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Building panel and utilization thereof

  • US 4,157,638 A
  • Filed: 10/03/1977
  • Issued: 06/12/1979
  • Est. Priority Date: 10/03/1977
  • Status: Expired due to Term
First Claim
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1. A building structure intermediate construction comprisinga pair of exterior substantially quadrate panels, each panel formed of stiff lightweight relatively inexpensive cellulosic material,an interior substantially quadrate panel, formed of insulating material having a generally foam structure, of generally the same width and length as each said exterior panel,means for attaching said interior panel between said exterior panels,said exterior panels having tab portions along a first edge thereof extending past the termination of said interior panel,at least one of said exterior panels having a tab portion along a second edge thereof extending past the termination of said interior panel, said second edge being a generally perpendicular edge of said exterior quadrate panel to said first edge,an interior substantially quadrate panel of stiff lightweight relatively inexpensive cellulosic material,a second substantially quadrate panel formed of insulating material having a generally foam structure, said interior panel of stiff cellulosic material being disposed between said interior foam structured panels, and said interior panels being sandwiched between said exterior panels, andmeans for attaching said interior foam structured panels to said interior stiff panel, and to said exterior panels.

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