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Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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STEAM OR VAPOUR CONDENSERS (condensation of vapours B01D 5/00; steam engine plants having condensers F01K; liquefaction of gases F25J; details of heat-exchange and heat-transfer arrangements of general application F28F)
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Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
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F28B 1/02
.
using water or other liquid as the cooling medium
F28B 1/04
. .
employing moving walls
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F28B 1/06
.
using air or other gas as the cooling medium
NOTE
-
This group covers also air cooled heat exchangers for which the use as condenser is not explicitly specified, but the configuration is similar to air cooled condensers, e.g. dry cooling towers

F28B 2001/065
. .
{
with secondary condenser, e.g. reflux condenser or dephlegmator
}
F28B 1/08
. .
employing moving walls
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Condensers in which the steam or vapour comes into direct contact with the cooling medium
F28B 3/02
.
by providing a flowing coating of cooling liquid on the condensing surface
F28B 3/04
.
by injecting cooling liquid into the steam or vapour (F28B 3/08 takes precedence)
F28B 3/06
.
by injecting the steam or vapour into the cooling liquid (F28B 3/08 takes precedence)
F28B 3/08
.
with rotatable members
Condensers employing a combination of the methods covered by main groups F28B 1/00 and F28B 3/00; Other condensers
Combinations of two or more condensers, e.g. provision of reserve condenser
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Auxiliary systems, arrangements, or devices
F28B 9/005
.
{
for protection against freezing
}
F28B 9/02
.
for feeding steam or vapour to condensers
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F28B 9/04
.
for feeding, collecting, and storing cooling water or other cooling liquid
F28B 9/06
. .
with provision for re-cooling the cooling water or other cooling liquid
F28B 9/08
.
for collecting and removing condensate
F28B 9/10
.
for extracting, cooling, and removing non-condensable gases
Controlling arrangements with features specially adapted for condensers (control arrangements in general G05)
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013