in which the medium condenses and evaporates, e.g. heat pipes

Introduced: January 1985

Title

Titles differ between systems:

IPC: in which the medium condenses and evaporates, e.g. heat-pipes

CPC: in which the medium condenses and evaporates, e.g. heat pipes

Full Title

Full titles differ between systems:

IPC:

Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls > in which the medium condenses and evaporates, e.g. heat-pipes

CPC:

Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls > in which the medium condenses and evaporates, e.g. heat pipes

CPC subdivides this area 7x more granularly than IPC with 11 additional codes.

11 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1995.

Child Classifications

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F28D 15/0208 CPC only CPC only
F28D 15/0233 CPC only CPC only
F28D 15/0241 CPC only CPC only
F28D 15/025 CPC only CPC only
F28D 15/0258 CPC only CPC only
F28D 15/0266 CPC only CPC only
F28D 15/0275 CPC only CPC only
F28D 15/0283 CPC only CPC only
F28D 15/04 with tubes having a capillary structure since 1995 +2 CPC IPC+CPC Available in IPC and CPC
F28D 15/06 Control arrangements therefor since 1995 IPC+CPC Available in IPC and CPC
F28D 2015/0216 2nd only CPC only CPC only
F28D 2015/0225 2nd only CPC only CPC only
F28D 2015/0291 2nd only CPC only CPC only