Heat exchange – Side-by-side tubular structures or tube sections – With manifold type header or header plate
Reexamination Certificate
2005-12-06
2005-12-06
Leo, Leonard R. (Department: 3753)
Heat exchange
Side-by-side tubular structures or tube sections
With manifold type header or header plate
C165S175000, C165S178000
Reexamination Certificate
active
06971444
ABSTRACT:
A heat exchanger construction (10) including a plurality of flat heat exchanger tubes (12) and a tube plate (18). The tube plate (18) has an exterior side (20), an interior side (22), and a plurality of tube openings (24) spaced along a longitudinal axis (26). Each of the tubes (12) includes a pair of opposed long sides (29) and a pair of opposed short sides (30). Each of the tubes (12) has an end (34) received in one of the tube openings (24) and extending past the interior side (22). Each of the ends (34) includes a pair of long edges (36) defined by the long sides (28). Each of the tubes (12) has a cut (38) in each of its short sides (30) extending from the end (34) to adjacent the interior side (22) of the tube plate (18). Each of the tubes further includes a bend (40) formed in each of the long sides (28) of the tube (12) adjacent the cut (38) so that the long edges (36) of the tube (12) are adjacent the long edges (36) of the tube (12) on either side of the tube (12).
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Leo Leonard R.
Modine Manufacturing Company
Wood Phillips Katz Clark & Mortimer
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