DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water or air traps, air venting F 16)
1
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00
Tubular elements; Assemblies of tubular elements (specially adapted for movement F 28 F 5/00)
1
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02
•
Tubular elements of cross-section which is non-circular (F 28 F 1/08, F 28 F 1/10 take precedence)
1
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04
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•
polygonal, e.g. rectangular
1
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06
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•
crimped or corrugated in cross-section
1
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08
•
Tubular elements crimped or corrugated in longitudinal section
1
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10
•
Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F 28 F 1/06, F 28 F 1/08)
1
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12
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•
the means being only outside the tubular element
1
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14
•
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•
and extending longitudinally (F 28 F 1/38 takes precedence)
1
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16
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•
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the means being integral with the element, e.g. formed by extrusion (F 28 F 1/22 takes precedence)
1
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18
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•
•
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•
the element being built-up from finned sections
1
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20
•
•
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the means being attachable to the element (F 28 F 1/22 takes precedence)
1
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22
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•
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•
the means having portions engaging further tubular elements
1
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24
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and extending transversely (F 28 F 1/38 takes precedence)
1
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26
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•
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•
the means being integral with the element (F 28 F 1/32 takes precedence)
1
/
28
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•
•
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•
the element being built-up from finned sections
1
/
30
•
•
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•
the means being attachable to the element (F 28 F 1/32 takes precedence)
1
/
32
•
•
•
•
the means having portions engaging further tubular elements
1
/
34
•
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•
and extending obliquely (F 28 F 1/38 takes precedence)
1
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36
•
•
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•
the means being helically-wound fins or wire spirals
1
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38
•
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•
and being staggered to form tortuous fluid passages
1
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40
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•
the means being only inside the tubular element
1
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42
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•
the means being both outside and inside the tubular element
1
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44
•
•
•
and being formed of wire mesh
3
/
00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements (specially adapted for movement F 28 F 5/00)
3
/
02
•
Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations (F 28 F 3/08 takes precedence)
3
/
04
•
•
the means being integral with the element
3
/
06
•
•
the means being attachable to the element
3
/
08
•
Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
3
/
10
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•
Arrangement for sealing the margins
3
/
12
•
Elements constructed in the shape of a hollow panel, e.g. with channels
3
/
14
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•
by separating portions of a pair of joined sheets to form channels, e.g. by inflation (manufacture thereof B 23 P)
