F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
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.

 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; 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]
 F17D 3/00
Arrangements for supervising or controlling working operations (supervising or controlling per se, see the relevant classes of section G)
 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 inside a pipe-line by fluid pressure B08B 9/04)  [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 23/00-B01D 51/00; centrifugal apparatus per se B04)  [2]
 F17D 3/18
·  for measuring the quantity of conveyed product (measuring volume or volume flow, in general G01F)  [2]
 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 per se H02H)  [2]