1. CPC Sections
  2. CPC Section F
  3. CPC Class F16
  4. CPC Subclass F16F
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
F16F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION [2018-08]
NOTES

  • This subclass covers:
    • springs, shock-absorbers or vibration-dampers;
    • their arrangement in, or adaptation for, particular apparatus if not provided for in the subclasses covering said apparatus.
  • This subclass does not cover inventions concerning the arrangement or adaptation of springs, shock-absorbers or vibration-dampers in, or for, particular apparatus, if provided for in the subclasses concerning the said apparatus, e.g.
    A47C 23/00 - A47C 27/00Spring mattresses
    {A61F 2/00}{Prostheses}
    A63C 5/075Vibration dampers in skis
    B60GVehicle suspensions
    B60R 19/24Mounting of bumpers on vehicles
    B61FRail vehicle suspensions
    B61G 11/00Buffers for railway or tramway vehicles
    B62D 21/15Vehicle chassis frames having impact absorbing means
    B62J 1/02Resiliently mounted saddles on cycles
    B62K 21/08Steering dampers
    B63H 21/30Anti-vibration mounting of marine propulsion plant in ships
    B64C 25/58Arrangement of shock-absorbers or springs in aeroplane alighting gear
    B65D 81/02Containers, packing elements or packages with shock-absorbing means
    D06F 37/20Resilient mountings in washing machines
    D06F 49/06Resilient mountings in domestic spin-dryers
    {E04B 1/98}{Protection of buildings against vibrations or shocks}
    E05D 7/086Braking devices structurally combined with hinges
    F03G 1/00Spring motors
    {F16L 3/20}{Pipe or cable supports}
    F21V 15/04Resilient mounting of lighting devices
    F41A 25/00Gun cradles to permit recoil
    F41B 5/1426Vibration dampers for archery bows
    G01D 11/00Indicating or recording in connection with measuring
    G01G 21/10Weighing apparatus, e.g. arrangement of shock-absorbers in weighing apparatus
    G04BClocks, watches
    G12B 3/08Damping of movements in instruments
    G21C 7/20Disposition of shock-absorbing devices for displaceable control elements in nuclear reactors.
    {H02G 7/14}{Arrangements or devices for damping mechanical oscillations of power lines}
  • Mention of "steel" or "metal" in groups F16F, unless specific mention is made otherwise, should be seen in the light of the title of group F16F 1/00, i.e. material having low internal friction. This normally includes composite materials such as fibre-reinforced plastics.
  • Mention of "rubber" or "plastics" in group F16F, unless specific mention is made otherwise, should be seen in the light of the title of group F16F 1/36, i.e. material having high internal friction. This normally does NOT include composite materials such as fibre-reinforced plastics except in the case of groups F16F 1/366 - F16F 1/3686 and F16F 15/305.
WARNINGS

  • The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:
    F16F3/07 covered by F16F 13/00
    F16F9/24 covered by F16F 9/22
    F16F9/40 covered by F16F 9/00 - F16F 9/50
    F16F9/508 covered by F16F 9/512
    F16F11/00 covered by F16F 7/00, F16F 9/00, F16F 15/00
    F16F13/12 covered by F16F 13/08
  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
F16F 1/00
Springs (working with fluid F16F 5/00, F16F 9/00) [2013-01]
F16F 1/02
.
made of steel or other material having low internal friction {(characterised by their special construction from fibre-reinforced plastics F16F 1/366; spring units consisting of several springs F16F 3/02; making springs from wire B21F 35/00)}; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant [2013-01]
F16F 1/021
. .
{characterised by their composition, e.g. comprising materials providing for particular spring properties (composition and manufacture of clock or watch springs G04B 1/145)} [2013-01]
F16F 1/022
. . .
{made of ceramic materials} [2013-01]
F16F 1/024
. .
{Covers or coatings therefor (F16F 1/24 takes precedence)} [2013-01]
F16F 1/025
. .
{characterised by having a particular shape (F16F 1/04, F16F 1/14, F16F 1/18, F16F 1/32, F16F 1/34 take precedence)} [2013-01]
F16F 1/027
. . .
{Planar, e.g. in sheet form; leaf springs} [2013-01]
F16F 1/028
. . .
{cylindrical, with radial openings} [2013-01]
F16F 1/04
. .
Wound springs {(making springs by coiling wire B21F 3/00)} [2013-01]
F16F 1/041
. . .
{with means for modifying the spring characteristics (F16F 1/12, F16F 3/06 take precedence; fluid regulation of coil spring characteristics in vehicle suspensions B60G 17/0272)} [2013-01]
F16F 1/042
. . .
{characterised by the cross-section of the wire} [2013-01]
F16F 1/043
. . . .
{the cross-section varying with the wire length} [2013-01]
F16F 1/045
. . .
{Canted-coil springs} [2013-01]
F16F 1/046
. . .
{with partial nesting of inner and outer coils (F16F 3/04 takes precedence)} [2013-01]
F16F 1/047
. . .
{characterised by varying pitch} [2013-01]
F16F 1/048
. . .
{with undulations, e.g. wavy springs} [2013-01]
F16F 1/06
. . .
with turns lying in cylindrical surfaces [2013-01]
F16F 1/065
. . . .
{characterised by loading of the coils in a radial direction (canted-coil springs F16F 1/045)} [2013-01]
F16F 1/08
. . .
with turns lying in mainly conical surfaces {, i.e. characterised by varying diameter (F16F 1/10 takes precedence)} [2017-08]
F16F 1/10
. . .
Spiral springs with turns lying substantially in plane surfaces {(F16F 1/326 takes precedence)} [2013-01]
F16F 1/12
. . .
Attachments or mountings {(F16F 1/041, F16F 13/02 take precedence; of combinations of vibration damper and mechanical spring for vehicle suspension units B60G 15/02)} [2013-01]
F16F 1/121
. . . .
{adjustable, e.g. to modify spring characteristics} [2013-01]
F16F 1/122
. . . .
{where coils, e.g. end coils, of the spring are rigidly clamped or similarly fixed} [2013-01]
F16F 1/123
. . . .
{characterised by the ends of the spring being specially adapted, e.g. to form an eye for engagement with a radial insert (F16F 1/122, F16F 1/125 take precedence)} [2013-01]
F16F 1/125
. . . .
{where the end coils of the spring engage an axial insert (F16F 1/126, F16F 1/128 take precedence)} [2013-01]
F16F 1/126
. . . .
{comprising an element between the end coil of the spring and the support proper, e.g. an elastomeric annulus (F16F 1/13 takes precedence)} [2013-01]
F16F 1/127
. . . .
{allowing rotation about axis of spring} [2013-01]
F16F 1/128
. . . .
