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Prefabricated building panels

  • US 4,637,187 A
  • Filed: 08/02/1985
  • Issued: 01/20/1987
  • Est. Priority Date: 08/02/1985
  • Status: Expired due to Term
First Claim
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1. A prefabricated building panel comprisinga plurality of longitudinally extending transversely spaced trusses,each truss comprising opposed bases and an intervening portion extending between the bases,a first sheet and a second sheet fastened to one of said bases,insulating material between said sheets,said first sheet comprising a plurality of transversely spaced grooves defined by transversely spaced narrow ribs extending longitudinally and formed by closely spaced portions of the first sheet bent inwardly,said grooves having a base wall and a side wall width substantially equal to the width of one of the bases of the truss and receiving one of the bases,the base of each groove lying in the plane of the sheet and the width of said ribs being substantially less than the width of said grooves such that the overall appearance of the exterior of said first sheet appears to be planar and substantially uninterrupted except for narrow lines defined by the space between the closely spaced portions of the ribs and such that the space between adjacent bases is maximized for receiving insulating material.

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