Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
F16J
PISTONS {(specially adapted for dampers F16F 9/32)}; CYLINDERS; SEALINGS [2013-01]
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.
WARNING

  • The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:
    F16J15/53 covered by F16J 15/43
F16J 1/00
Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; {manufacture of pistons B23P 15/10 }; 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 for hydraulic engines F03C }; pumps F04B; floats F16K 33/00) [2013-01]
F16J 1/001
.
{One-piece pistons} [2013-01]
F16J 1/003
. .
{with integral sealing lips} [2013-01]
F16J 1/005
.
{obtained by assembling several pieces} [2013-01]
F16J 1/006
. .
{of different materials} [2013-01]
F16J 1/008
. . .
{with sealing lips} [2013-01]
F16J 1/01
.
characterised by the use of particular materials (F16J 1/02 takes precedence) [2013-01]
F16J 1/02
.
Bearing surfaces [2013-01]
F16J 1/04
.
Resilient guiding parts, e.g. skirts, particularly for trunk pistons [2013-01]
F16J 1/06
. .
with separate expansion members; Expansion members [2013-01]
F16J 1/08
.
Constructional features providing for lubrication [2013-01]
F16J 1/09
.
with means for guiding fluids (F16J 1/08 takes precedence) [2013-01]
F16J 1/10
.
Connection to driving members [2013-01]
F16J 1/12
. .
with piston-rods, e.g. rigid connections [2013-01]
F16J 1/14
. .
with connecting-rods, i.e. pivotal connections [2013-01]
F16J 1/16
. . .
with gudgeon-pin; Gudgeon-pins [2013-01]
F16J 1/18
. . . .
Securing of gudgeon-pins [2013-01]
F16J 1/20
. . .
with rolling contact, other than in ball or roller bearings [2013-01]
F16J 1/22
. . .
with universal joint, e.g. ball-joint [2013-01]
F16J 1/24
. .
designed to give the piston some rotary movement about its axis [2013-01]
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) [2013-01]
F16J 3/02
.
Diaphragms [2013-01]
F16J 3/04
.
Bellows [2013-01]
F16J 3/041
. .
{Non-metallic bellows} [2013-01]
F16J 3/042
. . .
{Fastening details} [2013-01]
F16J 3/043
. . .
{with particular means for limiting wear} [2013-01]
F16J 3/045
. . .
{Split bellows} [2013-01]
F16J 3/046
. . .
{Lubrication or venting arrangements} [2013-01]
F16J 3/047
. .
{Metallic bellows} [2013-01]
F16J 3/048
. .
{with guiding or supporting means} [2015-09]
F16J 3/06
.
Bellows pistons [2013-01]
F16J 7/00
Piston-rods [2013-01]
F16J 9/00
Piston-rings {, e.g. non-metallic piston-rings}, seats therefor; Ring sealings of similar construction (other sealings between pistons and cylinders F16J 3/06, F16J 15/16 {; manufacture of piston-rings B23P 15/06, B23P 15/08 }; tools for mounting or removing piston-rings or the like B25B; piston sealing arrangements on brake master cylinders B60T 11/236 {; sealing provided on pump pistons F04B 53/143}) [2016-01]
F16J 9/02
.
L-section rings [2013-01]
F16J 9/04
.
Helical rings [2013-01]
F16J 9/06
.
using separate springs {or elastic elements} expanding the rings; Springs therefor; {Expansion by wedging} [2013-01]
F16J 9/061
. .
{using metallic coiled or blade springs (F16J 9/145 takes precedence)} [2013-01]
F16J 9/062
. . .
{Coiled spring along the entire circonference} [2013-01]
F16J 9/063
. . .
{Strip or wire along the entire circonference} [2013-01]
F16J 9/064
. .
{Rings with a flat annular side rail} [2013-01]
F16J 9/065
. . .
{Spring expander with massive cross-section} [2013-01]
F16J 9/066
. . .
{Spring expander from sheet metal} [2013-01]
F16J 9/067
. . . .