{with motion-limiting means, e.g. with a full-length guide element or ball joint connections; with protective outer cover (F16F 1/121 takes precedence)} [2013-01]
F16F 1/13
. . . .
comprising inserts and spacers between the windings for changing the mechanical or physical characteristics of the spring {(F16F 1/122 takes precedence)} [2013-01]
F16F 1/14
. .
Torsion springs consisting of bars or tubes [2013-01]
F16F 1/145
. . .
{with means for modifying the spring characteristics (fluid regulation of torsion spring characteristics in vehicle suspensions B60G 17/0277)} [2013-01]
F16F 1/16
. . .
Attachments or mountings {(F16F 1/145 takes precedence; mounting means for vehicle stabiliser bars B60G 21/0551)} [2013-01]
F16F 1/18
. .
Leaf springs {(planar springs in general F16F 1/027; "Belleville"-type springs with generally radial arms F16F 1/324)} [2013-01]
F16F 1/182
. . .
{with inter-engaging portions between leaves or between leaves and mountings, e.g. ridges, notches, ripples} [2013-01]
F16F 1/185
. . .
{characterised by shape or design of individual leaves (F16F 1/22 takes precedence)} [2013-01]
F16F 1/187
. . . .
{shaped into an open profile, i.e. C- or U-shaped} [2013-01]
F16F 1/20
. . .
with layers, e.g. anti-friction layers, or with rollers between the leaves [2013-01]
F16F 1/22
. . .
with means for modifying the spring characteristic {(fluid regulation of leaf spring characteristics in vehicle suspensions B60G 17/0275)} [2013-01]
F16F 1/24
. . .
Lubrication; Covers, e.g. for retaining lubricant [2013-01]
F16F 1/26
. . .
Attachments or mountings ({F16F 1/182, F16F 1/22} B60G 11/10 take precedence) [2013-01]
F16F 1/28
. . . .
comprising cylindrical metal pins pivoted in close-fitting sleeves [2013-01]
F16F 1/30
. . . .
comprising intermediate pieces made of rubber or similar elastic material [2013-01]
F16F 1/32
. .
Belleville-type springs (friction-clutch diaphragm springs F16D 13/583) [2013-01]
F16F 1/322
. . .
{Snap-action springs} [2013-01]
F16F 1/324
. . .
{characterised by having tongues or arms directed in a generally radial direction, i.e. diaphragm-type springs} [2013-01]
F16F 1/326
. . . .
{with a spiral-like appearance} [2013-01]
F16F 1/328
. . .
{with undulations, e.g. wavy springs} [2013-01]
F16F 1/34
. .
Ring springs, i.e. annular bodies deformed radially due to axial load [2013-01]
F16F 1/36
.
made of rubber or other material having high internal friction, {e.g. thermoplastic elastomers (spring units consisting of several springs F16F 3/08)} [2013-01]
F16F 1/3605
. .
{characterised by their material (F16F 1/362, F16F 1/364, F16F 1/366, F16F 1/37 take precedence; composition of macromolecular compounds in general C08L)} [2013-01]
F16F 1/361
. . .
{comprising magneto-rheological elastomers [MR], (magneto-rheological fluid dampers F16F 9/535)} [2013-01]
F16F 1/3615
. .
{with means for modifying the spring characteristic (F16F 1/371 takes precedence)} [2013-01]
F16F 1/362
. .
made of steel wool, compressed hair, {woven or non-woven textile, or like materials} [2013-01]
F16F 1/364
. .
made of cork, wood or like material [2013-01]
​
F16F 1/366
. .
made of fibre-reinforced plastics, {i.e. characterised by their special construction from such materials} [2016-05]
NOTE

  • Attention is drawn to notes following the subclass title regarding interpretation of the term "plastics" in groups F16F, in particular as regards the subject matter of groups F16F 1/366 - F16F 1/3686.
F16F 1/3665
. . .
{Wound springs} [2013-01]
F16F 1/368
. . .
Leaf springs [2013-01]
F16F 1/3683
. . . .
{Attachments or mountings therefor} [2013-01]
F16F 1/3686
. . . . .
{End mountings} [2013-01]
F16F 1/37
. .
of foam-like material {, i.e. microcellular material}, e.g. sponge rubber {(padded linings for vehicle interiors B60R 21/04)} [2017-08]
F16F 1/371
. .
characterised by inserts or auxiliary extension {or exterior} elements, e.g. for rigidification (F16F 1/387 takes precedence; {non-embedded reinforcing elements for flexibly-walled air springs F16F 9/0436}) [2013-01]
F16F 1/3713
. . .
{with external elements passively influencing spring stiffness, e.g. rings or hoops} [2013-01]
F16F 1/3716
. . . .
{External elements such as covers or envelopes, that are flexible} [2013-01]
F16F 1/373
. .
characterised by having a particular shape {(F16F 9/58 takes precedence)} [2013-01]
F16F 1/3732
. . .
{having an annular or the like shape, e.g. grommet-type resilient mountings} [2013-01]
F16F 1/3735
. . . .
{Multi-part grommet-type resilient mountings} [2013-01]
F16F 1/3737
. . .
{Planar, e.g. in sheet form (vibration dampers comprising one or more constrained viscoelastic layers F16F 9/306)} [2013-01]
F16F 1/374
. . .
having a spherical or the like shape [2013-01]
F16F 1/376
. . .
having projections, studs, serrations or the like on at least one surface ({F16F 1/3835} , F16F 1/387 take precedence) [2013-01]
F16F 1/377
. . .
having holes or openings ({F16F 1/37} , F16F 1/387 take precedence) [2013-01]
F16F 1/379
. .
characterised by arrangements for controlling the spring temperature, e.g. by cooling [2017-02]
F16F 1/38
. .
with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin {, i.e. bushing-type (hydraulically-damped bushes F16F 13/14; suppression of vibrations in rotating systems by making use of elastomeric spring members between rotating elements, driveline torque being transmitted therebetween F16F 15/126, by making use of a dynamic damping mass attached to a rotating element by means of elastomeric springs F16F 15/14; pivots per se F16C 11/00; elastic or yielding bearings or bearing supports F16C 27/00; parts of sliding-contact bearings, e.g. bushes F16C 33/04)} [2017-08]
F16F 1/3807
. . .
{characterised by adaptations for particular modes of stressing} [2013-01]
F16F 1/3814
. . . .
{characterised by adaptations to counter axial forces (F16F 1/393 takes precedence)} [2013-01]
F16F 1/3821
. . . .
{characterised by adaptations to counter torsional forces} [2013-01]
F16F 1/3828
. . .
{End stop features or buffering (F16F 1/3807 takes precedence)} [2013-01]
F16F 1/3835
. . .
{characterised by the sleeve of elastic material, e.g. having indentations or made of materials of different hardness (F16F 1/3807, F16F 1/387 take precedence)} [2013-01]
F16F 1/3842
. . .
{Method of assembly, production or treatment; Mounting thereof (supports for pipes, cables or protective tubing F16L 3/00)} [2013-01]
F16F 1/3849
. . . .
