|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

ENGINEERING IN GENERAL

|  | F16 |
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

|  | F16J |
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS

|  | F16J |
Note(s) Attention is drawn to the following places:
Fulltext... Hierarchy... Expanded...A47J 27/08 | Pressure cookers |
Fulltext... Hierarchy... Expanded...E04B 1/68 | Sealing building joints |
Fulltext... Hierarchy... Expanded...E05C 9/00 | Multi-point fastening of wings in general |
Fulltext... Hierarchy... Expanded...F01B | Machines or engines in general or of reciprocating type, e.g. cylinders peculiar to steam engines Fulltext... Hierarchy... Expanded...F01B 31/28 |
Fulltext... Hierarchy... Expanded...F02F 1/00 | Cylinders for combustion engines |
Fulltext... Hierarchy... Expanded...F02F 3/00 | Pistons for combustion engines |
Fulltext... Hierarchy... Expanded...F04D 29/08 | Sealings of non-positive displacement pumps |
Fulltext... Hierarchy... Expanded...F17B 1/04 | Sealing devices for sliding parts of gas holders of variable capacity |
Fulltext... Hierarchy... Expanded...F28F 9/04 | Arrangements for sealing elements into header boxes or end plates of heat-exchangers. |

|  | F16J |
Subclass index
PISTONS, TRUNK PISTONS, OR PLUNGERS; PISTON-RODS | 1/00; 7/00
DIAPHRAGMS, BELLOWS, BELLOWS PISTONS; PISTON-RINGS | 3/00; 9/00
CYLINDERS, HOLLOW BODIES | 10/00
PRESSURE VESSELS; COVERS | 12/00; 13/00
SEALINGS | 15/00

P:10 |  | F16J 1/00 |
Pistons; Trunk pistons; Plungers (bellows pistons Fulltext... Hierarchy... Expanded...F16J 3/06; piston-rings or seats therefor Fulltext... Hierarchy... Expanded...F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, Fulltext... Hierarchy... Expanded...F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, Fulltext... Hierarchy... Expanded...F02F; pistons specially adapted for reciprocating-piston liquid engines Fulltext... Hierarchy... Expanded...F03C 1/28; for pumps Fulltext... Hierarchy... Expanded...F04B; floats Fulltext... Hierarchy... Expanded...F16K 33/00)

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

|  | F16J 1/02 |
· | Bearing surfaces

|  | F16J 1/04 |
· | Resilient guiding parts, e.g. skirts, particularly for trunk pistons

|  | F16J 1/06 |
· · | with separate expansion members; Espansion members

|  | F16J 1/08 |
· | Constructional features providing for lubrication

|  | F16J 1/09 |
· | with means for guiding fluids (Fulltext... Hierarchy... Expanded...F16J 1/08 takes precedence) [3]

|  | F16J 1/10 |
· | Connection to driving members

|  | F16J 1/12 |
· · | with piston-rods, i.e. rigid connections

|  | F16J 1/14 |
· · | with connecting-rods, i.e. pivotal connections

|  | F16J 1/16 |
· · · | with gudgeon-pin; Gudgeon-pins

|  | F16J 1/18 |
· · · · | Securing of gudgeon-pins

|  | F16J 1/20 |
· · · | with rolling contact, other than in ball or roller bearings

|  | F16J 1/22 |
· · · | with universal joint, e.g. ball-joint

|  | F16J 1/24 |
· · | designed to give the piston some rotary movement about its axis

P:0 |  | F16J 3/00 |
Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies Fulltext... Hierarchy... Expanded...B60C 29/00; bellows or the like used in instruments Fulltext... Hierarchy... Expanded...G12B 1/04; diaphragms for electromechanical transducers Fulltext... Hierarchy... Expanded...H04R 7/00)

|  | F16J 3/02 |
· | Diaphragms [2]

|  | F16J 3/04 |
· | Bellows [2]

|  | F16J 3/06 |
· | Bellows pistons [2]

