Refrigeration – Gas controller or director
Reexamination Certificate
2011-03-29
2011-03-29
Jones, Melvin (Department: 3744)
Refrigeration
Gas controller or director
C062S506000, C165S146000, C165S150000
Reexamination Certificate
active
07913512
ABSTRACT:
A heat exchanger comprises a first tube having a first fin of a first predetermined height extending outward therefrom. A second tube is vertically spaced above the first tube. The second tube has a second fin of a second predetermined height extending outward therefrom. A fan is positioned to force ambient air across the second tube and then across the first tube to heat a fluid flowing therethrough. A method of heating a fluid comprises sequentially flowing the fluid upward through a plurality of vertically spaced rows of substantially horizontal tubes, and forcing air downward over the plurality of tubes to heat the fluid.
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Baudat Ned Phillip
Ross Frank Patrick
Sharp Randy Michael
Gilbreth J. M. (Mark)
Gilbreth Mary A.
Gilbreth Roebuck P.C.
Jones Melvin
Wood Group Advanced Parts Manufacture, AG
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