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IPC 7
 
F16L-F16L00922
  F16L 11/00 - F16L 23/24  

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


F 16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL


F 16 LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL


Notes

(1)In this subclass, the following terms are used with the meanings indicated:

 "pipe" means a conduit of closed cross-section, which is specially adapted to convey fluids, materials or objects;

 "hose" means a pipe, as defined above, which has flexibility as an essential characteristic.  [5]

(2)Attention is drawn to the following places:

 A61M 39/00  Tube connectors, tube couplings or branch units, specially adapted for medical use 

 B05B 1/20  Perforated pipes 

 B63B 35/03  Pipe-laying vessels 

 B64D 39/04  Adaptation of hose constructions for refuelling aircraft during flight 

 B67D 5/36  Arrangements of hoses in apparatus for transferring liquids, e.g. fuel, from bulk to vehicles or portable containers 

 E01D 19/10  Fastening of pipes or cables to bridges 

 E03B  Water supply installations 

 E03D 11/17  Means for connecting water-closet bowls to the flushing pipe 

 E03D 11/18  Siphons for water-closets 

 E03F 3/04  Pipes or fittings specially adapted to sewers 

 E04D 13/08  Down pipes for roof drainage; Clamping means therefor 

 E04F 17/00  Vertical ducts, channels in buildings, e.g. chimneys 

 E21F 1/04  Air ducts for ventilation of mines or tunnels; Connections therefor 

 E21F 17/02  Suspension devices for tubes or the like in mines or tunnels 

 F01N  Gas flow silencers or exhaust apparatus for machines or engines 

 F16N 21/00  Conduits, junctions for lubrication systems 

 F17C 3/02  Thermal insulation of vessels not under pressure for storing liquified or solidified gases, e.g. Dewar flask 

 F22B 37/10  Water tubes of steam boilers 

 F23J 13/04  Joints, connections for chimneys or flues 

 F24H 9/12  Connecting circulation pipes to heaters 

 F28F 9/04  Arrangements for sealing elements into header boxes or end plates of heat-exchangers 

 G21C 15/22  Structural association of coolant tubes with headers or other pipes in nuclear reactors 

 H02G 3/04  Protective tubing or conduits for electric cables 

 H02G 3/30  Installations of electric cables or lines on walls, floors or ceilings [7] 

 H02G 3/36  Installations of electric cables or lines in walls, floors or ceilings [7] 


Subclass Index

LAYING OR RECLAIMING PIPES 

F16L 1/00 

SUPPORTING 

F16L 3/00, F16L 5/00, F16L 7/00 

PIPES 

F16L 9/00, F16L 11/00 

PIPE JOINTS 

Constructional kinds 

non-disconnectable 

F16L 13/00 

screw-threaded 

F16L 15/00 

with separate joints: pressing member; sleeve or socket; flanged joints 

F16L 19/00; F16L 21/00; F16L 23/00 

bends or siphons 

F16L 43/00 

other joints 

F16L 25/00 

Functional kinds 

with self-tightening sealings 

F16L 17/00 

adjustable or allowing movement 

F16L 27/00 

with fluid cut-off means 

F16L 29/00 

of quick-acting type 

F16L 37/00 

for double-walled or multi-channel pipes 

F16L 39/00 

branching pipes, joining pipes to walls 

F16L 41/00 

special for hoses 

F16L 31/00, F16L 33/00, F16L 35/00 

special for pipes: of plastics; of brittle material 

F16L 47/00; F16L 49/00 

PIPING UNITS 

Cleaning features 

F16L 45/00 

Compensation devices 

F16L 51/00 

Heating or cooling 

F16L 53/00 

Accessories 

F16L 55/00 

PROTECTION: AGAINST DAMAGE; CORROSION OR INCRUSTATION; THERMAL INSULATION 

F16L 57/00; F16L 58/00; F16L 59/00 



1/

00Laying or reclaiming pipes; Repairing or joining pipes on or under water (soldering or welding B23K; lifting-gear and load-engaging elements B66; hydraulic installations, soil drainage E02B; excavations or underwater constructions E02D; machines for digging trenches in combination with pipe-assembly E02F; laying sewer pipes E03F 3/06; in earth boreholes or wells E21B; tunnelling E21D; laying electric, or combined optical and electric, cables H02G; making special pipe joints, see the relevant groups for the joints) [2,5,6]

1/

024.Laying or reclaiming pipes on land, e.g. above the ground (F16L 1/12 takes precedence)  [5]

1/

026..in or on a frozen surface  [6]

1/

028..in the ground (F16L 1/026 takes precedence)  [5,6]

1/

032...the pipes being continuous (F16L 1/038 takes precedence)  [5,6]

1/

036...the pipes being composed of sections of short length (F16L 1/038 takes precedence)  [5,6]

1/

038...the pipes being made in situ  [6]

1/

06..Accessories therefor, e.g. anchors  [5]

1/

09...for bringing two tubular members closer to each other  [6]

1/

10...for aligning  [5]

1/

11...for the detection or protection of pipes in the ground  [6]

1/

12.Laying or reclaiming pipes on or under water (buoyant hoses F16L 11/133)  [5]

1/

14..between the surface and the bottom  [5]

