IPC 7 English version
F17-F17B00126

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING


F 17STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply E03B)


F 17 BGAS-HOLDERS OF VARIABLE CAPACITY (self-acting gas cut-off devices A47J 27/62, G05D; flame traps A62C 4/00; gas mixers B01F, F16K 11/00, G05D 11/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H 7/00; gas compressors F04; valves F16K; damping pulsations in valves or pipes F16K, F16L; pipes F16L; stopping devices for gas mains F16L 55/10; vessels adapted for storing compressed, liquefied, or solidified gases F17C; gas distribution systems F17D 1/04; detecting leakage F17D 5/02, G01M; supervising or alarm devices F17D 5/02, G08B; control of combustion in burners F23N; gas flow or pressure regulators G05D)


1/

00Gas-holders of variable capacity (large containers in general B65D 88/00; storing fluids in natural or artificial cavities or chambers in the earth B65G 5/00)

1/

007.with telescopically movable ring-shaped parts (F17B 1/10 takes precedence; sealing of rings F17B 1/04)  [2]

1/

013.with movables discs (F17B 1/10 takes precedence; sealing of discs F17B 1/04)  [2]

1/

02.Details

1/

04..Sealing devices for sliding parts (in general F16J 15/00)

1/

06...using sealing liquids

1/

08...using resilient materials for packing, e.g. leather

1/

10..Guiding moving parts

1/

12..Gas admission or discharge arrangements

1/

14..Safety devices, e.g. prevention of excess pressure

1/

16.of wet type

1/

18..bell-shaped

1/

20..telescopic

1/

22...spirally-guided

1/

24.of dry type

1/

26..with flexible walls, e.g. bellows (connection of valves to inflatable elastic bodies B60C 29/00)