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
 F17
STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply E03B)
 F17D
PIPE-LINE SYSTEMS; PIPE-LINES (pumps or compressors F04; fluid dynamics F15D; valves or the like F16K; pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories F16L; steam traps or the like F16T; fluid-pressure electric cables H01B 9/06)
 F17D

Note(s)

In this subclass, the following expression is used with the meaning indicated:

  • "pipe-line systems" means systems described in flow sheets as well as arrangements of co-operating elements, the elements per se being covered by the relevant subclasses.

P:20 F17D 1/00
Pipe-line systems (conveying articles or materials through a pipe-line by means of a fluid carrier B65G 51/00, B65G 53/00; dispensing, delivering or transferring liquids B67D; special devices for transferring liquids from bulk storage containers into vehicles or boats or vice versa, e.g. loading or unloading vehicles or portable containers B67D 5/00; conveying material which has been excavated by a dredger or soil shifter through a pipe-line E02F 7/10; sewer pipe-line systems E03F 3/00; thermal insulation of pipe-lines F16L 59/00; central heating systems F24D)  [2]
 F17D 1/02
·  for gases or vapours
 F17D 1/04
·  ·  for distribution of gas
 F17D 1/05
·  ·  ·  Preventing freezing (by heating F16L 53/00)
 F17D 1/06
·  ·  for steam
 F17D 1/065
·  ·  Arrangements for producing propulsion of gases or vapours  [2]
 F17D 1/07
·  ·  ·  by compression  [2]
 F17D 1/075
·  ·  ·  by mere expansion from an initial pressure level, e.g. by arrangement of a flow-control valve  [2]
 F17D 1/08
·  for liquids or viscous products (water-main or service pipe systems E03B 7/04; domestic hot-water supply systems F24D 17/00)  [2]
 F17D 1/12
·  ·  Conveying liquids or viscous products by pressure of another fluid  [2]
 F17D 1/13
·  ·  Conveying liquids or viscous products by gravity  [2]
 F17D 1/14
·  ·  Conveying liquids or viscous products by pumping  [2]
 F17D 1/16
·  ·  Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity  [2]
 F17D 1/17
·  ·  ·  by mixing with another liquid  [2]
 F17D 1/18
·  ·  ·  by heating  [2]
 F17D 1/20
·  Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves (fluid dynamics F15D; damping pulsations in fluids in pipes in general F16L 55/04)  [2]
P:10 F17D 3/00
Arrangements for supervising or controlling working operations
 F17D 3/01
·  for controlling, signalling, or supervising the conveyance of a product  [2]
 F17D 3/03
·  for controlling, signalling, or supervising the conveyance of several different products following one another in the same conduit, e.g. for switching from one receiving tank to another  [2]
 F17D 3/05
·  ·  the different products not being separated (separation of contaminants by distillation B01D 3/00)  [2]
 F17D 3/08
·  ·  the different products being separated by "go-devils", e.g. spheres (cleaning devices moved along the inside of pipe-lines by a fluid B08B 9/053)  [2]
 F17D 3/10
·  for taking out the product in the line (investigating or analysing materials by determinating their chemical or physical properties G01N)  [2]
 F17D 3/12
·  for injecting a composition into the line  [2]
 F17D 3/14
·  for eliminating water (separation of liquids B01D, e.g. B01D 17/00; separation of gases or vapours B01D 53/00)  [2]
 F17D 3/16
·  for eliminating particles in suspension (from liquids by sedimentation B01D 21/00; separation by filtration or otherwise B01D 24/00-B01D 51/00; centrifugal apparatus B04)  [2]
 F17D 3/18
·  for measuring the quantity of conveyed product (measuring volume or volume flow, in general G01F)  [2]
P:0 F17D 5/00
Protection or supervision of installations (arrangements for protecting foundations E02D 31/00; protecting pipes from damage or internal or external wear F16L 57/00, against corrosion or scale F16L 58/00; investigation of the fluid-tightness of structures G01M 3/00)  [2]
 F17D 5/02
·  Preventing, monitoring, or locating loss  [2]
 F17D 5/04
·  ·  by means of a signalling fluid enclosed in a double wall  [2]
 F17D 5/06
·  ·  using electric or acoustic means  [2]
 F17D 5/08
·  Protection of installations or persons from the effects of high voltage induced in the pipe-line (emergency protective circuit arrangements H02H)  [2]