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 fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
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:
A47J 27/08Pressure cookers 
E04B 1/68Sealing building joints 
E05C 9/00Multi-point fastening of wings in general 
F01BMachines or engines in general or of reciprocating type, e.g. cylinders peculiar to steam engines F01B 31/28 
F02F 1/00Cylinders for combustion engines 
F02F 3/00Pistons for combustion engines 
F04D 29/08Sealings of non-positive displacement pumps 
F17B 1/04Sealing devices for sliding parts of gas holders of variable capacity 
F28F 9/04Arrangements 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 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)
 F16J 1/01
·  characterised by the use of particular materials (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 (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 B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers 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 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 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]
 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 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 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]
 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 F16J 13/00; for particular applications, see the relevant subclasses, e.g. B01J, F17C, G21C)  [3]
P:60 F16J 13/00
Covers 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)
 F16J 13/02
·  Detachable closure members; Means for tightening closures (F16J 13/16, 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 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 (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 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]
 F16J 15/02
·  between relatively-stationary surfaces (F16J 15/46, 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 (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]
 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 B60C 29/00; specially adapted for tube connections 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 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