G05D 11/00 Control of flow ratio (control of chemical or physico-chemical variables, e.g. pH-value, G05D21/00; control of humidity G05D22/00; control of temperature by varying the mixing ratio of two fluids having different temperatures G05D23/13; control of viscosity G05D24/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Control of flow ratio
CPC: Control of flow ratio (control of chemical or physico-chemical variables, e.g. pH-value, G05D21/00; control of humidity G05D22/00; control of temperature by varying the mixing ratio of two fluids having different temperatures G05D23/13; control of viscosity G05D24/00)
Full Title
Full titles differ between systems:
Control of flow ratio
Control of flow ratio (control of chemical or physico-chemical variables, e.g. pH-value, G05D21/00; control of humidity G05D22/00; control of temperature by varying the mixing ratio of two fluids having different temperatures G05D23/13; control of viscosity G05D24/00)
CPC subdivides this area 4x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open
- G05D 11/02 Controlling ratio of two or more flows of fluid or fluent material IPC+CPC Available in IPC and CPC
- G05D 11/16 Controlling mixing ratio of fluids having different temperatures, e.g. by sensing the temperature of a mixture of fluids having different viscosities IPC+CPC Available in IPC and CPC