{Mounting brackets therefor, e.g. stamped steel brackets; Restraining links} [2013-01]
F16F 1/3856
. . . .
{Vulcanisation or gluing of interface between rigid and elastic sleeves} [2013-01]
F16F 1/3863
. . .
{characterised by the rigid sleeves or pin, e.g. of non-circular cross-section (F16F 1/3807, F16F 1/387 take precedence)} [2013-01]
F16F 1/387
. . .
comprising means for modifying the rigidity in particular directions {(spherical or conical sleeves F16F 1/393)} [2013-01]
F16F 1/3873
. . . .
{having holes or openings} [2013-01]
F16F 1/3876
. . . .
{by means of inserts of more rigid material} [2013-01]
F16F 1/393
. . .
with spherical or conical sleeves [2013-01]
F16F 1/3935
. . . .
{Conical sleeves} [2013-01]
F16F 1/40
. .
consisting of a stack of similar elements separated by non-elastic intermediate layers {(F16F 9/306 takes precedence; laminated constructions to protect buildings against abnormal external influences, e.g. earthquakes, E04H 9/022)} [2013-01]
F16F 1/403
. . .
{characterised by the shape of the non-elastic interengaging parts between the elements} [2013-01]
F16F 1/406
. . .
{characterised by the shape of the elastic elements} [2013-01]
F16F 1/41
. . .
the spring consisting of generally conically arranged elements {(if sleeve-like, i.e. a surface of revolution F16F 1/3935)} [2013-01]
​
F16F 1/42
. .
characterised by the mode of stressing [2016-05]
NOTE

  • Classification of documents in groups F16F 1/42 - F16F 1/54, concerning the mode of stressing of elastomeric springs, is to be considered only when classification in other subgroups of F16F 1/36 would be unsuitable. Attention is drawn to the parallel scheme of indexing codes under F16F 2236/00.
F16F 1/422
. . .
{the stressing resulting in flexion of the spring} [2013-01]
F16F 1/424
. . . .
{of membrane-type springs} [2013-01]
F16F 1/426
. . . .
{Radial flexion of ring-type springs} [2013-01]
F16F 1/428
. . . .
{of strip- or leg-type springs} [2013-01]
F16F 1/44
. . .
loaded mainly in compression [2013-01]
F16F 1/445
. . . .
{the spring material being contained in a generally closed space (F16F 1/393 takes precedence)} [2013-01]
F16F 1/46
. . .
loaded mainly in tension [2013-01]
F16F 1/48
. . .
loaded mainly in torsion [2013-01]
F16F 1/50
. . .
loaded mainly in shear [2013-01]
F16F 1/505
. . . .
{Rotational shear} [2013-01]
F16F 1/52
. . .
loaded in combined stresses [2013-01]
F16F 1/54
. . . .
loaded in compression and shear [2013-01]
F16F 1/545
. . . . .
{Neidhart-type rubber springs (vehicle suspensions having Neidhart-type rubber springs B60G 11/225)} [2013-01]
​
F16F 3/00
Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic ({F16F 1/32, F16F 1/34, F16F 7/14 take precedence } ; if including fluid springs F16F 5/00, F16F 13/00) [2013-01]
NOTE

  • In this group, vehicle leaf spring units, i.e. "packets" of individual leaves, are considered as a single spring
F16F 3/02
.
with springs made of steel or of other material having low internal friction [2013-01]
F16F 3/023
. .
{composed only of leaf springs} [2013-01]
F16F 3/026
. .
{to give a zero-spring rate characteristic} [2013-01]
F16F 3/04
. .
composed only of wound springs [2013-01]
F16F 3/06
. . .
of which some are placed around others in such a way that they damp each other by mutual friction [2017-08]
F16F 3/08
.
with springs made of a material having high internal friction, e.g. rubber {(multi-part grommet-type resilient mountings F16F 1/3735)} [2013-01]
F16F 3/087
. .
Units comprising several springs made of plastics or the like material (F16F 1/40, {F16F 1/545} take precedence) [2013-01]
F16F 3/0873
. . .
{of the same material or the material not being specified} [2013-01]
F16F 3/0876
. . . .
{and of the same shape} [2013-01]
F16F 3/093
. . .
the springs being of different materials, e.g. having different types of rubber {(F16F 1/3835 takes precedence)} [2013-01]
F16F 3/0935
. . . .
{and being of the same shape} [2013-01]
F16F 3/10
. .
combined with springs made of steel or other material having low internal friction [2013-01]
F16F 3/12
. . .
the steel spring being in contact with the rubber spring {(F16F 1/12 takes precedence)} [2013-01]
F16F 5/00
Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling action; Combinations of devices including liquid springs {(dampers with solid or semi-solid material F16F 9/30)} [2013-01]
F16F 6/00
Magnetic springs {(magnetic spring arrangements for the suppression of vibration in systems F16F 15/03)}; Fluid magnetic springs {, i.e. magnetic spring combined with a fluid} [2017-08]
F16F 6/005
.
{using permanent magnets only} [2013-01]
F16F 7/00
Vibration-dampers; Shock-absorbers (using fluid F16F 5/00, F16F 9/00; specific for rotary systems F16F 15/10 {; belt tensioners F16H 7/12}) [2017-08]
F16F 7/003
.
{One-shot shock absorbers (using plastic deformation of members, e.g. using sacrificial, fibre-reinforced composite members F16F 7/12)} [2013-01]
F16F 7/006
. .
{using textile means (safety belts or body harnesses incorporating energy absorbing means A62B 35/04)} [2013-01]
F16F 7/01
.
using friction between loose particles, e.g. sand [2013-01]
F16F 7/015
. .
{the particles being spherical, cylindrical or the like} [2013-01]
F16F 7/02
.
with relatively-rotatable friction surfaces that are pressed together (F16F 7/01 takes precedence; one of the members being a spring F16F 13/02 {; friction devices between relatively-movable parts of a hinge E05D 11/08; braking devices for wings E05F 5/00}) [2017-08]
F16F 7/023
. .
{and characterised by damping force adjustment means} [2013-01]
F16F 7/026
. . .
{resulting in the damping effects being different according to direction of rotation} [2013-01]
F16F 7/04
. .
in the direction of the axis of rotation {(F16F 7/023 takes precedence)} [2013-01]
F16F 7/06
. .
in a direction perpendicular or inclined to the axis of rotation {(F16F 7/023 takes precedence)} [2013-01]
F16F 7/065
. . .
{where elements interengaging frictionally are in the shape of spiral bands} [2013-01]
F16F 7/08
.
with friction surfaces rectilinearly movable along each other (F16F 7/01 takes precedence {; one of the members being a spring F16F 13/02}) [2017-08]
F16F 7/082
. .
{and characterised by damping force adjustment means} [2013-01]
F16F 7/085
. . .
