Method for electromagnetically joining tubes to sheets in a tubular heat transfer system
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United States of America Patent
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Feb 22, 2005
Grant Date -
Nov 27, 2003
app pub date -
May 24, 2002
filing date -
May 24, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for expanding, joining or securing a plurality of tubes by electromagnetic expansion to a plurality of sheets in a tubular heat transfer system. The system and method involve the automatic sensing and positioning of a electromagnetic coil in operative relationship with at least a portion of a tube and an inner wall of a sheet and then energizing the electromagnetic coil to expand the portion of the tube to engage the inner wall of the sheet, thereby securing the tube thereto. A tubular heat transfer system tube expander and method are also shown.
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