1/

15...vertically  [6]

1/

16..on the bottom  [5]

1/

18...the pipes being S- or J-shaped and under tension during laying  [5]

1/

19....the pipes being J-shaped  [6]

1/

20..Accessories therefor, e.g. floats, weights (buoys B63B 22/00)  [5]

1/

225...Stingers  [6]

1/

23...Pipe tensioning apparatus  [6]

1/

235...Apparatus for controlling the pipe during laying  [6]

1/

24...Floats; Weights  [5]

1/

26.Repairing or joining pipes on or under water (buoyant hoses F16L 11/133; joints per se F16L 13/00 to F16L 49/00)  [5]


3/

00Supports 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) [5,7]

3/

01.for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels (hauling- or hoisting-chains with arrangements for holding electric cables, hoses or the like F16G 13/16)  [5]

3/

015..using articulated- or supple-guiding elements (arrangements for cranes of means for transmitting pneumatic, hydraulic or electric power to movable parts or devices B66C 13/12)  [6]

3/

02.partly surrounding the pipes, cables or protective tubing (bands or chains F16L 3/14)

3/

04..and pressing it against a wall or other support

3/

06..with supports for wires

3/

08.substantially surrounding the pipe, cable or protective tubing

3/

10..divided, i.e. with two members engaging the pipe, cable or protective tubing

3/

11...and hanging from a pendant (F16L 3/14 takes precedence)  [5]

3/

12..comprising a member substantially surrounding the pipe, cable or protective tubing

3/

123...and extending along the attachment surface  [5]

3/

127...and extending away from the attachment surface  [5]

3/

13...and engaging it by snap action  [5]

3/

133...and hanging from a pendant (F16L 3/14 takes precedence)  [5]

3/

137...and consisting of a flexible band  [5]

3/

14.Hangers in the form of bands or chains

3/

16.with special provision allowing movement of the pipe (F16L 3/01 takes precedence; supporting pipes or cables inside other pipes or sleeves F16L 7/00)  [5]

3/

18..allowing movement in axial direction

3/

20..allowing movement in transverse direction

3/

202...the transverse movement being converted to a rotational movement (F16L 3/215 takes precedence)  [6]

3/

205...having supporting springs  [5]

3/

21....providing constant supporting spring force  [5]

3/

215...the movement being hydraulically or electrically controlled  [5]

3/

217....hydraulically  [6]

3/

22.specially adapted for supporting a number of parallel pipes at intervals  [6]

3/

223..each support having one transverse base for supporting the pipes (F16L 3/23, F16L 3/237 take precedence)  [6]

3/

227...each pipe being supported by a separate element fastened to the base  [6]

3/

23..for a bundle of pipes or a plurality of pipes placed side by side in contact with each other (F16L 3/237 takes precedence)  [6]

3/

233...by means of a flexible band  [6]

3/

237..for two pipes  [6]

3/

24.with special member for attachment to profiled girders

3/

26.specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts  [6]


5/

00Devices 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)

5/

02.Sealing

Note

 Group F16L 5/14 takes precedence over groups F16L 5/04 to F16L 5/12.  [6]

5/

04..to form a firebreak device  [6]

5/

06..by means of a swivel nut compressing a ring or sleeve  [6]

5/

08..by means of axial screws compressing a ring or sleeve  [6]

5/

10..by using sealing rings or sleeves only  [6]

5/

12..the pipe being cut in two pieces  [6]

5/

14..for double-walled or multi-channel pipes  [6]


7/

00Supporting 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) [5]

7/

02.and sealing the pipes or cables inside the other pipes, cables or sleeves  [6]


Pipes


9/

00Rigid pipes

9/

01.of wood (F16L 9/16 to F16L 9/22 take precedence)  [6]

9/

02.of metal (F16L 9/16 to F16L 9/22 take precedence; finned pipes F28F)

9/

04..Reinforced pipes

9/

06..Corrugated pipes

9/

08.of concrete, cement, or asbestos cement, with or without reinforcement (F16L 9/16 to F16L 9/22 take precedence)

9/

10.of glass or ceramics, e.g. clay, clay tile, porcelain (F16L 9/16 to F16L 9/22 take precedence)

9/

12.of plastics with or without reinforcement (F16L 9/16 to F16L 9/22 take precedence)

9/

127..the walls consisting of a single layer  [5]

9/

128...Reinforced pipes  [6]

9/

133..the walls consisting of two layers  [5]

9/

14.Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups (F16L 9/16 to F16L 9/22 take precedence)

9/

147..comprising only layers of metal and plastics with or without reinforcement  [6]

9/

153..comprising only layers of metal and concrete with or without reinforcement  [6]

9/

16.wound from sheets or strips, with or without reinforcement

9/

17.obtained by bending a sheet longitudinally and connecting the edges  [6]

9/

18.Double-walled pipes; Multi-channel pipes or pipe assemblies (joints therefor F16L 39/00)

9/

19..Multi-channel pipes or pipe assemblies  [4]

9/

21.made of sound-absorbing materials or with sound-absorbing structure [7]

 

9/

22.Pipes composed of a plurality of segments

   F16L 11/00 - F16L 23/24  
 

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