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Method for fabricating double-skin foam core construction panels

  • US 3,887,410 A
  • Filed: 09/05/1973
  • Issued: 06/03/1975
  • Est. Priority Date: 09/05/1973
  • Status: Expired due to Term
First Claim
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1. A method of fabricating a foam filled construction panel which comprises a liner sheet, a facing sheet, and a foamed-in-place foam core, the two sheets having central webs, first edges and second edges, said method including:

  • aligning the two sheets with the central webs thereof in confronting relation;

    joining the two sheets by means of a resilient strip connection along adjacent first edges thereof;

    diverging the two sheets along second edges thereof remote from said resilient strip connection, thereby to provide an opening therebetween;

    introducing foamable foam forming ingredients through said opening between the second edges of the two sheets and onto at least one of the sheets;

    converging the two sheets along the second edges thereof to position the central webs thereof in confronting relation, while the foam forming ingredients therebetween are actively foaming and increasing in volume; and

    retaining the two sheets in the confronting relation until the foam forming ingredients have completed their foaming and volume expansion, and provide a foamed-in-place core which connects the two sheets.

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