Laminated non-combustible board for forming ductwork and headers
OwnerDarryl L. Snyderinventor
Life of this patent
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Abstract
The present invention relates to a laminated structural sheet material or board having a planar configuration and comprising a hollow core portion and metallic foil exterior surfaces especially useful for forming ductwork, headers and deflectors in heating and cooling systems. The sheet material is substantially moistureproof, smokeproof and fireproof for forming such ductwork, headers and deflectors in combination with ceiling and/or floor joists and flooring materials, the material or board being readily bendable and having scored edges for attachment to wooden ceiling and/or floor joists in planar or angled relation.
Claims27
A structural laminated panning material for forming heating and cooling ducts between spaced-apart framing members of a structure, said material comprising a core portion of combined non-metallic paper corrugating medium and paper linerboard members fully co-extensive with said paper corrugating medium and thin metallic foil facing members adhesively attached to and fully co-extensive with said paper linerboard members, said panning material having an overall width greater than the spacing of said framing members, and a pair of parallel score lines formed adjacent at least two juxtaposed terminating edges of said panning material, said pair of score lines extending perpendicular to the corrugations of said paper corrugating medium for permanent attachment to said framing members in either planar or angled relationship.
In the construction of structural buildings having a plurality of hollow heating and cooling ducts formed on at least two sides by spaced-apart framing members, the improvement of a structural laminated panning material which is combinedly moistureproof, smokeproof and fireproof for forming ductwork and headers, said panning material comprising a core portion formed from a paper corrugating medium and paper linerboard members covering both faces of said corrugating medium and thin metallic foil facing members adhesively exteriorly attached to both said linerboard members, and a pair of parallel score lines formed adjacent at least two juxtaposed terminating edges of said panning material perpendicular to the direction of corrugations of said corrugating medium, said panning material being substantially planar, and rigid for permanent attachment to said spaced-apart framing members in either planar or right-angled relationship.
A plyable non-combustible planar laminated structural panning board for forming heating and cooling ducts and headers between spaced-apart parallel framing members in a structure, said panning board comprising a core portion of combined corrugated paper medium and a pair of paper linerboard members fully covering both faces of said corrugated paper medium and a pair of thin metallic foil facing members adhesively attached to both said linerboard members, said panning board having an overall width greater than the spacing between said framing members, and a pair of parallel score lines formed perpendicular to the direction of corrugations of said corrugating paper medium and adjacent at least two juxtaposed terminating edge portions of said panning board for attachment of said scored terminating edge portions to said spaced-apart framing members in either planar or right-angled relationship.
Dependencies are inferred from the claim text.