vibration and sound dampening, reinforcing laminate, and methods of manufacturing such sheet reinforcing material and of reinforcing articles therewith are disclosed. Formable sheet material having a layer of a foamable adhesive laminated thereon is passed through an expanding apparatus which forms rows of spaced, longitudinally staggered slits through the laminated sheet to form a series of elongated strands integrally joined at their ends by a series of joints or bonds. The slit material is expanded in a direction transverse to the longitudinal direction of the slits, causing the adhesive-coated surfaces of the strands and joints to be inclined at an acute angle to the principal plane of the formed reinforcing sheet.

Abstract: A method of forming a stack of unexpanded honeycomb core sheets from a continous web of which alternate sheets in the stack have linearly spaced and transversely extending lines of adhesive on one side spaced equally between similar adhesive lines on the others of the sheets when evenly stacked, such method including applying linearly spaced and transversely extending lines of adhesive on one face of the web, cutting the web parallel to the adhesive lines with one cut being made along the linear center of a line of adhesive and the next cut being made along the linear center of the space between the adhesive lines, and then stacking the cut sheets in even edge alignment resulting in the lines of adhesive being linearly staggered on one sheet with respect to those on the adjacent sheet.

Abstract: A single stage hot bonding process for manufacturing composite honeycomb core structures, such as airplane control surface structures, capable of withstanding bending and shear stresses, is disclosed. The single stage hot bonding process includes the steps of bonding a low density honeycomb core to a high density honeycomb core, shaping the combined honeycomb core, adhesively attaching spar caps to opposing surfaces of the high density honeycomb core, adhesively attaching a skin to the spar caps and the low density honeycomb core and curing the composite structure in an autoclave.

Abstract: Methods are disclosed for making a phase insulator for a desired core size from a phase insulator of a smaller size. The insulator may be severed from a sheet of insulating material or fabricated from planar insulation pieces alone or from a combination of planar insulation pieces and one or more filamentary pieces. Details of different methods, insulators, and apparatus are also disclosed.

Abstract: Apparatus is provided for packing articles, for example apples and other readily damaged fruits, in expanded slices of honeycomb using a conveyor on which the honeycomb is fitted, and carried through a filling station to an unloading station.Means are provided for expanding the slices of honeycomb and applying them to the conveyor in turn. A preferred arrangement is to supply the unexpanded slices one by one from a magazine and accelerate each slice so that it is projected into position for engagement by vacuum cups of an expansion device. Having been expanded, the slices are fitted to the conveyor where they are held in the expanded state by attachment devices provided thereon.At the unloading station, the packages of articles are removed from the conveyor for stacking in a confining carton while confining them in the horizontal direction to retain the position of articles packaged in incomplete cells.

Abstract: A adhesive sheet or film placed in contact with a surface network formed by the edges of the cell walls of a honeycomb core panel is reticulated and conformed to the shape of the surface network to form a bead of adhesive on the surface network and the contiguous portions of the cell walls without depositing excess adhesive onto the interior cell walls.

Abstract: A method and a machine for producing a latticework structure composed of cells of essentially parallelepipedon shape from e.g. paper coated on one side with synthetic resin. The web is formed over a mandrel into a sleeve of square cross-sectional shape while being successively advanced, and the sleeve is cut into bits which are flattened and by a step-by-step feeding mechanism positioned adjacent one another with one bit overlapping the following one over halfway in the transverse direction. The bits are bonded together while so positioned whereby flat elements are formed. These flat elements are stacked on top of one another by a mechanism ensuring that the elements are displaced by one cell width in their longitudinal direction and the stack of elements is then cut into pieces having the desired height of the cells. When extended, these pieces form the desired cellular latticework structure.

Abstract: Structural honeycomb material is expanded to the open, hexagonally cellular state, by pulling it out in the expansion direction. It is then compressed across the expansion direction and fed through a throat where it undergoes further compression which creases the constituent material. On being allowed to re-expand, the material adopts a stable open-cellular state. The feeding of the material through the throat is accomplished by driving means which engages the material across the expansion direction. This is an improvement on feeding it between driving rollers having rotational axes parallel with the major axes of the cells. Satisfactory compression in the throat is more easily obtained, especially with small cell-sizes.

Abstract: A heat exchanger comprises a general elongated rectangular member having major side surfaces of a honeycomb configuration. The member has at least one aperture extending therethrough and along the length of said member and an inner tubular member positioned in said aperture and in close thermal contact with said elongated member. Techniques are described which enable the positioning of the tube within said member.

