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IPC entry: F16L 9/22 1-dot subgroup [Version 2024.01 (current), Language EN - English]

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Symbol		Title
A		HUMAN NECESSITIES
B		PERFORMING OPERATIONS; TRANSPORTING
C		CHEMISTRY; METALLURGY
D		TEXTILES; PAPER
E		FIXED CONSTRUCTIONS
F		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01		ENGINES OR PUMPS
F01		MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F02		COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F03		MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F04		POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F15		ENGINEERING IN GENERAL
F15		FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
F16		ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16B		DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
F16C		SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS [5]
F16D		COUPLINGS FOR TRANSMITTING ROTATION (gearing for conveying rotation F16H, e.g. fluid gearing F16H 39/00-F16H 47/00); CLUTCHES (dynamo-electric clutches H02K 49/00; clutches using electrostatic attraction H02N 13/00); BRAKES (electrodynamic brake systems for vehicles in general B60L 7/00; dynamo-electric brakes H02K 49/00) [2]
F16F		SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
F16G		BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
F16H		GEARING
F16J		PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
F16K		VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16L		PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L 1/00		Laying or reclaiming pipes; Repairing or joining pipes on or under water [1, 2, 5, 6, 2006.01]
F16L 3/00		Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets (anchors for holding pipes on or under the ground F16L 1/06; noise absorbers in the form of specially adapted hangers or supports F16L 55/035; arrangements specially adapted for supporting insulated bodies F16L 59/12) [1, 5, 7, 2006.01]
F16L 5/00		Devices for use where pipes, cables or protective tubing pass through walls or partitions (installations of electric cables or lines through walls, floors or ceilings H02G 3/22) [1, 2006.01]
F16L 7/00		Supporting pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic (sleeves for supporting pipes, cables or protective tubing, between relatively movable points F16L 3/01) [1, 5, 2006.01]
F16L 9/00		Pipes
F16L 9/00		Rigid pipes [1, 2006.01]
F16L 9/01		. of wood (F16L 9/16-F16L 9/22 take precedence) [6, 2006.01]
F16L 9/02		. of metal (F16L 9/16-F16L 9/22 take precedence) [1, 2006.01]
F16L 9/04		. . Reinforced pipes [1, 2006.01]
F16L 9/06		. . Corrugated pipes [1, 2006.01]
F16L 9/08		. of concrete, cement, or asbestos cement, with or without reinforcement (F16L 9/16-F16L 9/22 take precedence) [1, 2006.01]
F16L 9/10		. of glass or ceramics, e.g. clay, clay tile, porcelain (F16L 9/16-F16L 9/22 take precedence) [1, 2006.01]
F16L 9/12		. of plastics with or without reinforcement (F16L 9/16-F16L 9/22 take precedence) [1, 2006.01]
F16L 9/127		. . the walls consisting of a single layer [5, 2006.01]
F16L 9/128		. . . Reinforced pipes [6, 2006.01]
F16L 9/133		. . the walls consisting of two layers [5, 2006.01]
F16L 9/14		. Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L 9/16-F16L 9/22 take precedence) [1, 2006.01]
F16L 9/147		. . comprising only layers of metal and plastics with or without reinforcement [6, 2006.01]
F16L 9/153		. . comprising only layers of metal and concrete with or without reinforcement [6, 2006.01]
F16L 9/16		. wound from sheets or strips, with or without reinforcement [1, 2006.01]
F16L 9/17		. obtained by bending a sheet longitudinally and connecting the edges [6, 2006.01]
F16L 9/18		. Double-walled pipes; Multi-channel pipes or pipe assemblies [1, 2006.01]
F16L 9/19		. . Multi-channel pipes or pipe assemblies [4, 2006.01]
F16L 9/21		. made of sound-absorbing materials or with sound-absorbing structure [7, 2006.01]
F16L 9/22		. Pipes composed of a plurality of segments [1, 2006.01]
F16L 11/00		Hoses, i.e. flexible pipes [1, 5, 2006.01]
F16L 13/00		Pipe joints; Hose nipples [2]
F16L 13/00		Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints (joints for rigid pipes of plastics F16L 47/00) [1, 2006.01]
F16L 15/00		Screw-threaded joints; Forms of screw-threads for such joints [1, 2006.01]
F16L 17/00		Joints with packing adapted to sealing by fluid pressure [1, 2006.01]
F16L 19/00		Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts (F16L 17/00 takes precedence; if using bolts or equivalent connecting means F16L 23/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L 47/00) [1, 2006.01]