{corrugated in the radial direction} [2013-01]
F16J 9/068
. . . .
{corrugated in the axial direction} [2013-01]
F16J 9/069
. . . .
{with a "C"-shaped cross section along the entire circumference} [2013-01]
F16J 9/08
.
with expansion obtained by pressure of the medium [2013-01]
F16J 9/10
.
Special members for adjusting the rings [2013-01]
F16J 9/12
.
Details [2013-01]
F16J 9/14
. .
Joint-closures [2013-01]
F16J 9/145
. . .
{of spring expanders} [2013-01]
F16J 9/16
. . .
obtained by stacking of rings [2013-01]
F16J 9/18
. . .
with separate bridge-elements [2013-01]
F16J 9/20
. .
Rings with special cross-section (L-section rings F16J 9/02); Oil-scraping rings {(F16J 9/06 takes precedence)} [2013-01]
F16J 9/203
. . .
{Oil-scraping rings} [2013-01]
WARNING

  • The group F16J 9/203 is no longer used for the classification of new documents from August 1st, 2002. The backlog of this group is being continuously reclassified to F16J 9/206, and to F16J 9/06 and sub-groups
F16J 9/206
. . .
{One-piece oil-scraping rings} [2013-01]
F16J 9/22
. .
Rings for preventing wear of grooves or like seatings [2013-01]
F16J 9/24
. .
Members preventing rotation of rings in grooves [2013-01]
F16J 9/26
.
characterised by the use of particular materials [2013-01]
F16J 9/28
.
of non-metals [2013-01]
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 [2013-01]
F16J 10/02
.
Cylinders designed to receive moving pistons or plungers [2013-01]
F16J 10/04
. .
Running faces; Liners [2013-01]
F16J 12/00
Pressure vessels in general (covers therefor F16J 13/00; for particular applications, see the relevant subclasses, e.g. B01J, F17C, G21C) [2013-01]
F16J 13/00
Covers or similar closure members for pressure vessels in general (for engines 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) [2013-01]
F16J 13/02
.
Detachable closure members; Means for tightening closures (F16J 13/16, F16J 13/22 take precedence) [2013-01]
F16J 13/04
. .
attached with a bridge member [2013-01]
F16J 13/06
. .
attached only by clamps along the circumference [2013-01]
F16J 13/065
. . .
{the clamp comprising a ring encircling the flange} [2013-01]
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) [2013-01]
F16J 13/10
. .
attached by means of a divided ring [2013-01]
F16J 13/12
. .
attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like [2013-01]
F16J 13/14
. .
attached exclusively by spring action or elastic action [2013-01]
F16J 13/16
.
Pivoted closures (F16J 13/22 takes precedence) [2013-01]
F16J 13/18
. .
pivoted directly on the frame [2013-01]
F16J 13/20
. .
mounted by mobile fastening on swinging arms [2013-01]
F16J 13/22
.
with movement parallel to the plane of the opening [2013-01]
F16J 13/24
.
with safety devices, e.g. to prevent opening prior to pressure release [2013-01]
F16J 15/00
Sealings [2016-01]
F16J 15/002
.
{comprising at least two sealings in succession (F16J 15/162, F16J 15/40 take precedence)} [2013-01]
F16J 15/004
. .
{forming or recuperation chamber for the leaking fluid} [2013-01]
F16J 15/006
. .
{with division of the pressure (F16J 15/44 takes precedence)} [2013-01]
F16J 15/008
. .
{with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings (F16J 15/164 takes precedence)} [2013-01]
F16J 15/02
.
between relatively-stationary surfaces (F16J 15/46, F16J 15/48 take precedence) [2013-01]
F16J 15/021
. .
{with elastic packing (F16J 15/08 takes precedence)} [2013-01]
F16J 15/022
. . .
{characterised by structure or material} [2013-01]
F16J 15/024
. . . .
{the packing being locally weakened in order to increase elasticity} [2013-01]
F16J 15/025
. . . . .
{and with at least one flexible lip} [2013-01]
F16J 15/027
. . . . .
