F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINEERING IN GENERAL
 F17
STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply E03B)
 F17B
GAS-HOLDERS OF VARIABLE CAPACITY (gas holders of fixed capacity F17C; self-acting gas cut-off devices A47J 27/62, G05D; gas mixers B01F, F16K 19/00, G05D 11/00; explosion and fire traps A62C 3/04; gas pressure-wave generators B06B; containers constructed in the manner of buildings 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; gas distribution systems F17D 1/04; detecting leakage F17D 3/04, G01M; supervising or alarm devices F17D 3/04, G08B; control of combustion in burners F23N; gas flow or pressure regulators G05D)
 F17B 1/00
Gas-holders of variable capacity (use of natural or artificial cavities for storage of gases B65G 5/00)
 F17B 1/02
·  Details
 F17B 1/04
·  ·  Sealing devices for sliding parts (in general F16J 15/00)
 F17B 1/06
·  ·  ·  using sealing liquids
 F17B 1/08
·  ·  ·  using resilient materials for packing, e.g. leather
 F17B 1/10
·  ·  Guiding moving parts
 F17B 1/12
·  ·  Gas admission and discharge arrangements
 F17B 1/14
·  ·  Safety devices, e.g. prevention of excess pressure
 F17B 1/16
·  of wet type
 F17B 1/18
·  ·  bell-shaped
 F17B 1/20
·  ·  telescopic
 F17B 1/22
·  ·  ·  spirally-guided
 F17B 1/24
·  of dry type
 F17B 1/26
·  ·  with flexible walls, e.g. bellows