Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ensio Johannes Miettinen0
Date of Patent
July 10, 2012
0Patent Application Number
123047270
Date Filed
June 20, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The bridge is constructed of one inner tube and an outer tube surrounding the inner tube. The inner and outer tube are joined to each other by connecting pipes welded to the outer surface of the inner tube and to the inner surface of the outer tube so that the inner tube and the outer tube are connected to each other through said connecting pipes whereby a rigid composite structure is formed. The tubes and pipes are preferably laser welded to each other, preferably by a continuous seam.
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