{and with a hollow profile} [2013-01]
F16J 15/028
. . .
{the packing being mechanically expanded against the sealing surface} [2013-01]
F16J 15/04
. .
without packing between the surfaces, e.g. with ground surfaces, with cutting edge [2013-01]
F16J 15/06
. .
with solid packing compressed between sealing surfaces [2013-01]
F16J 15/061
. . .
{with positioning means (F16J 15/0831 takes precedence)} [2013-01]
F16J 15/062
. . .
{characterised by the geometry of the seat} [2013-01]
F16J 15/064
. . .
{the packing combining the sealing function with other functions} [2013-01]
F16J 15/065
. . . .
{fire resistant} [2013-01]
F16J 15/067
. . .
{Split packings} [2013-01]
F16J 15/068
. . .
{the packing swelling under working conditions} [2013-01]
F16J 15/08
. . .
with exclusively metal packing [2013-01]
F16J 15/0806
. . . .
{characterised by material or surface treatment} [2013-01]
F16J 15/0812
. . . . .
{with a braided or knitted body} [2013-01]
F16J 15/0818
. . . .
{Flat gaskets} [2013-01]
F16J 15/0825
. . . . .
{laminated} [2013-01]
F16J 15/0831
. . . . . .
{with mounting aids} [2013-01]
F16J 2015/0837
. . . . .
{with an edge portion folded over a second plate or shim} [2013-01]
F16J 2015/0843
. . . . .
{with an edge portion folded over the plate itself} [2013-01]
F16J 2015/085
. . . . .
{without fold over} [2013-01]
F16J 2015/0856
. . . . .
{with a non-metallic coating or strip} [2013-01]
F16J 2015/0862
. . . . .
{with a bore ring} [2013-01]
F16J 2015/0868
. . . . .
{Aspects not related to the edges of the gasket} [2013-01]
F16J 2015/0875
. . . . .
{comprising welds} [2013-01]
F16J 15/0881
. . . .
{the sealing effect being obtained by plastic deformation of the packing} [2013-01]
F16J 15/0887
. . . .
{the sealing effect being obtained by elastic deformation of the packing} [2013-01]
F16J 15/0893
. . . . .
{the packing having a hollow profile} [2013-01]
F16J 15/10
. . .
with non-metallic packing [2013-01]
F16J 15/102
. . . .
{characterised by material} [2013-01]
F16J 15/104
. . . .
{characterised by structure} [2013-01]
F16J 15/106
. . . . .
{homogeneous} [2013-01]
F16J 15/108
. . . .
{Special methods for making a non-metallic packing} [2013-01]
F16J 15/12
. . . .
with metal reinforcement or covering [2013-01]
F16J 15/121
. . . . .
{with metal reinforcement} [2013-01]
F16J 15/122
. . . . . .
{generally parallel to the surfaces} [2013-01]
F16J 15/123
. . . . . . .
{Details relating to the edges of the packing} [2013-01]
F16J 15/125
. . . . . .
{generally perpendicular to the surfaces} [2013-01]
F16J 15/126
. . . . . .
{consisting of additions, e.g. metallic fibres, metallic powders, randomly dispersed in the packing} [2013-01]
F16J 15/127
. . . . . .
{the reinforcement being a compression stopper} [2013-01]
F16J 15/128
. . . . .
{with metal covering} [2013-01]
F16J 15/14
. .
by means of granular or plastic material, or fluid [2013-01]
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 F16J 9/00) [2016-01]
F16J 15/162
. .
{Special parts or details relating to lubrication or cooling of the sealing itself (F16J 15/324, F16J 15/3404, F16J 15/40 take precedence)} [2013-01]
F16J 15/164
. .
{the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid} [2013-01]
F16J 15/166
. .
{with means to prevent the extrusion of the packing} [2013-01]
F16J 15/168
. .
{which permits material to be continuously conveyed} [2013-01]
F16J 15/18
. .
with stuffing-boxes for elastic or plastic packings [2013-01]
F16J 15/181
. . .
{for plastic packings} [2013-01]
F16J 15/182
. . .
