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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION (safety devices in general F16P; fluid heaters having heat generating means F24H; with an intermediate heat-transfer medium coming into direct contact with heat-exchange media F28D 15/00 to F28D 19/00; details of heat-exchange apparatus of general application F28F)
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Direct-contact trickle coolers, e.g. cooling towers (building construction E04H 5/12; enclosed spaces cooled by trickle F25; components parts of trickle coolers F28F 25/00;
{
indirect-contact cooling towers F28B 1/06
}
)
F28C 1/003
.
{
comprising outlet ducts for exhaust gases
}
F28C 2001/006
.
{
Systems comprising cooling towers, e.g. for recooling a cooling medium (for condensers F28B 9/06)
}
F28C 1/02
.
with counter-current only
F28C 1/04
.
with cross-current only
F28C 1/06
.
with both counter-current and cross-current
F28C 1/08
.
Arrangements for recovering heat from exhaust steam
F28C 1/10
.
Arrangements for suppressing noise
F28C 1/12
.
Arrangements for preventing clogging by frost
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F28C 1/14
.
comprising also a non-direct contact heat exchange
F28C 2001/145
. .
{
with arrangements of adjacent wet and dry passages
}
F28C 1/16
.
Arrangements for preventing condensation, precipitation or mist formation, outside the cooler (F28C 1/14 takes precedence)
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Other direct-contact heat-exchange apparatus
F28C 3/005
.
{
one heat-exchange medium being a solid (F28C 3/10 takes precedence)
}
F28C 3/02
.
the heat-exchange media both being gases or vapours
F28C 3/04
.
the heat-exchange media both being liquids
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F28C 3/06
.
the heat-exchange media being a liquid and a gas or vapour (temperators for cooling steam F22)
F28C 3/08
. .
with change of state, e.g. absorption, evaporation, condensation (generating steam under pressure F22)
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F28C 3/10
.
one heat-exchange medium at least being a fluent solid, e.g. a particulate material
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F28C 3/12
. .
the heat-exchange medium being a particulate material and a gas, vapour, or liquid
F28C 3/14
. . .
the particulate material moving by gravity, e.g. down a tube
F28C 3/16
. . .
the particulate material forming a bed, e.g. fluidised, on vibratory sieves
F28C 3/18
. . .
the particulate material being contained in rotating drums
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Last Modified: 10/10/2013