|  | 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)

|  | F17C |
VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth Fulltext... Hierarchy... Expanded...B65G 5/00; construction or assembling of bulk storage containers employing civil-engineering techniques Fulltext... Hierarchy... Expanded...E04H 7/00; variable-capacity gas-holders Fulltext... Hierarchy... Expanded...F17B; liquefaction or refrigeration machines, plants, or systems Fulltext... Hierarchy... Expanded...F25)

|  | F17C |
Subclass index
VESSELS UNDER PRESSURE; VESSELS NOT UNDER PRESSURE; DETAILS | 1/00; 3/00; 13/00
FILLING; DISCHARGING | 5/00, 6/00; 7/00, 9/00
USE OF GAS-SOLVENTS OR GAS-ABSORBENTS | 11/00

P:30 |  | F17C 1/00 |
Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge (pressurised apparatus for purposes other than storage, see the relevant subclasses such as Fulltext... Hierarchy... Expanded...A62C, Fulltext... Hierarchy... Expanded...B05B; associated with vehicles, see the appropriate subclass of classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B60-B64; pressure vessels in general Fulltext... Hierarchy... Expanded...F16J 12/00)

|  | F17C 1/02 |
· | involving reinforcing arrangements [4]

|  | F17C 1/04 |
· · | Protecting sheatings

|  | F17C 1/06 |
· · · | built-up from wound-on bands or filamentary material, e.g. wires [4]

|  | F17C 1/08 |
· · | Integral reinforcements, e.g. ribs

|  | F17C 1/10 |
· | with provision for protection against corrosion, e.g. due to gaseous acid (inhibiting corrosion of metallic material or incrustation in general Fulltext... Hierarchy... Expanded...C23F) [4]

|  | F17C 1/12 |
· | with provision for thermal insulation (thermal insulation in general Fulltext... Hierarchy... Expanded...F16L 59/00) [4]

|  | F17C 1/14 |
· | constructed of aluminium; constructed of non-magnetic steel

|  | F17C 1/16 |
· | constructed of plastics materials

P:60 |  | F17C 3/00 |
Vessels not under pressure

|  | F17C 3/02 |
· | with provision for thermal insulation (thermal insulation in general Fulltext... Hierarchy... Expanded...F16L 59/00)

|  | F17C 3/04 |
· · | by insulating layers (Fulltext... Hierarchy... Expanded...F17C 3/08 takes precedence)

|  | F17C 3/06 |
· · · | on the inner surface, i.e. in contact with the stored fluid [4]

|  | F17C 3/08 |
· · | by vacuum spaces, e.g. Dewar flask (for household use Fulltext... Hierarchy... Expanded...A47J 41/02)

|  | F17C 3/10 |
· · | by liquid-circulating or vapour-circulating jackets

|  | F17C 3/12 |
· | with provision for protection against corrosion, e.g. due to gaseous acid (protection against corrosion in general Fulltext... Hierarchy... Expanded...C23F)

P:10 |  | F17C 5/00 |
Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases (adding propellants to aerosol containers Fulltext... Hierarchy... Expanded...B65B 31/00)

|  | F17C 5/00 |
Note(s) This group covers: the filling of vessels for storage of compressed or liquefied gases; the filling of pressurised apparatus insofar as it is not covered by a single other subclass, e.g. Fulltext... Hierarchy... Expanded...A62C, Fulltext... Hierarchy... Expanded...B05B.

|  | F17C 5/02 |
· | for filling with liquefied gases

|  | F17C 5/04 |
· · | requiring the use of refrigeration, e.g. filling with helium or hydrogen

|  | F17C 5/06 |
· | for filling with compressed gases

P:40 |  | F17C 6/00 |
Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases [3]

P:20 |  | F17C 7/00 |
Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass

|  | F17C 7/02 |
· | Discharging liquefied gases

|  | F17C 7/04 |
· · | with change of state, e.g. vaporisation [3]

P:50 |  | F17C 9/00 |
Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure

|  | F17C 9/02 |
· | with change of state, e.g. vaporisation

|  | F17C 9/04 |
· · | Recovery of thermal energy [3]

P:0 |  | F17C 11/00 |
Use of gas-solvents or gas-sorbents in vessels

P:70 |  | F17C 13/00 |
Details of vessels or of the filling or discharging of vessels

|  | F17C 13/02 |
· | Special adaptations of indicating, measuring, or monitoring equipment (measuring in general Fulltext... Hierarchy... Expanded...G01)

|  | F17C 13/04 |
· | Arrangement or mounting of valves (valves per se Fulltext... Hierarchy... Expanded...F16K)

|  | F17C 13/06 |
· | Closures, e.g. cap, breakable member (closures for containers in general Fulltext... Hierarchy... Expanded...B65D)

|  | F17C 13/08 |
· | Mounting arrangements for vessels

|  | F17C 13/10 |
· | Arrangements for preventing freezing

|  | F17C 13/12 |
· | Arrangements or mounting of devices for preventing or minimising the effect of explosion (flame traps Fulltext... Hierarchy... Expanded...A62C 4/00)