Pipes and tubular conduits – With flow regulators and/or baffles – Heat transfer
Reexamination Certificate
2005-01-18
2005-01-18
Hook, James (Department: 3754)
Pipes and tubular conduits
With flow regulators and/or baffles
Heat transfer
C138S144000, C165S180000, C165S184000
Reexamination Certificate
active
06843273
ABSTRACT:
The invention relates to a method for producing gilled metal pipes. According to the method, at least one continuous, gill-forming strip is applied to a rotating pipe body at a tangent and unwound onto the pipe body in an approximately helical line. The side of the strip facing towards the pipe body is connected to the pipe surface by a welding device, using an additional material. The welding process is optimized and the finishing quality increased by molding a web that is bent at right angles to the strip that forms the gills before the strip is wound onto the pipe body. The strip is preferably bent into a U-shape and the web, which runs between the two limbs of the U-shape, is guided flatly onto the pipe body.
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Brooks & Kushman P.C.
Hook James
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