F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
 F01 - 
F04
Subsection index
MACHINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
ENGINEERING IN GENERAL
 F15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
 F15C
FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES (transducers F15B 5/00; fluid dynamics in general F15D; computers comprising fluid elements G06D, G06G)
 F15C

Note(s)

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]

P:30 F15C 1/00
Circuit elements having no moving parts
 F15C 1/02
·  Details
 F15C 1/04
·  ·  Means for controlling fluid streams to fluid devices, e.g. by electric signals
 F15C 1/06
·  ·  Constructional details; Selection of specified materials
 F15C 1/08 - 
F15C 1/20

Note(s)

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

 F15C 1/08
·  Boundary-layer devices, e.g. wall-attachment amplifiers  [2]
 F15C 1/10
·  ·  for digital operation, e.g. to form a logical flip-flop, OR-gate, NOR-gate
 F15C 1/12
·  ·  ·  Multiple arrangements thereof for performing operations of the same kind, e.g. majority gates, identity gates
 F15C 1/14
·  Stream-interaction devices; Momentum-exchange devices, e.g. operating by exchange between two orthogonal fluid jets
 F15C 1/16
·  Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
 F15C 1/18
·  Turbulence devices, i.e. devices in which a controlling stream will cause a laminar flow to become turbulent
 F15C 1/20
·  Direct-impact devices, i.e. devices in which two collinear opposing power streams are impacted
 F15C 1/22
·  Oscillators  [2]
P:20 F15C 3/00
Circuit elements having moving parts (valves, construction of valves F16K)
 F15C 3/02 - 
F15C 3/10

Note(s)

Group F15C 3/16 takes precedence over groups F15C 3/02-F15C 3/10.   [2]

 F15C 3/02
·  using spool valves
 F15C 3/04
·  using diaphragms (connection of valves to inflatable elastic bodies B60C 29/00)
 F15C 3/06
·  using balls
 F15C 3/08
·  using reeds
 F15C 3/10
·  using nozzles or jet pipes
 F15C 3/12
·  ·  the nozzle or jet pipe being movable
 F15C 3/14
·  ·  the jet from the nozzle being intercepted by a flap
 F15C 3/16
·  Oscillators  [2]
P:0 F15C 4/00
Circuit elements characterised by their special functions
P:40 F15C 5/00
Manufacture of fluid-circuit elements; Manufacture of assemblages of such elements
P:10 F15C 7/00
Hybrid elements, i.e. circuit elements having features according to groups F15C 1/00 and F15C 3/00  [2]