{resulting in the damping effects being different according to direction of movement} [2013-01]
F16F 7/087
. .
{Elastomeric surface effect dampers} [2013-01]
F16F 7/09
. .
in dampers of the cylinder-and-piston type [2013-01]
F16F 7/095
. . .
{frictional elements brought into engagement by movement along a surface oblique to the axis of the cylinder, e.g. interaction of wedge-shaped elements} [2013-01]
F16F 7/10
.
using inertia effect (F16F 13/108, F16F 13/22, F16F 15/10, F16F 15/22 take precedence; stabilising vehicle bodies by means of movable masses B62D 37/04; protection of buildings against vibrations or shocks by mass dampers E04H 9/0215; arrangements or devices for damping mechanical oscillations of power lines H02G 7/14) [2020-05]
F16F 7/1005
. .
{characterised by active control of the mass} [2013-01]
F16F 7/1011
. . .
{by electromagnetic means} [2013-01]
F16F 7/1017
. . .
{by fluid means} [2013-01]
F16F 7/1022
. .
{the linear oscillation movement being converted into a rotational movement of the inertia member, e.g. using a pivoted mass} [2013-01]
F16F 7/1028
. .
{the inertia-producing means being a constituent part of the system which is to be damped} [2013-01]
F16F 7/1034
. .
{of movement of a liquid} [2013-01]
F16F 7/104
. .
the inertia member being resiliently mounted {(F16F 7/1022 takes precedence)} [2013-01]
F16F 7/108
. . .
on plastics springs [2013-01]
F16F 7/112
. . .
on fluid springs [2013-01]
F16F 7/116
. . .
on metal springs [2013-01]
F16F 7/12
.
using plastic deformation of members {(F16F 9/30 takes precedence; yieldable means for mounting bumpers on vehicles B60R 19/26; yieldable or collapsible steering columns B62D 1/192)} [2013-01]
F16F 7/121
. .
{the members having a cellular, e.g. honeycomb, structure} [2013-01]
F16F 7/122
. . .
{characterised by corrugations, e.g. of rolled corrugated material} [2013-01]
F16F 7/123
. .
{Deformation involving a bending action, e.g. strap moving through multiple rollers, folding of members (F16F 7/125, F16F 7/128 take precedence)} [2013-01]
F16F 7/124
. .
{characterised by their special construction from fibre-reinforced plastics} [2013-01]
F16F 7/125
. .
{Units with a telescopic-like action as one member moves into, or out of a second member (F16F 7/124, F16F 7/127, F16F 7/128 take precedence)} [2013-01]
F16F 7/126
. . .
{against the action of shear pins; one member having protuberances, e.g. dimples, ball bearings which cause the other member to deform} [2013-01]
F16F 7/127
. .
{by a blade element cutting or tearing into a quantity of material; Pultrusion of a filling material} [2013-01]
F16F 7/128
. .
{characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart} [2013-01]
F16F 7/14
.
of cable support type, i.e. frictionally-engaged loop-forming cables [2013-01]
F16F 9/00
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium (F16F 5/00 takes precedence; connection of valves to inflatable elastic bodies B60C 29/00; {braking devices, stops or buffers for wing-operating appliances E05F 3/00, E05F 5/00}) [2013-01]
F16F 9/003
.
{Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber} [2013-01]
F16F 9/006
.
{characterised by the nature of the damping medium, e.g. biodegradable (variable viscosity damping adjustment F16F 9/53)} [2013-01]
F16F 9/02
.
using gas only {or vacuum (F16F 9/006 takes precedence)} [2013-01]
F16F 9/0209
. .
{Telescopic (F16F 9/04 takes precedence)} [2013-01]
F16F 9/0218
. . .
{Mono-tubular units (F16F 9/0227, F16F 9/0236, F16F 9/0245 take precedence)} [2013-01]
F16F 9/0227
. . .
{characterised by the piston construction} [2013-01]
F16F 9/0236
. . .
{characterised by having a hollow piston rod} [2013-01]
F16F 9/0245
. . .
{Means for adjusting the length of, or for locking, the spring or dampers} [2013-01]
F16F 9/0254
. . . .
{mechanically lockable, e.g. by use of friction collar (mechanical locking of extensible devices for holding wings E05C 17/30)} [2013-01]
F16F 9/0263
. . . .
{characterised by actuation means, e.g. manually-operated lever arrangement (F16F 9/0254 takes precedence)} [2013-01]
F16F 9/0272
. . . .
{with control rod extending through the piston rod into the piston} [2013-01]
F16F 9/0281
. . .
{Details} [2013-01]
F16F 9/029
. . . .
{electrical, e.g. connections or contacts} [2013-01]
F16F 9/04
. .
in a chamber with a flexible wall {(producing hollow articles of plastics, e.g. air bellows, B29D 22/00)} [2013-01]
F16F 9/0409
. . .
{characterised by the wall structure} [2013-01]
F16F 9/0418
. . .
{having a particular shape, e.g. annular, spherical, tube-like (F16F 9/05 takes precedence)} [2013-01]
F16F 9/0427
. . . .
{toroidal} [2013-01]
F16F 9/0436
. . .
{characterised by being contained in a generally closed space} [2013-01]
F16F 9/0445
. . .
{characterised by intermediate rings or other not embedded reinforcing elements (wall structure F16F 9/0409)} [2013-01]
F16F 9/0454
. . .
{characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane (F16F 9/0409, F16F 9/0445 take precedence)} [2013-01]
F16F 9/0463
. . . .
{with separate crimping rings} [2013-01]
F16F 9/0472
. . .
{characterised by comprising a damping device (with plastic deformation of members F16F 7/12; delay devices or arrangements F15B 21/10)} [2013-01]
F16F 9/0481
. . . .
{provided in an opening to the exterior atmosphere} [2013-01]
F16F 9/049
. . .
{multi-chamber units (F16F 9/0472, F16F 9/05 take precedence)} [2013-01]
F16F 9/05
. . .
the flexible wall being of the rolling diaphragm type [2013-01]
F16F 9/052
. . . .
{characterised by the bumper} [2013-01]
F16F 9/055
. . . .
{having a double diaphragm construction} [2013-01]
F16F 9/057
. . . .
{characterised by the piston} [2013-01]
F16F 9/06
.
using both gas and liquid {(F16F 9/486 take precedence; self-pumping fluid springs B60G 17/044)} [2013-01]
F16F 9/061
. .
{Mono-tubular units} [2013-01]
F16F 9/062
. .
{Bi-tubular units} [2013-01]
F16F 9/063
. .
{comprising a hollow piston rod} [2013-01]
F16F 9/064
. .
{Units characterised by the location or shape of the expansion chamber (F16F 9/068, F16F 9/08 take precedence)} [2013-01]
F16F 9/065
. . .
{Expansion chamber provided on the upper or lower end of a damper, separately there from or laterally on the damper} [2013-01]
F16F 9/066
. .