F16L 21/00		Joints with sleeve or socket (F16L 13/00, F16L 17/00, F16L 19/00 take precedence; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L 47/00; specially adapted for pipes of brittle material F16L 49/00) [1, 2006.01]
F16L 23/00		Flanged joints (F16L 13/00, F16L 17/00, F16L 19/00 take precedence; adjustable joints F16L 27/00; for hoses F16L 33/00; couplings of the quick-acting type F16L 37/00; for double-walled or multi-channel pipes, or pipe assemblies F16L 39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L 47/00; specially adapted for pipes of brittle material F16L 49/00) [1, 2006.01]
F16L 25/00		Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L 13/00-F16L 23/00 (adjustable or allowing movement F16L 27/00; with fluid cut-off means F16L 29/00; quick-acting F16L 37/00; for double-walled or multi-channel pipes F16L 39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L 47/00; specially adapted for pipes of brittle material F16L 49/00) [1, 2006.01]
F16L 27/00		Adjustable joints; Joints allowing movement (of the quick-acting type F16L 37/50; for double-walled or multi-channel pipes or pipe assemblies F16L 39/04) [1, 5, 2006.01]
F16L 29/00		Joints with fluid cut-off means (quick-acting joints with cut-off means F16L 37/28) [1, 2006.01]
F16L 31/00		Arrangements for connecting hoses to one another or to flexible sleeves (F16L 33/00 takes precedence) [1, 2006.01]
F16L 33/00		Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses (connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L 47/00) [1, 2006.01]
F16L 35/00		Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices [1, 2006.01]
F16L 37/00		Couplings of the quick-acting type (radially-binding sleeves F16L 17/04, F16L 21/06; connecting hoses to rigid members F16L 33/00) [1, 2006.01]
F16L 39/00		Joints or fittings for double-walled or multi-channel pipes or pipe assemblies [1, 2006.01]
F16L 41/00		Branching pipes; Joining pipes to walls (F16L 39/00 takes precedence) [1, 2006.01]
F16L 43/00		Bends; Siphons (with cleaning apertures F16L 45/00) [1, 2006.01]
F16L 45/00		Pipe units with cleaning aperture and closure therefor [1, 2006.01]
F16L 47/00		Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics [1, 2006.01]
F16L 49/00		Connecting arrangements, e.g. joints, specially adapted for pipes of brittle material, e.g. glass, earthenware [1, 2006.01]
F16L 51/00
F16L 51/00		Expansion-compensation arrangements for pipe-lines (telescopic pipes F16L 27/12) [1, 2006.01]
F16L 53/00		Heating of pipes or pipe systems; Cooling of pipes or pipe systems [1, 2006.01, 2018.01]
F16L 55/00		Devices or appurtenances for use in, or in connection with, pipes or pipe systems (F16L 1/00-F16L 53/00, F16L 57/00, F16L 59/00 take precedence; repairing or joining pipes on or under water F16L 1/26; cleaning of pipes B08B 9/02, e.g. removal of blockages B08B 9/027; devices for preventing bursting of water pipes by freezing E03B 7/10) [1, 2006.01]
F16L 57/00		Protection of pipes or objects of similar shape against external or internal damage or wear (supporting of pipes inside other pipes or sleeves F16L 7/00; used in connection with end fittings of hoses F16L 35/00; protection of pipes or pipe fittings against corrosion or incrustation F16L 58/00; protection thereof during transport B65D 59/00) [1, 2006.01]
F16L 58/00		Protection of pipes or pipe fittings against corrosion or incrustation (compound tubes F16L 9/14) [1, 2006.01]
F16L 59/00		Thermal insulation in general [1, 2006.01]
F16L 101/00		Indexing scheme associated with groups F16L 55/26-F16L 55/48, relating to uses and applications of pigs or moles. [6]
F16L 101/00		Uses or applications of pigs or moles [6, 2006.01]
F16M		FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
F16N		LUBRICATING
F16P		SAFETY DEVICES IN GENERAL
F16S		CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
F16T		STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
F17		STORING OR DISTRIBUTING GASES OR LIQUIDS
F21		LIGHTING; HEATING
F21		LIGHTING
F22		STEAM GENERATION
F23		COMBUSTION APPARATUS; COMBUSTION PROCESSES
F24		HEATING; RANGES; VENTILATING
F25		REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
F26		DRYING
F27		FURNACES; KILNS, OVENS OR RETORTS [4]
F28		HEAT EXCHANGE IN GENERAL
F41		WEAPONS; BLASTING
F41		WEAPONS
F42		AMMUNITION; BLASTING
F99		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
G		PHYSICS
H		ELECTRICITY

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