Heat exchange – Casing or tank enclosed conduit assembly – Conduit coiled within casing
Reexamination Certificate
2005-07-26
2005-07-26
Flanigan, Allen J. (Department: 3753)
Heat exchange
Casing or tank enclosed conduit assembly
Conduit coiled within casing
C165S143000
Reexamination Certificate
active
06920919
ABSTRACT:
An improved heat exchanger includes a first tube (10) of generally circular cross section having a relatively large inside diameter and being U-shaped with opposite ends (12,14) adjacent one another. A second tube having a cross section that is relatively small in relation to the cross section of the first tube (10) and helical shaped section (36) intermediate its ends (32,34) is located within the first tube (10) and extends through caps (44) at the ends (12,14) of the first tube (10) to be received in headers (38,40). The first tube (10) impales headers (26,28) and includes apertures (22,24) aligned with the headers (26,28) and in fluid communication with the interiors thereof.
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Hughes Gregory G.
Lazarevic Milisav
Wilson Michael J.
Flanigan Allen J.
Modine Manufacturing Company
Wood Phillips Katz Clark & Mortimer
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