{Units characterised by the partition, baffle or like element (F16F 9/068, F16F 9/08 take precedence)} [2013-01]
F16F 9/067
. . .
{Partitions of the piston type, e.g. sliding pistons} [2013-01]
F16F 9/068
. .
{where the throttling of a gas flow provides damping action} [2013-01]
F16F 9/08
. .
{where gas is} in a chamber with a flexible wall {(pressurised fluid system accumulators per se F15B 1/04)} [2013-01]
F16F 9/081
. . .
{being of the fluid displacement type, i.e. the piston not comprising damping arrangements (F16F 9/096 takes precedence)} [2013-01]
F16F 9/082
. . .
{characterised by the hydropneumatic accumulator} [2013-01]
F16F 9/084
. . .
comprising a gas spring contained within a flexible wall, the wall not being in contact with the damping fluid, i.e. mounted externally on the damper cylinder [2013-01]
F16F 9/088
. . .
comprising a gas spring with a flexible wall provided within the cylinder on the piston rod of a monotubular damper or within the inner tube of a bitubular damper [2013-01]
F16F 9/092
. . .
comprising a gas spring with a flexible wall provided between the tubes of a bitubular damper [2013-01]
F16F 9/096
. . .
comprising a hydropneumatic accumulator of the membrane type provided on the upper or the lower end of a damper or separately from or laterally on the damper {(F16F 9/088 takes precedence)} [2013-01]
F16F 9/10
.
using liquid only; using a fluid of which the nature is immaterial [2013-01]
F16F 9/103
. .
{Devices with one or more members moving linearly to and fro in chambers, any throttling effect being immaterial, i.e. damping by viscous shear effect only (F16F 9/53 takes precedence)} [2013-01]
F16F 9/106
. .
{Squeeze-tube devices} [2013-01]
F16F 9/12
. .
Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, {i.e. damping by viscous shear effect only (F16F 9/53 takes precedence; pivoting supports for apparatus or articles placed on stands or trestles F16M 11/06)} [2013-01]
F16F 9/125
. . .
{characterised by adjustment means} [2013-01]
F16F 9/14
. .
Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect [2013-01]
F16F 9/145
. . .
{involving only rotary movement of the effective parts (wing closers or openers with fluid brakes of the rotary type E05F 3/14)} [2013-01]
F16F 9/16
. . .
involving only straight-line movement of the effective parts {(wing closers or openers with liquid piston brakes E05F 3/04)} [2013-01]
F16F 9/165
. . . .
{with two or more cylinders in line, i.e. in series connection (F16F 9/26 takes precedence)} [2013-01]
F16F 9/18
. . . .
with a closed cylinder and a piston separating two or more working spaces therein [2013-01]
F16F 9/182
. . . . .
{comprising a hollow piston rod} [2013-01]
F16F 9/185
. . . . .
{Bitubular units (where compression of gas leads to a clear spring action F16F 9/062)} [2013-01]
F16F 9/187
. . . . . .
{with uni-directional flow of damping fluid through the valves} [2013-01]
F16F 9/19
. . . . .
with a single cylinder {and of single-tube type} [2013-01]
F16F 9/20
. . . . .
with the piston-rod extending through both ends of the cylinder {, e.g. constant-volume dampers} [2017-08]
F16F 9/22
. . . .
with one or more cylinders each having a single working space closed by a piston or plunger [2013-01]
F16F 9/26
. . . . .
with two cylinders in line and with the two pistons or plungers connected together [2013-01]
F16F 9/28
. . . . .
with two parallel cylinders and with the two pistons or plungers connected together [2013-01]
F16F 9/285
. . . . . .
{by a rocker arm} [2013-01]
F16F 9/30
.
with solid or semi-solid material, e.g. pasty masses, as damping medium {(in devices where rotary elements are damped by viscous shear effect only, any throttling effect being immaterial F16F 9/12; where members moving with a rotating system are being damped F16F 15/16)} [2013-01]
F16F 9/303
. .
{the damper being of the telescopic type} [2013-01]
F16F 9/306
. .
{of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers} [2013-01]
F16F 9/32
.
Details [2013-01]
F16F 9/3207
. .
{Constructional features (F16F 9/34 - F16F 9/50 take precedence; assembly or repair F16F 9/3271)} [2016-05]
F16F 9/3214
. . .
{of pistons (F16F 9/0227 and F16F 9/36 take precedence; throttling passages in or on piston body F16F 9/3405)} [2013-01]
F16F 9/3221
. . .
{of piston rods} [2013-01]
F16F 9/3228
. . .
{of connections between pistons and piston rods} [2013-01]
F16F 9/3235
. . .
{of cylinders (F16F 9/483 takes precedence)} [2013-01]
F16F 9/3242
. . . .
{of cylinder ends, e.g. caps} [2013-01]
F16F 9/325
. . . .
{for attachment of valve units} [2013-01]
F16F 9/3257
. . . .
{in twin-tube type devices} [2013-01]
F16F 9/3264
. .
{Arrangements for indicating, e.g. fluid level; Arrangements for checking dampers (F16F 9/3292 takes precedence; testing of vehicle damping G01M 17/04)} [2013-01]
F16F 9/3271
. .
{Assembly or repair} [2013-01]
F16F 9/3278
. .
{for lubrication (lubricating per se F16N)} [2013-01]
F16F 9/3285
. .
{for filtering (filters per se B01D)} [2013-01]
F16F 9/3292
. .
{Sensor arrangements} [2013-01]
F16F 9/34
. .
Special valve constructions ({F16F 9/44, F16F 9/50 take precedence; filtering details F16F 9/3285} ; valves in general F16K); Shape or construction of throttling passages [2013-01]
F16F 9/3405
. . .
{Throttling passages in or on piston body, e.g. slots (F16F 9/344, F16F 9/3481 take precedence)} [2013-01]
F16F 9/341
. . .
{comprising noise-reducing or like features, e.g. screens (F16F 9/3415 takes precedence)} [2013-01]
F16F 9/3415
. . .
{characterised by comprising plastics, elastomeric or porous elements} [2013-01]
F16F 9/342
. . .
Throttling passages operating with metering pins {(F16F 9/486 takes precedence)} [2013-01]
F16F 9/344
. . .
Vortex flow passages [2013-01]
F16F 9/346
. . .
Throttling passages in the form of slots arranged in cylinder walls [2013-01]
F16F 9/3465
. . . .
{Slots having a variable section along their length} [2013-01]
F16F 9/348
. . .
Throttling passages in the form of annular discs {or other plate-like elements which may or may not have a spring action}, operating in opposite directions {or singly, e.g. annular discs positioned on top of the valve or piston body (F16F 9/341, F16F 9/3415 take precedence)} [2013-01]
F16F 9/3481
. . . .
