IPC 6 English version F16J !A-F16J 15/56

F16J-F16J01556

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

F 16

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

F 16 J

PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS

Note

Attention is drawn to the following places:

A 47 J 27/08

Pressure cookers

E 04 B 1/68

Sealing building joints

E 05 C 9/00

Multi-point fastening of wings in general

F 01 B `Machines or engines in general or of reciprocating type, e.g. cylinders peculiar to steam engines F 01 B 31/28

F 02 F 1/00

Cylinders for combustion engines

F 02 F 3/00

Pistons for combustion engines

F 04 D 29/08

Sealings of non-positive displacement pumps

F 17 B 1/04

Sealing devices for sliding parts of gas holders of variable capacity

F 28 F 9/04

Arrangements for sealing elements into header boxes or end plates of heat-exchangers.

Pistons; Trunk pistons; Plungers (bellows pistons F 16 J 3/06; piston-rings or seats therefor F 16 J 9/00; rotary pistons, e.g. for "Wankel" type engines, F 01 C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F 02 F; pistons specially adapted for reciprocating-piston liquid engines F 03 C 1/28; for pumps F 04 B; floats F 16 K 33/00)

characterised by the use of particular materials (F 16 J 1/02 takes precedence) [3]

Bearing surfaces

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

with separate expansion members; Espansion members

Constructional features providing for lubrication

with means for guiding fluids (F 16 J 1/08 takes precedence) [3]

Connection to driving members

with piston-rods, i.e. rigid connections

with connecting-rods, i.e. pivotal connections

with gudgeon-pin; Gudgeon-pins

Securing of gudgeon-pins

with rolling contact, other than in ball or roller bearings

with universal joint, e.g. ball-joint

designed to give the piston some rotary movement about its axis

Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B 60 C 29/00; bellows or the like used in instruments G 12 B 1/04; diaphragms for electromechanical transducers H 04 R 7/00)

Diaphragms [2]

Bellows [2]

Bellows pistons [2]

Piston-rods, i.e. rods rigidly connected to the piston (connecting-rods or like links pivoted at both ends F 16 C 7/00)

Piston-rings, seats therefor; Ring sealings of similar construction in general (other sealings between pistons and cylinders F 16 J 3/06, F 16 J 15/16; tools for mounting or removing piston-rings or the like B 25 B; piston sealing arrangements on brake master cylinders B 60 T 11/236) [2,5]

L-section rings

Helical rings

using separate springs expanding the rings; Springs therefor

with expansion obtained by pressure of the medium

Special members for adjusting the rings

Details

Joint-closures

obtained by stacking of rings

with separate bridge-elements

Rings with special cross-section (L-section rings F 16 J 9/02); Oil-scraping rings

Rings for preventing wear of grooves or like seatings

Members preventing rotation of rings in grooves

characterised by the use of particular materials [3]

of non-metals [3]

10/

Engine or like cylinders (pressure vessels in general F 16 J 12/00; cylinders for engines or other apparatus of particular kinds, see the appropriate subclasses, e.g. for combustion engines F 02 F); Features of hollow, e.g. cylindrical, bodies in general [3]

10/

Cylinders designed to receive moving pistons or plungers [3]

10/

Running faces; Liners [3]

12/

Pressure vessels in general (covers therefor F 16 J 13/00; for particular applications, see the relevant subclasses, e.g. B 01 J, F 17 C, G 21 C) [3]

13/

Covers or similar closure members for pressure vessels in general (for engine or like cylinders F 16 J 10/00; sealings F 16 J 15/02; covers for box-like containers B 65 D 43/00; devices for securing or retaining closure members B 65 D 45/00; closures for containers not otherwise provided for B 65 D 51/00; manholes, covers for large containers B 65 D 90/10; gates or closures for large containers B 65 D 90/54; for vessels for containing or storing compressed, liquefied or solidified gases F 17 C 13/06; steam boilers F 22 B)

13/

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

13/

attached with a bridge member

13/

attached only by clamps along the circumference

13/

attached by one or more members actuated to project behind a part or parts of the frame (similar constructions for doors or windows E 05 C 9/00)

13/

attached by means of a divided ring

13/

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

13/

attached exclusively by spring action or elastic action

13/

Pivoted closures (F 16 J 13/22 takes precedence) [3]

13/

pivoted directly on the frame

13/

mounted by mobile fastening on swinging arms

13/

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

13/

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

15/

Sealings (sealing arrangements for vehicle windows, windscreens, non-fixed roofs, doors, or similar devices B 60 J 10/00; sealing or packing elements for container closures B 65 D 53/00; sealing arrangements in rotary-piston machines or engines F 01 C 19/00; sealings in non-positive-displacement machines or engines F 01 D 11/00; arrangements of sealings in combustion engines F 02 F 11/00; sealing arrangements in rotary-piston pumps F 04 C 27/00; sealing lead-in or lead-through insulators H 01 B 17/30) [5]

15/

between relatively-stationary surfaces (F 16 J 15/46, F 16 J 15/48 take precedence)

15/

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

15/

with solid packing compressed between sealing surfaces

15/

with exclusively metal packing

15/

with non-metallic packing

15/

with metal reinforcement or covering

15/

by means of granular or plastic material, or fluid

15/

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

15/

with stuffing-boxes for elastic or plastic packings

15/

Packing materials therefor

15/

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

15/

with radially or tangentially compressed packing

15/

with stuffing-boxes for rigid sealing rings

15/

with sealing rings made of metal

15/

with sealing rings made of carbon

15/

with elastic sealing lip

15/

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

15/

connected by a diaphragm to the other member

15/

sealed by a packing [2]

15/

by means of fluid

15/

kept in sealing position by centrifugal force

15/

kept in sealing position by magnetic force [6]

15/

Free-space packings

15/

447

Labyrinth packings [3]

15/

453

characterised by the use of particular materials [3]

15/

with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings (connection of valves to inflatable elastic bodies B 60 C 29/00; specially adapted for tube connections F 16 L)

15/

influenced by the pressure within the member to be sealed

15/

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/

by means of sealing bellows or diaphragms (connection of valves to inflatable elastic bodies B 60 C 29/00)

15/

using magnetic means [6]

15/

Other sealings for rotating shafts

15/

Other sealings for reciprocating rods