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IPC 7
F16J-F16J01556

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 JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS


Note

 Attention is drawn to the following places:

 A47J 27/08  Pressure cookers 

 E04B 1/68  Sealing building joints 

 E05C 9/00  Multi-point fastening of wings in general 

 F01B  Machines or engines in general or of reciprocating type, e.g. cylinders peculiar to steam engines F01B 31/28 

 F02F 1/00  Cylinders for combustion engines 

 F02F 3/00  Pistons for combustion engines 

 F04D 29/08  Sealings of non-positive displacement pumps 

 F17B 1/04  Sealing devices for sliding parts of gas holders of variable capacity 

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


Subclass Index

PISTONS, TRUNK PISTONS, OR PLUNGERS; PISTON-RODS 

F16J 1/00; F16J 7/00 

DIAPHRAGMS, BELLOWS, BELLOWS PISTONS; PISTON-RINGS 

F16J 3/00; F16J 9/00 

CYLINDERS, HOLLOW BODIES 

F16J 10/00 

PRESSURE VESSELS; COVERS 

F16J 12/00; F16J 13/00 

SEALINGS 

F16J 15/00 



1/

00Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00)

1/

01.characterised by the use of particular materials (F16J 1/02 takes precedence)  [3]

1/

02.Bearing surfaces

1/

04.Resilient guiding parts, e.g. skirts, particularly for trunk pistons

1/

06..with separate expansion members; Espansion members

1/

08.Constructional features providing for lubrication

1/

09.with means for guiding fluids (F16J 1/08 takes precedence)  [3]

1/

10.Connection to driving members

1/

12..with piston-rods, i.e. rigid connections

1/

14..with connecting-rods, i.e. pivotal connections

1/

16...with gudgeon-pin; Gudgeon-pins

1/

18....Securing of gudgeon-pins

1/

20...with rolling contact, other than in ball or roller bearings

1/

22...with universal joint, e.g. ball-joint

1/

24..designed to give the piston some rotary movement about its axis


3/

00Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers H04R 7/00)

3/

02.Diaphragms  [2]

3/

04.Bellows  [2]

3/

06.Bellows pistons  [2]


7/

00Piston-rods, i.e. rods rigidly connected to the piston (connecting-rods or like links pivoted at both ends F16C 7/00)


9/

00Piston-rings, seats therefor; Ring sealings of similar construction in general (other sealings between pistons and cylinders F16J 3/06, F16J 15/16; tools for mounting or removing piston-rings or the like B25B; piston sealing arrangements on brake master cylinders B60T 11/236) [2,5]

9/

02.L-section rings

9/

04.Helical rings

9/

06.using separate springs expanding the rings; Springs therefor

9/

08.with expansion obtained by pressure of the medium

9/

10.Special members for adjusting the rings

9/

12.Details

9/

14..Joint-closures

9/

16...obtained by stacking of rings

9/

18...with separate bridge-elements

9/

20..Rings with special cross-section (L-section rings F16J 9/02); Oil-scraping rings

9/

22..Rings for preventing wear of grooves or like seatings

9/

24..Members preventing rotation of rings in grooves

9/

26.characterised by the use of particular materials  [3]

9/

28..of non-metals  [3]


10/

00Engine or like cylinders (pressure vessels in general F16J 12/00; cylinders for engines or other apparatus of particular kinds, see the appropriate subclasses, e.g. for combustion engines F02F); Features of hollow, e.g. cylindrical, bodies in general  [3]

10/

02.Cylinders designed to receive moving pistons or plungers  [3]

10/

04..Running faces; Liners  [3]


12/

00Pressure vessels in general (covers therefor F16J 13/00; for particular applications, see the relevant subclasses, e.g. B01J, F17C, G21C) [3]


13/

00Covers or similar closure members for pressure vessels in general (for engine or like cylinders F16J 10/00; sealings F16J 15/02; covers for box-like containers B65D 43/00; devices for securing or retaining closure members B65D 45/00; closures for containers not otherwise provided for B65D 51/00; manholes, covers for large containers B65D 90/10; gates or closures for large containers B65D 90/54; for vessels for containing or storing compressed, liquefied or solidified gases F17C 13/06; steam boilers F22B)

13/

02.Detachable closure members; Means for tightening closures (F16J 13/16, F16J 13/22 take precedence)  [3]

13/

04..attached with a bridge member

13/

06..attached only by clamps along the circumference

13/

08..attached by one or more members actuated to project behind a part or parts of the frame (similar constructions for doors or windows E05C 9/00)

13/

10..attached by means of a divided ring

13/

12..attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like

13/

14..attached exclusively by spring action or elastic action

13/

16.Pivoted closures (F16J 13/22 takes precedence)  [3]

13/

18..pivoted directly on the frame

13/

20..mounted by mobile fastening on swinging arms

13/

22.with movement parallel to the plane of the opening  [3]

13/

24.with safety devices, e.g. to prevent opening prior to pressure release  [3]


15/

00Sealings (sealing arrangements for vehicle windows, windscreens, non-fixed roofs, doors, or similar devices B60J 10/00; sealing or packing elements for container closures B65D 53/00; sealing arrangements in rotary-piston machines or engines F01C 19/00; sealings in non-positive-displacement machines or engines F01D 11/00; arrangements of sealings in combustion engines F02F 11/00; sealing arrangements in rotary-piston pumps F04C 27/00; sealing lead-in or lead-through insulators H01B 17/30) [5]

15/

02.between relatively-stationary surfaces (F16J 15/46, F16J 15/48 take precedence)

15/

04..without packing between the surfaces, e.g. with ground surfaces, with cutting edge

15/

06..with solid packing compressed between sealing surfaces

15/

08...with exclusively metal packing

15/

10...with non-metallic packing

15/

12....with metal reinforcement or covering

15/

14..by means of granular or plastic material, or fluid

15/

16.between relatively-moving surfaces (F16J 15/50, F16J 15/52 take precedence; bellows pistons F16J 3/06; piston-rings or ring sealings of similar construction in general F16J 9/00; spindle sealings for valves F16K 41/00)  [2]

15/

18..with stuffing-boxes for elastic or plastic packings

15/

20...Packing materials therefor

15/

22....shaped as strands, ropes, threads, ribbons, or the like

15/

24...with radially or tangentially compressed packing

15/

26..with stuffing-boxes for rigid sealing rings

15/

28...with sealing rings made of metal

15/

30...with sealing rings made of carbon

15/

32..with elastic sealing lip

15/

34..with slip-ring pressed against a more or less radial face on one member

15/

36...connected by a diaphragm to the other member

15/

38...sealed by a packing  [2]

15/

40..by means of fluid

15/

42...kept in sealing position by centrifugal force

15/

43...kept in sealing position by magnetic force  [6]

15/

44.Free-space packings

15/

447..Labyrinth packings  [3]

15/

453...characterised by the use of particular materials  [3]

15/

46.with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings (connection of valves to inflatable elastic bodies B60C 29/00; specially adapted for tube connections F16L)

15/

48..influenced by the pressure within the member to be sealed

15/

50.between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall

15/

52..by means of sealing bellows or diaphragms (connection of valves to inflatable elastic bodies B60C 29/00)

15/

53.using magnetic means  [6]

15/

54.Other sealings for rotating shafts

15/

56.Other sealings for reciprocating rods


  
 

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