{characterised by shape or construction of throttling passages in piston (F16F 9/344 takes precedence)} [2013-01]
F16F 9/3482
. . . .
{the annular discs being incorporated within the valve or piston body (F16F 9/3484, F16F 9/3485 take precedence)} [2013-01]
F16F 9/3484
. . . .
{characterised by features of the annular discs per se, singularly or in combination} [2013-01]
F16F 9/3485
. . . .
{characterised by features of supporting elements intended to guide or limit the movement of the annular discs (F16F 9/3488 takes precedence)} [2013-01]
F16F 9/3487
. . . . .
{with spacers or spacing rings} [2013-01]
F16F 9/3488
. . . .
{characterised by features intended to affect valve bias or pre-stress} [2013-01]
F16F 9/36
. .
Special sealings, including sealings or guides for piston-rods ({F16F 9/325, F16F 9/3485 take precedence; arrangements for filling via piston rod sealing or guiding means F16F 9/432} ; sealing of moving parts in general F16J 15/16 - F16J 15/56) [2016-05]
F16F 9/361
. . .
{Sealings of the bellows-type} [2013-01]
F16F 9/362
. . .
{Combination of sealing and guide arrangements for piston rods (F16F 9/361, F16F 9/365 take precedence)} [2013-01]
F16F 9/363
. . . .
{the guide being mounted between the piston and the sealing, enabling lubrication of the guide} [2013-01]
F16F 9/364
. . . .
{of multi-tube dampers} [2013-01]
F16F 9/365
. . .
{the sealing arrangement having a pressurised chamber separated from the damping medium} [2013-01]
F16F 9/366
. . .
{functioning as guide only, e.g. bushings} [2013-01]
F16F 9/367
. . . .
{allowing misalignment of the piston rod} [2013-01]
F16F 9/368
. . .
{Sealings in pistons} [2013-01]
F16F 9/369
. . .
{Sealings for elements other than pistons or piston rods, e.g. valves} [2013-01]
F16F 9/38
. .
Covers for protection or appearance [2013-01]
F16F 9/42
. .
Cooling arrangements [2013-01]
F16F 9/43
. .
Filling {or drainage} arrangements, e.g. for supply of gas {(filling vessels with, or discharging from vessels, compressed, liquefied, or solidified gases F17C)} [2013-01]
F16F 9/432
. . .
{via piston rod sealing or guiding means} [2013-01]
F16F 9/435
. . .
{via opening in cylinder wall (F16F 9/432 takes precedence)} [2013-01]
F16F 9/437
. . .
{Drainage arrangements} [2013-01]
F16F 9/44
. .
Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction (F16F 9/53, {F16F 13/26} take precedence; temperature correction only F16F 9/52) [2017-08]
F16F 9/443
. . .
{manually adjusted while the damper is fully retracted or extended in a non-operational mode by rotating mechanical means that have engaged between the piston and one end of the cylinder} [2013-01]
F16F 9/446
. . .
{Adjustment of valve bias or pre-stress (F16F 9/443 takes precedence)} [2013-01]
F16F 9/46
. . .
allowing control from a distance {, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall (attachment of valve units to cylinders F16F 9/325)} [2017-08]
F16F 9/461
. . . .
{characterised by actuation means} [2013-01]
F16F 9/462
. . . . .
{Rotary actuation means} [2013-01]
F16F 9/463
. . . .
{characterised by electrical connections} [2013-01]
F16F 9/464
. . . .
{Control of valve bias or pre-stress, e.g. electromagnetically (F16F 9/465 takes precedence)} [2013-01]
F16F 9/465
. . . .
{using servo control, the servo pressure being created by the flow of damping fluid, e.g. controlling pressure in a chamber downstream of a pilot passage (self-adjustment of damping F16F 9/50)} [2013-01]
F16F 9/466
. . . .
{Throttling control, i.e. regulation of flow passage geometry (F16F 9/464, F16F 9/465 take precedence)} [2013-01]
F16F 9/467
. . . . .
{using rotary valves} [2013-01]
F16F 9/468
. . . . . .
{controlling at least one bypass to main flow path} [2013-01]
F16F 9/469
. . . . .
{Valves incorporated in the piston (F16F 9/467 takes precedence)} [2013-01]
F16F 9/48
. .
Arrangements for providing different damping effects at different parts of the stroke ({F16F 9/346, F16F 9/516} , F16F 9/53 take precedence) [2013-01]
F16F 9/483
. . .
{characterised by giving a particular shape to the cylinder, e.g. conical} [2013-01]
F16F 9/486
. . .
{comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod} [2013-01]
F16F 9/49
. . .
Stops limiting fluid passage, e.g. hydraulic stops {or elastomeric elements inside the cylinder which contribute to changes in fluid damping (fluid-actuated displacement devices with means for accelerating or decelerating the stroke F15B 15/22)} [2013-01]
F16F 9/50
. .
Special means providing automatic damping adjustment, {i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs}(F16F 9/53 takes precedence); {Special means providing self-adjustment of spring characteristics} [2013-01]
F16F 9/504
. . .
Inertia {, i.e. acceleration,}-sensitive means [2017-08]
F16F 9/512
. . .
Means responsive to load action, {i.e. static load} on the damper or {dynamic} fluid pressure {changes} in the damper, {e.g. due to changes in velocity (F16F 9/504, F16F 9/516 take precedence; non-automatic damper adjustment from a distance using servo control, the servo pressure being created by the flow of damping fluid F16F 9/465; self-pumping fluid springs in vehicle suspensions B60G 17/044)} [2013-01]
F16F 9/5123
. . . .
{responsive to the static or steady-state load on the damper} [2013-01]
F16F 9/5126
. . . .
{Piston, or piston-like valve elements (F16F 9/504 takes precedence)} [2013-01]
F16F 9/516
. . .
resulting in the damping effects during contraction being different from the damping effects during extension {, i.e. responsive to the direction of movement (F16F 9/504 takes precedence)} [2017-08]
F16F 9/5165
. . . .
{by use of spherical valve elements or like free-moving bodies} [2013-01]
F16F 9/52
. . .
in case of change of temperature ({F16F 9/003 takes precedence; } combined with external adjustment F16F 9/44) [2013-01]
F16F 9/523
. . . .
{with coil or spiral of bimetallic elements being used to change flow cross-section} [2013-01]
F16F 9/526
. . . .
{Self-adjustment of fluid springs} [2013-01]
F16F 9/53
. .
Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically {(F16F 13/30 takes precedence; brakes comprising a medium with electrically or magnetically controlled friction F16D 57/002; electrorheological fluids per se C10M 171/001; magnetorheological fluids per se H01F 1/447)} [2013-01]
F16F 9/532
. . .
{Electrorheological [ER] fluid dampers} [2013-01]
F16F 9/535
. . .
{Magnetorheological [MR] fluid dampers (springs comprising magnetorheological [MR] elastomers F16F 1/361)} [2013-01]
F16F 9/537
. . . .