{with lubricating, cooling or draining means} [2013-01]
F16J 15/183
. . . .
{using a lantern ring} [2013-01]
F16J 15/184
. . .
{Tightening mechanisms} [2013-01]
F16J 15/185
. . . .
{with continuous adjustment of the compression of the packing} [2013-01]
F16J 15/186
. . . . .
{using springs} [2013-01]
F16J 15/187
. . .
{Self-aligning stuffing-boxes} [2013-01]
F16J 15/188
. . .
{Split assemblies} [2013-01]
F16J 15/189
. . .
{Means for facilitating the removal of the packing} [2013-01]
F16J 15/20
. . .
Packing materials therefor [2013-01]
F16J 15/22
. . . .
shaped as strands, ropes, threads, ribbons, or the like [2013-01]
F16J 15/24
. . .
with radially or tangentially compressed packing [2013-01]
F16J 15/26
. .
with stuffing-boxes for rigid sealing rings [2013-01]
F16J 15/28
. . .
with sealing rings made of metal [2013-01]
F16J 15/30
. . .
with sealing rings made of carbon [2013-01]
F16J 15/32
. .
with elastic sealings, e.g. O-rings [2016-01]
F16J 15/3204
. . .
with at least one lip [2016-01]
F16J 15/3208
. . . .
provided with tension elements, e.g. elastic rings [2016-01]
F16J 15/3212
. . . . .
with metal springs [2016-01]
F16J 15/3216
. . . .
supported in a direction parallel to the surfaces [2016-01]
F16J 15/322
. . . .
supported in a direction perpendicular to the surfaces [2016-01]
F16J 15/3224
. . . .
capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations [2016-01]
F16J 15/3228
. . . .
formed by deforming a flat ring [2016-01]
F16J 15/3232
. . . .
having two or more lips [2016-01]
F16J 15/3236
. . . . .
with at least one lip for each surface, e.g. U-cup packings [2016-01]
F16J 15/324
. . .
Arrangements for lubrication or cooling of the sealing itself [2016-01]
F16J 15/3244
. . .
with hydrodynamic pumping action [2016-01]
F16J 15/3248
. . .
provided with casings or supports [2016-01]
F16J 15/3252
. . . .
with rigid casings or supports [2016-01]
F16J 15/3256
. . . . .
comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals [2016-01]
F16J 15/326
. . . . . .
with means for detecting or measuring relative rotation of the two elements [2016-01]
F16J 15/3264
. . . . . .
the elements being separable from each other [2016-01]
F16J 15/3268
. . .
Mounting of sealing rings [2016-01]
F16J 15/3272
. . . .
the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end [2016-01]
F16J 15/3276
. . . .
with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted [2016-01]
F16J 15/328
. . .
Manufacturing methods specially adapted for elastic sealings (moulding B29C) [2016-01]
F16J 15/3284
. . .
characterised by their structure; Selection of materials [2016-01]
F16J 15/3288
. . . .
Filamentary structures, e.g. brush seals [2016-01]
F16J 15/3292
. . . .
Lamellar structures [2016-01]
F16J 15/3296
. . .
Arrangements for monitoring the condition or operation of elastic sealings (F16J 15/326 takes precedence); Arrangements for control of elastic sealings, e.g. of their geometry or stiffness [2016-01]
F16J 15/34
. .
with slip-ring pressed against a more or less radial face on one member [2013-01]
F16J 15/3404
. . .
{and characterised by parts or details relating to lubrication, cooling or venting of the seal} [2013-01]
F16J 15/3408
. . . .
{at least one ring having an uneven slipping surface} [2013-01]
F16J 15/3412
. . . . .
{with cavities (F16J 15/3424 takes precedence)} [2013-01]
F16J 15/3416
. . . . . .
{with at least one continuous groove} [2013-01]
F16J 15/342
. . . . . .
{with means for feeding fluid directly to the face} [2013-01]
F16J 15/3424
. . . . .
{with micro-cavities} [2013-01]
F16J 15/3428
. . . . .