P:20 |  | F16J 7/00 |
Piston-rods, i.e. rods rigidly connected to the piston (connecting-rods or like links pivoted at both ends Fulltext... Hierarchy... Expanded...F16C 7/00)

P:30 |  | F16J 9/00 |
Piston-rings, seats therefor; Ring sealings of similar construction in general (other sealings between pistons and cylinders Fulltext... Hierarchy... Expanded...F16J 3/06, Fulltext... Hierarchy... Expanded...F16J 15/16; tools for mounting or removing piston-rings or the like Fulltext... Hierarchy... Expanded...B25B; piston sealing arrangements on brake master cylinders Fulltext... Hierarchy... Expanded...B60T 11/236) [2,5]

|  | F16J 9/02 |
· | L-section rings

|  | F16J 9/04 |
· | Helical rings

|  | F16J 9/06 |
· | using separate springs expanding the rings; Springs therefor

|  | F16J 9/08 |
· | with expansion obtained by pressure of the medium

|  | F16J 9/10 |
· | Special members for adjusting the rings

|  | F16J 9/12 |
· | Details

|  | F16J 9/14 |
· · | Joint-closures

|  | F16J 9/16 |
· · · | obtained by stacking of rings

|  | F16J 9/18 |
· · · | with separate bridge-elements

|  | F16J 9/20 |
· · | Rings with special cross-section (L-section rings Fulltext... Hierarchy... Expanded...F16J 9/02); Oil-scraping rings

|  | F16J 9/22 |
· · | Rings for preventing wear of grooves or like seatings

|  | F16J 9/24 |
· · | Members preventing rotation of rings in grooves

|  | F16J 9/26 |
· | characterised by the use of particular materials [3]

|  | F16J 9/28 |
· · | of non-metals [3]

P:40 |  | F16J 10/00 |
Engine or like cylinders (pressure vessels in general Fulltext... Hierarchy... Expanded...F16J 12/00; cylinders for engines or other apparatus of particular kinds, see the appropriate subclasses, e.g. for combustion engines Fulltext... Hierarchy... Expanded...F02F); Features of hollow, e.g. cylindrical, bodies in general [3]

|  | F16J 10/02 |
· | Cylinders designed to receive moving pistons or plungers [3]

|  | F16J 10/04 |
· · | Running faces; Liners [3]

P:50 |  | F16J 12/00 |
Pressure vessels in general (covers therefor Fulltext... Hierarchy... Expanded...F16J 13/00; for particular applications, see the relevant subclasses, e.g. Fulltext... Hierarchy... Expanded...B01J, Fulltext... Hierarchy... Expanded...F17C, Fulltext... Hierarchy... Expanded...G21C) [3]

P:60 |  | F16J 13/00 |
Covers or similar closure members for pressure vessels in general (for engine or like cylinders Fulltext... Hierarchy... Expanded...F16J 10/00; sealings Fulltext... Hierarchy... Expanded...F16J 15/02; covers for box-like containers Fulltext... Hierarchy... Expanded...B65D 43/00; devices for securing or retaining closure members Fulltext... Hierarchy... Expanded...B65D 45/00; closures for containers not otherwise provided for Fulltext... Hierarchy... Expanded...B65D 51/00; manholes, covers for large containers Fulltext... Hierarchy... Expanded...B65D 90/10; gates or closures for large containers Fulltext... Hierarchy... Expanded...B65D 90/54; for vessels for containing or storing compressed, liquefied or solidified gases Fulltext... Hierarchy... Expanded...F17C 13/06; steam boilers Fulltext... Hierarchy... Expanded...F22B)

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

|  | F16J 13/04 |
· · | attached with a bridge member

|  | F16J 13/06 |
· · | attached only by clamps along the circumference

|  | F16J 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 Fulltext... Hierarchy... Expanded...E05C 9/00)

|  | F16J 13/10 |
· · | attached by means of a divided ring

|  | F16J 13/12 |
· · | attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like

|  | F16J 13/14 |
· · | attached exclusively by spring action or elastic action

|  | F16J 13/16 |
· | Pivoted closures (Fulltext... Hierarchy... Expanded...F16J 13/22 takes precedence) [3]

|  | F16J 13/18 |
· · | pivoted directly on the frame

|  | F16J 13/20 |
· · | mounted by mobile fastening on swinging arms

|  | F16J 13/22 |
· | with movement parallel to the plane of the opening [3]

|  | F16J 13/24 |
· | with safety devices, e.g. to prevent opening prior to pressure release [3]

