Static structures (e.g. – buildings) – Machine or implement
Patent
1996-03-07
1998-02-24
Canfield, Robert
Static structures (e.g., buildings)
Machine or implement
527311, 5271701, 5274519, 525881, 527317, 2989735, 29416, 29509, E04C 307, E04C 329
Patent
active
057201447
ABSTRACT:
A metal beam with a thermal break between opposite sides and method of making is disclosed. In a first embodiment a huck rivet extends through aligned holes in a pair of opposed beam sections having a base wall portion and a side wall portion. In a second embodiment a punch/swedge operation forms a rivet in the base wall portion of one beam section that extends through the other base wall portion of the other beam section. In a third embodiment a series of spaced, alternating tabs and recesses are formed in the beam section and the tabs overlap and are riveted at overlapping tabs only to form a gap in the formed beam. In a fourth embodiment oppositely opening hooks are formed in the inner sections of first and second beam sections that interfit and are seamed together to fasten the two beam sections with a continuous seam along the center of a composite beam.
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Flood Patrick D.
Knudson Gary A.
Canfield Robert
Lewis, Jr. Ancel W.
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