{specially adapted valves therefor} [2013-01]
F16F 9/54
. .
Arrangements for attachment {(grommet-type rubber mounting springs per se F16F 1/3732; construction of cylinder ends F16F 9/3242; attachments to vehicles B60G 13/001, B60G 15/00)} [2013-01]
F16F 9/56
. .
Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke {(F16F 9/50 takes precedence; for telescopic gas springs or dampers F16F 9/0245; vehicle suspension locking arrangements B60G 17/005)} [2013-01]
F16F 9/58
. .
Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder (F16F 9/49 takes precedence) [2013-01]
F16F 9/585
. . .
{within the cylinder, in contact with working fluid} [2013-01]
F16F 13/00
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F16F 5/00, {F16F 6/00, F16F 9/003} take precedence) [2013-01]
F16F 13/002
.
{comprising at least one fluid spring (F16F 13/005, F16F 13/02, F16F 13/04 take precedence)} [2013-01]
F16F 13/005
.
{comprising both a wound spring and a damper, e.g. a friction damper} [2013-01]
F16F 13/007
. .
{the damper being a fluid damper} [2013-01]
F16F 13/02
.
damping by frictional contact between the spring and braking means (frictionally coacting wound springs F16F 3/06) [2013-01]
F16F 13/04
.
comprising both a plastics spring and a damper, e.g. a friction damper [2013-01]
F16F 13/06
. .
the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper (F16F 13/26 takes precedence) [2013-01]
F16F 13/08
. . .
the plastics spring forming at least a part of the wall of the fluid chamber of the damper (F16F 13/20 - F16F 13/24 take precedence) [2016-05]
F16F 13/085
. . . .
{characterised by features of plastics springs; Attachment arrangements} [2013-01]
F16F 13/10
. . . .
the wall being at least in part formed by a flexible membrane or the like (F16F 13/14 - F16F 13/18 take precedence) [2016-05]
F16F 13/101
. . . . .
{characterised by buffering features or stoppers} [2013-01]
F16F 13/102
. . . . .
{characterised by features of flexible walls of equilibration chambers; decoupling or self-tuning means} [2013-01]
F16F 13/103
. . . . .
{characterised by method of assembly, production or treatment} [2013-01]
F16F 13/105
. . . . .
{characterised by features of partitions between two working chambers} [2013-01]
F16F 13/106
. . . . . .
{Design of constituent elastomeric parts, e.g. decoupling valve elements, or of immediate abutments therefor, e.g. cages} [2013-01]
F16F 13/107
. . . . . .
{Passage design between working chambers} [2013-01]
F16F 13/108
. . . . .
{characterised by features of plastics springs, e.g. attachment arrangements (F16F 13/18 takes precedence)} [2013-01]
F16F 13/14
. . . .
Units of the bushing type {, i.e. loaded predominantly radially (bushes F16F 1/38; mounting brackets therefor F16F 1/3849)} [2017-08]
F16F 13/1409
. . . . .
{characterised by buffering features or stoppers} [2013-01]
F16F 13/1418
. . . . .
{characterised by the location or shape of the equilibration chamber} [2013-01]
F16F 13/1427
. . . . .
{characterised by features of flexible walls of equilibration chambers; decoupling or self-tuning means} [2013-01]
F16F 13/1436
. . . . .
{with free- or virtually free-floating members} [2013-01]
F16F 13/1445
. . . . .
{characterised by method of assembly, production or treatment} [2013-01]
F16F 13/1454
. . . . . .
{Sealing of units} [2013-01]
F16F 13/1463
. . . . .
{characterised by features of passages between working chambers} [2013-01]
F16F 13/1472
. . . . . .
{Valve elements to cope with over-pressure, e.g. lips} [2013-01]
F16F 13/1481
. . . . .
{characterised by features of plastic springs, e.g. presence of cavities or stiffeners; characterised by features of flexible walls of equilibration chambers, i.e. membranes} [2013-01]
F16F 13/149
. . . . .
{Multiple bushings connected together; Restraining links} [2013-01]
F16F 13/16
. . . . .
specially adapted for receiving axial loads {(F16F 13/1436 takes precedence)} [2013-01]
F16F 13/18
. . . .
characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber, surrounding the plastics spring or being annular (F16F 13/1418 takes precedence) [2013-01]
F16F 13/20
. . .
characterised by comprising also a pneumatic spring (F16F 13/22, {F16F 13/26} take precedence) [2013-01]
F16F 13/22
. . .
characterised by comprising also a dynamic damper (dampers using inertia effect per se F16F 7/10) [2015-11]
F16F 13/24
. . .
the central part of the unit being supported by one element and both extremities of the unit being supported by a single other element, i.e. double acting mounting [2013-01]
F16F 13/26
. .
characterised by adjusting or regulating devices responsive to exterior conditions {(F16F 13/101 takes precedence)} [2013-01]
F16F 13/262
. . .
{changing geometry of passages between working and equilibration chambers, e.g. cross-sectional area or length (F16F 13/28 takes precedence)} [2013-01]
F16F 13/264
. . .
{comprising means for acting dynamically on the walls bounding a working chamber} [2013-01]
F16F 13/266
. . .
{comprising means for acting dynamically on the walls bounding a passage between working and equilibration chambers} [2013-01]
F16F 13/268
. . .
{comprising means for acting dynamically on the walls bounding an equilibration chamber (F16F 13/264 take precedence)} [2013-01]
F16F 13/28
. . .
specially adapted for units of the bushing type (F16F 13/30 takes precedence) [2013-01]
F16F 13/30
. . .
comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids [2013-01]
F16F 13/305
. . . .
{magnetorheological} [2013-01]
F16F 15/00
Suppression of vibrations in systems ({damping of non-rotary systems using inertia effect F16F 7/10; prevention or isolation of vibrations in machine tools B23Q 11/0032; suppression of driveline vibrations in hybrid vehicle transmissions B60W 30/20} ; vehicle seat suspension devices B60N 2/50; {methods or devices for protecting against, or damping of, acoustic waves, e.g. sound G10K 11/16}); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion ({vibration absorbing or balancing means for aircraft propellers B64C 11/008, for rotorcraft rotors B64C 27/001} ; testing static and dynamic balance of machines or structures G01M 1/00) [2013-01]
F16F 15/002
.
{characterised by the control method or circuitry (control of mechanical oscillations per se G05D 19/00)} [2013-01]
F16F 15/005
.
{using electro- or magnetostrictive actuation means (generating of mechanical vibrations operating with electrostriction B06B 1/06, with magnetostriction B06B 1/08; vehicle suspension arrangements characterised by use of piezoelectric elements B60G 17/01941; piezoelectric, electrostrictive and magnetostrictive devices per se H10N 30/00)} [2023-08]
F16F 15/007
. .