P:70 |  | F16J 15/00 |
Sealings (sealing arrangements for vehicle windows, windscreens, non-fixed roofs, doors, or similar devices Fulltext... Hierarchy... Expanded...B60J 10/00; sealing or packing elements for container closures Fulltext... Hierarchy... Expanded...B65D 53/00; sealing arrangements in rotary-piston machines or engines Fulltext... Hierarchy... Expanded...F01C 19/00; sealings in non-positive-displacement machines or engines Fulltext... Hierarchy... Expanded...F01D 11/00; arrangements of sealings in combustion engines Fulltext... Hierarchy... Expanded...F02F 11/00; sealing arrangements in rotary-piston pumps Fulltext... Hierarchy... Expanded...F04C 27/00; sealing lead-in or lead-through insulators Fulltext... Hierarchy... Expanded...H01B 17/30) [5]

|  | F16J 15/02 |
· | between relatively-stationary surfaces (Fulltext... Hierarchy... Expanded...F16J 15/46, Fulltext... Hierarchy... Expanded...F16J 15/48 take precedence)

|  | F16J 15/04 |
· · | without packing between the surfaces, e.g. with ground surfaces, with cutting edge

|  | F16J 15/06 |
· · | with solid packing compressed between sealing surfaces

|  | F16J 15/08 |
· · · | with exclusively metal packing

|  | F16J 15/10 |
· · · | with non-metallic packing

|  | F16J 15/12 |
· · · · | with metal reinforcement or covering

|  | F16J 15/14 |
· · | by means of granular or plastic material, or fluid

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

|  | F16J 15/18 |
· · | with stuffing-boxes for elastic or plastic packings

|  | F16J 15/20 |
· · · | Packing materials therefor

|  | F16J 15/22 |
· · · · | shaped as strands, ropes, threads, ribbons, or the like

|  | F16J 15/24 |
· · · | with radially or tangentially compressed packing

|  | F16J 15/26 |
· · | with stuffing-boxes for rigid sealing rings

|  | F16J 15/28 |
· · · | with sealing rings made of metal

|  | F16J 15/30 |
· · · | with sealing rings made of carbon

|  | F16J 15/32 |
· · | with elastic sealing lip

|  | F16J 15/34 |
· · | with slip-ring pressed against a more or less radial face on one member

|  | F16J 15/36 |
· · · | connected by a diaphragm to the other member

|  | F16J 15/38 |
· · · | sealed by a packing [2]

|  | F16J 15/40 |
· · | by means of fluid

|  | F16J 15/42 |
· · · | kept in sealing position by centrifugal force

|  | F16J 15/43 |
· · · | kept in sealing position by magnetic force [6]

|  | F16J 15/44 |
· | Free-space packings

|  | F16J 15/447 |
· · | Labyrinth packings [3]

|  | F16J 15/453 |
· · · | characterised by the use of particular materials [3]

|  | F16J 15/46 |
· | with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings (connection of valves to inflatable elastic bodies Fulltext... Hierarchy... Expanded...B60C 29/00; specially adapted for tube connections Fulltext... Hierarchy... Expanded...F16L)

|  | F16J 15/48 |
· · | influenced by the pressure within the member to be sealed

|  | F16J 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

|  | F16J 15/52 |
· · | by means of sealing bellows or diaphragms (connection of valves to inflatable elastic bodies Fulltext... Hierarchy... Expanded...B60C 29/00)

|  | F16J 15/53 |
· | using magnetic means [6]

|  | F16J 15/54 |
· | Other sealings for rotating shafts

|  | F16J 15/56 |
· | Other sealings for reciprocating rods