Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jens Blütling0
Rainer Käsinger0
Rob J. Sagasser0
Date of Patent
August 14, 2007
Patent Application Number
10772067
Date Filed
February 4, 2004
Patent Primary Examiner
Patent abstract
An insert adapted to connect to opposite walls in a heat exchanger tube, including a corrugated sheet having alternating wave crests and wave troughs connected by wave flanks having openings therein, wherein at least some of the wave crests have a length different than the length of the wave troughs, and/or adjacent sections have different wavelength waves. Such inserts may be produced by transporting material sheets through a press, where the sheet feed rate and/or the press stroke speed may be selectively varied.
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