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IPC 7
F15C-F15C00700

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING


F 15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL


F 15 CFLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES (transducers F15B 5/00; fluid dynamics in general F15D; computers comprising fluid elements G06D, G06G)


Note

 Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "micro-structural devices" and "micro-structural systems". [7]



1/

00Circuit elements having no moving parts

1/

02.Details

1/

04..Means for controlling fluid streams to fluid devices, e.g. by electric signals

1/

06..Constructional details; Selection of specified materials

Note

 Group F15C 1/22 takes precedence over groups F15C 1/08 to F15C 1/20.  [2]

1/

08.Boundary-layer devices, e.g. wall-attachment amplifiers  [2]

1/

10..for digital operation, e.g. to form a logical flip-flop, OR-gate, NOR-gate

1/

12...Multiple arrangements thereof for performing operations of the same kind, e.g. majority gates, identity gates

1/

14.Stream-interaction devices; Momentum-exchange devices, e.g. operating by exchange between two orthogonal fluid jets

1/

16.Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid

1/

18.Turbulence devices, i.e. devices in which a controlling stream will cause a laminar flow to become turbulent

1/

20.Direct-impact devices, i.e. devices in which two collinear opposing power streams are impacted

1/

22.Oscillators  [2]


3/

00Circuit elements having moving parts (valves, construction of valves F16K)

Note

 Group F15C 3/16 takes precedence over groups F15C 3/02 to F15C 3/14.  [2]

3/

02.using spool valves

3/

04.using diaphragms (connection of valves to inflatable elastic bodies B60C 29/00)

3/

06.using balls

3/

08.using reeds

3/

10.using nozzles or jet pipes

3/

12..the nozzle or jet pipe being movable

3/

14..the jet from the nozzle being intercepted by a flap

3/

16.Oscillators  [2]


4/

00Circuit elements characterised by their special functions


5/

00Manufacture of fluid-circuit elements; Manufacture of assemblages of such elements


7/

00Hybrid elements, i.e. circuit elements having features according to groups F15C 1/00 and F15C 3/00  [2]


  
 

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