{with a wavy surface} [2013-01]
F16J 15/3432
. . . . .
{the geometry of the surface being able to vary during operation} [2013-01]
F16J 15/3436
. . .
{Pressing means} [2013-01]
F16J 15/344
. . . .
{the pressing force being applied by means of an elastic ring supporting the slip-ring} [2013-01]
F16J 15/3444
. . . .
{by magnetic attraction} [2013-01]
F16J 15/3448
. . . .
{the pressing force resulting from fluid pressure} [2013-01]
F16J 15/3452
. . . .
{the pressing force resulting from the action of a spring} [2013-01]
F16J 15/3456
. . . .
{without external means for pressing the ring against the face, e.g. slip-ring with a resilient lip} [2013-01]
F16J 15/346
. . . .
{the pressing force varying during operation} [2013-01]
F16J 15/3464
. . .
{Mounting of the seal} [2013-01]
F16J 15/3468
. . . .
{Means for controlling the deformations of the contacting faces} [2013-01]
F16J 15/3472
. . . .
{Means for centering or aligning the contacting faces} [2013-01]
F16J 15/3476
. . . .
{Means for minimising vibrations of the slip-ring} [2013-01]
F16J 15/348
. . . .
{Pre-assembled seals, e.g. cartridge seals} [2013-01]
F16J 15/3484
. . . . .
{Tandem seals} [2013-01]
F16J 15/3488
. . . .
{Split-rings} [2013-01]
F16J 15/3492
. . .
{with monitoring or measuring means associated with the seal} [2013-01]
F16J 15/3496
. . .
{use of special materials} [2013-01]
F16J 15/36
. . .
connected by a diaphragm {or bellow} to the other member [2013-01]
F16J 15/363
. . . .
{the diaphragm or bellow being made of metal} [2013-01]
F16J 15/366
. . . . .
{and comprising vibration-damping means} [2013-01]
F16J 15/38
. . .
sealed by a packing [2013-01]
F16J 15/40
. .
by means of fluid [2013-01]
F16J 15/403
. . .
{by changing the state of matter} [2013-01]
F16J 15/406
. . .
{by at least one pump} [2013-01]
F16J 15/42
. . .
kept in sealing position by centrifugal force [2013-01]
F16J 15/43
. . .
kept in sealing position by magnetic force [2013-01]
F16J 15/44
.
Free-space packings [2013-01]
F16J 15/441
. .
{with floating ring} [2013-01]
F16J 15/442
. . .
{segmented} [2013-01]
F16J 15/443
. .
{provided with discharge channels} [2013-01]
F16J 15/444
. .
{with facing materials having honeycomb-like structure} [2013-01]
F16J 15/445
. .
{with means for adjusting the clearance} [2013-01]
F16J 15/447
. .
Labyrinth packings [2013-01]
F16J 15/4472
. . .
{with axial path} [2013-01]
F16J 15/4474
. . . .
{Pre-assembled packings} [2013-01]
F16J 15/4476
. . .
{with radial path} [2013-01]
F16J 15/4478
. . . .
{Pre-assembled packings} [2013-01]
F16J 15/453
. . .
characterised by the use of particular materials {(F16J 15/444 takes precedence)} [2013-01]
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; {for sealing arrangements in vehicles B60J 10/244; for sealing arrangements of openings in buildings E06B 7/2318 }; for tube connections F16L) [2016-02]
F16J 15/48
. .
influenced by the pressure within the member to be sealed [2013-01]
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 [2013-01]
F16J 15/52
. .
by means of sealing bellows or diaphragms (connection of valves to inflatable elastic bodies B60C 29/00) [2013-01]
F16J 15/525
. . .
{fixed to a part of a transmission performing a wobbling or a circular translatory movement} [2013-01]
F16J 15/54
.
Other sealings for rotating shafts [2013-01]
F16J 15/545
. .
{submitted to unbalanced pressure in circumference; seals for oscillating actuator} [2013-01]
F16J 15/56
.
Other sealings for reciprocating rods [2013-01]