Abstract: The heat exchange structure made by the method of the present invention comprises a plurality of sheets, desirably thin film plastic, bonded to one another to form the unitized structure. Alternate first pairs of sheets are bonded one to another along a first set of longitudinally extending bond lines positioned at first transverse locations along the width dimensions of the sheets. There is a second set of pairs of alternately spaced sheets (made up of adjacent sheets of adjoining first pairs of sheets) which are bonded one to another along a second set of longitudinally extending bond lines positioned transversely intermittently with respect to the first set of longitudinal bond lines. In the method of the present invention, the sheets are arranged in vertically stacked relationship. One set of bonding bars is positioned between sets of adjacent intermediate pairs of sheets at the locations where the first set of longitudinally extending bond lines are to be formed.

Abstract: For fluid interchange treatment, such as for heat exchanging or chemical interaction between a descending liquid and a rising gas, a flexible structure is provided which consists of stacked horizontal partition walls formed from pairs of sheets of non-woven fabric material, such as felt, heat-joined by plastic coatings on their inner surfaces and disposed in vertically-spaced parallel arrangement and sealed at their sides by accordion-folded sheets of flexible material. The paired sheets forming the spaced parallel partition walls of the structure contain ports which are arranged offset relatively to one another in successive sheets so that any fluid passing from top to bottom or vice-versa of the thus-formed cellular structure will pursue a zigzag path.

Abstract: A process with minor variations for producing a configuration of glass and/or any similar material such as plastic or epoxy is disclosed. The configuration is basically a honeycomb of pipes of transparent material attached to a transparent plate, such as window glass. The pipes are closed at one end by the plate. Then pipes prevent convection movement of a fluid parallel to the plate near its surface, except for very short distances. The unique inventive feature of the process lies in the fact that the honeycomb of pipes are produced simultaneously by a drawing process, during which either a part of a plate, which part is in the form of a grid, is softened, or a grid of new soft material is added to a plate, and the pipes are always attached to the plate both during formation and upon completion of formation.Also disclosed is a special configuration to render the pipes resistant to breakage under thermal stress.

Abstract: Apparatus for and method of manufacturing a heat insulating material from an uncured, strip-shaped felt of fibres containing a heat hardenable bonding substance firstly form corrugations extending across the entire width of the uncured felt and following one another in succession along the length of the felt. The corrugated felt is then cured as a cured felt containing fibres extending in a serpentine array along the felt, and conveyed along a path of travel extending past a cutter having a cutting blade extending transversely across the path, whereby the felt is cut longitudinally into two partial felts, the corrugations being severed so that the fibres form U-shaped arrays disposed in succession along each of the partial felts. This fibre array provides compressive strength combined with flexibility, enabling the insulating material to be used on various pipe sizes.

Abstract: A method of manufacturing structural honeycomb with superior insulation effectiveness, by the incorporation of integral heat radiation shields into the current process of manufacturing honeycomb hexagonal cells as formed by expanding a block of flat laminations. The heat radiation shields are initially in the form of flat ribbons of thin low emissivity metal coated plastic film, which are bonded between each lamination, in a direction normal to either the adhesive lines, strips, or stripes, or unmasked stripes, strips, or lines, used to bond the honeycomb nodes. The ribbons are formed of compressed pleats, which open up when the flat laminated block is expanded, closing off each hexagonal cell with spaced heat radiation shields.

Abstract: A structural solar energy collection and transfer arrangement and method, and method of assembly, including an insulating light-transmitting honeycomb sandwich array and a lateral fluid flow solar energy collection and heat transfer honeycomb sandwich array, the lateral fluid flow honeycomb sandwich array having dark, preferably non-gloss or dull surfaced, honeycomb walls and bottom surface for solar energy absorption and transfer to a fluid, preferably a liquid, passed laterally through fluid passageway openings formed in the honeycomb walls. Solar energy is absorbed and transferred to a flowing fluid, by passing solar light rays through the insulating honeycomb sandwich array and into contact with the dark walls and base of the facially interconnected heat transfer honeycomb sandwich array, and passing the heat transfer fluid through the lateral openings formed in the honeycomb cell walls and thereby flowing such fluid through adjacent honeycomb cells.

Abstract: A flat honeycomb filler plate is provided with recesses to receive laminated, curable inserts. Flat top and bottom sides of the plate are covered by curable skins and a curable ribbon is wrapped around the narrow sides of that plate. The entire assembly is heat cured to obtain an intimate bond.