F15C FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES (transducers F15B5/00, ; fluid dynamics in general F15D; computer comprising fluid elements G06D, G06G; )
Introduced: September 1968
Description
Covers fluid-based logic and control systems employing hydraulic or pneumatic circuit elements designed to perform computational, control, or decision-making functions. This includes fluidic logic gates, fluid amplifiers, fluid oscillators, and integrated pneumatic/hydraulic control circuits that process signals or regulate system behavior without electronic components. Distinct from general fluid power transmission (F15B) and standard actuators (F15B, F15D), this class focuses on elements where fluid dynamics itself implements the control logic or signal processing function.
Title
Titles differ between systems:
IPC: FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
CPC: FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES (transducers F15B5/00, ; fluid dynamics in general F15D; computer comprising fluid elements G06D, G06G; )
Full Title
Full titles differ between systems:
FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES (transducers F15B5/00, ; fluid dynamics in general F15D; computer comprising fluid elements G06D, G06G; )
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F15C 3/00 Circuit elements having moving parts (valves, construction of valves F16K) +3 CPC IPC+CPC Available in IPC and CPC
- F15C 4/00 Circuit elements characterised by their special functions IPC+CPC Available in IPC and CPC
- F15C 5/00 Manufacture of fluid circuit elements; Manufacture of assemblages of such elements IPC+CPC Available in IPC and CPC
- F15C 7/00 Hybrid elements, i.e. circuit elements having features according to groups F15C1/00 and F15C3/00 since 1974 IPC+CPC Available in IPC and CPC