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

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 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; 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, e.g. 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

|  | F16J 3/00 |
Diaphragms; Bellows; Bellows pistons

|  | F16J 3/02 |
· | Diaphragms [2]

|  | F16J 3/04 |
· | Bellows [2]

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

|  | F16J 7/00 |
Piston-rods

|  | 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) [2]

|  | 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]

|  | 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 sub-classes, 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]

|  | F16J 11/00 |
( transferred to Fulltext... Hierarchy... Expanded...F16J 10/00, Fulltext... Hierarchy... Expanded...F16J 12/00 )

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

|  | 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; for vessels for containing or storing compressed, liquefied or solidified gases Fulltext... Hierarchy... Expanded...F17C 13/06)

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

|  | 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)

|  | 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]

|  | F16J 15/00 |
Sealings

|  | 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 15/44 |
· | 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 (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

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

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