Patent ID: 7905073
Filing Date: 2011-03-15
Classification: E04B,E04C,E04D

Abstract:
1. A structural panel for a building, comprising: a plurality of I-beam stud members, each I-beam stud member being made of metal and having first and second flanges separated by a face which runs an entire length of each I-beam stud member, the first and second flanges having a thickness at least twice a thickness of the face, the first and second flanges being parallel to each other and perpendicular to the face, each I-beam stud member having a plurality of polygonal openings through the face separated only by venturi bridges, the polygonal openings having a first width in a first region of the polygonal opening and a second width in a second region of the polygonal opening, the first width being greater than the second width, each I-beam stud member further having a plurality of circular openings through the face adjacent to the second width of the polygonal openings, at least one of the venturi bridges having a raised area extending above the face, the plurality of polygonal openings blocking thermal conduction between the first and second flanges such that thermal conduction between the first and second flanges occurs only through the venturi bridges for the entire length of each I-beam stud member, the face having an area in the range of 1.33 to 5 times a cumulative area of the plurality of polygonal openings and in the range of 10 to 25 times a cumulative area of the venturi bridges to reduce thermal conduction between the first and second flanges; and an insulating foam material disposed between the plurality of I-beam stud members, the insulating foam material being in contact with the face of the I-beam stud members.