|  | 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 fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

ENGINEERING IN GENERAL

|  | F17 |
STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply Fulltext... Hierarchy... Expanded...E03B)

|  | F17D |
PIPE-LINE SYSTEMS; PIPE-LINES (pumps or compressors Fulltext... Hierarchy... Expanded...F04; fluid dynamics Fulltext... Hierarchy... Expanded...F15D; valves or the like Fulltext... Hierarchy... Expanded...F16K; pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories Fulltext... Hierarchy... Expanded...F16L; steam traps or the like Fulltext... Hierarchy... Expanded...F16T; fluid-pressure electric cables Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B65G 51/00, Fulltext... Hierarchy... Expanded...B65G 53/00; dispensing, delivering or transferring liquids Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B67D 5/00; conveying material which has been excavated by a dredger or soil shifter through a pipe-line Fulltext... Hierarchy... Expanded...E02F 7/10; sewer pipe-line systems Fulltext... Hierarchy... Expanded...E03F 3/00; thermal insulation of pipe-lines Fulltext... Hierarchy... Expanded...F16L 59/00; central heating systems Fulltext... Hierarchy... Expanded...F24D) [2]

|  | F17D 1/02 |
· | for gases or vapours

|  | F17D 1/04 |
· · | for distribution of gas

|  | F17D 1/05 |
· · · | Preventing freezing (by heating Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...E03B 7/04; domestic hot-water supply systems Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...F15D; damping pulsations in fluids in pipes in general Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...G01N) [2]

|  | F17D 3/12 |
· | for injecting a composition into the line [2]

|  | F17D 3/14 |
· | for eliminating water (separation of liquids Fulltext... Hierarchy... Expanded...B01D, e.g. Fulltext... Hierarchy... Expanded...B01D 17/00; separation of gases or vapours Fulltext... Hierarchy... Expanded...B01D 53/00) [2]

|  | F17D 3/16 |
· | for eliminating particles in suspension (from liquids by sedimentation Fulltext... Hierarchy... Expanded...B01D 21/00; separation by filtration or otherwise Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B01D 24/00-B01D 51/00; centrifugal apparatus Fulltext... Hierarchy... Expanded...B04) [2]

|  | F17D 3/18 |
· | for measuring the quantity of conveyed product (measuring volume or volume flow, in general Fulltext... Hierarchy... Expanded...G01F) [2]

P:0 |  | F17D 5/00 |
Protection or supervision of installations (arrangements for protecting foundations Fulltext... Hierarchy... Expanded...E02D 31/00; protecting pipes from damage or internal or external wear Fulltext... Hierarchy... Expanded...F16L 57/00, against corrosion or scale Fulltext... Hierarchy... Expanded...F16L 58/00; investigation of the fluid-tightness of structures Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H02H) [2]