{Piezoelectric elements being placed under pre-constraint, e.g. placed under compression} [2024-01]
F16F 15/02
.
Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems ({F16F 15/005 takes precedence } ; layered products B32B; suppression of vibration in ships B63; {relieving load on bearings, using magnetic means F16C 39/06}) [2013-01]
F16F 15/021
. .
{Decoupling of vibrations by means of point-of-contact supports, e.g. ball bearings} [2013-01]
F16F 15/022
. .
{using dampers and springs in combination} [2013-01]
F16F 15/023
. .
using fluid means [2013-01]
F16F 15/0232
. . .
{with at least one gas spring (F16F 15/027 takes precedence)} [2013-01]
F16F 15/0235
. . .
{where a rotating member is in contact with fluid (rotary viscous dampers per se F16F 9/12; suppression of vibrations in rotating systems containing a fluid F16F 15/16)} [2013-01]
F16F 15/0237
. . .
{involving squeeze-film damping} [2013-01]
F16F 15/027
. . .
comprising control arrangements {(F16F 15/0237 takes precedence)} [2013-01]
F16F 15/0275
. . . .
{Control of stiffness} [2013-01]
F16F 15/03
. .
using {magnetic or} electromagnetic means (F16F 9/53, {F16F 15/005} take precedence) [2013-01]
F16F 15/035
. . .
{by use of eddy or induced-current damping (dynamo-electric brakes of the eddy-current type H02K 49/04)} [2013-01]
F16F 15/04
. .
using elastic means (single elements or their attachment F16F 1/00 - F16F 13/00); {(F16F 15/023, F16F 15/03 take precedence)} [2016-05]
F16F 15/043
. . .
{acting on a cam follower} [2013-01]
F16F 15/046
. . .
{using combinations of springs of different kinds (F16F 15/085 takes precedence)} [2013-01]
F16F 15/06
. . .
with metal springs (with rubber springs also F16F 15/08) [2013-01]
F16F 15/063
. . . .
{with bars or tubes used as torsional elements} [2013-01]
F16F 15/067
. . . .
using only wound springs [2013-01]
F16F 15/073
. . . .
using only leaf springs [2013-01]
F16F 15/08
. . .
with rubber springs {(grommet- or bushing-type resilient mountings F16F 1/3732, F16F 1/38); with springs made of rubber and metal (arrangement of internal-combustion or jet-propulsion units B60K 5/12; mounting of propulsion plants on vessels B63H 21/30; mounting of vehicle drivers' cabs B62D 33/0604)} [2013-01]
F16F 15/085
. . . .
{Use of both rubber and metal springs} [2013-01]
F16F 15/10
.
Suppression of vibrations in rotating systems by making use of members moving with the system (by balancing F16F 15/22 {; yielding couplings F16D 3/00} ; with flywheels acting variably or intermittently F16H {; construction providing resilience or vibration-damping for gear elements F16H 55/14}) [2017-08]
F16F 15/12
. .
using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon ({F16F 15/14} , F16F 15/16 take precedence) [2013-01]
F16F 15/1201
. . .
{for damping of axial or radial, i.e. non-torsional vibrations (F16F 15/13107 takes precedence)} [2013-01]
F16F 15/1202
. . .
{the damping action being at least partially controlled by centrifugal masses (F16F 15/13128 takes precedence)} [2013-01]
F16F 15/1203
. . .
{characterised by manufacturing, e.g. assembling or testing procedures for the damper units (F16F 15/13142 takes precedence)} [2013-01]
F16F 15/1204
. . .
{with a kinematic mechanism or gear system (F16F 15/1202, F16F 15/13157 take precedence)} [2013-01]
F16F 15/1205
. . . .
{with a kinematic mechanism, i.e. linkages, levers} [2013-01]
F16F 15/1206
. . . .
{with a planetary gear system} [2013-01]
F16F 15/1207
. . .
{characterised by the supporting arrangement of the damper unit (F16F 15/1238, F16F 15/13164 take precedence)} [2013-01]
F16F 15/1208
. . . .
{Bearing arrangements} [2013-01]
F16F 15/1209
. . . . .
{comprising sliding bearings} [2013-01]
F16F 15/121
. . .
using springs as elastic members, e.g. metallic springs {(F16F 15/133 takes precedence)} [2013-01]
F16F 15/1211
. . . .
{C-shaped springs} [2013-01]
F16F 15/1212
. . . . .
{disposed around axis of rotation} [2013-01]
F16F 15/1213
. . . .
{Spiral springs, e.g. lying in one plane, around axis of rotation} [2013-01]
F16F 15/1214
. . . .
{Folded springs, i.e. made of band-like material folded in an enclosing space} [2013-01]
F16F 15/1215
. . . .
{Leaf springs, e.g. radially extending} [2013-01]
F16F 15/1216
. . . .
{Torsional springs, e.g. torsion bar or torsionally-loaded coil springs} [2013-01]
F16F 15/1217
. . . .
{Motion-limiting means, e.g. means for locking the spring unit in pre-defined positions (F16F 15/1202, F16F 15/1338 take precedence)} [2013-01]
F16F 15/1218
. . . . .
{by means of spring-loaded radially arranged locking means} [2013-01]
F16F 15/1219
. . . . .
{by means of spring-loaded axially arranged locking means} [2013-01]
F16F 15/123
. . . .
Wound springs {(F16F 15/1213, F16F 15/1216, F16F 15/127 take precedence)} [2013-01]
F16F 15/12306
. . . . .
{Radially mounted springs} [2013-01]
F16F 15/12313
. . . . .
{characterised by the dimension or shape of spring-containing windows} [2013-01]
F16F 15/1232
. . . . .
{characterised by the spring mounting (F16F 15/12306, F16F 15/12313 take precedence)} [2013-01]
F16F 15/12326
. . . . . .
{End-caps for springs} [2013-01]
F16F 15/12333
. . . . . . .
{having internal abutment means} [2013-01]
F16F 15/1234
. . . . . .
{Additional guiding means for springs, e.g. for support along the body of springs that extend circumferentially over a significant length} [2013-01]
F16F 15/12346
. . . . . .
{Set of springs, e.g. springs within springs} [2013-01]
F16F 15/12353
. . . . .
{Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations} [2013-01]
F16F 15/1236
. . . . . .
{resulting in a staged spring characteristic, e.g. with multiple intermediate plates} [2013-01]
F16F 15/12366
. . . . . . .
{acting on multiple sets of springs} [2013-01]
F16F 15/12373
. . . . . . . .
{the sets of springs being arranged at substantially the same radius} [2013-01]
F16F 15/1238
. . . . .
{with pre-damper, i.e. additional set of springs between flange of main damper and hub} [2013-01]
F16F 15/12386
. . . . . .
{Pre-damper cage construction} [2013-01]
F16F 15/12393
. . . . . .
{pre-damper springs are of non-wound type, e.g. leaf springs} [2013-01]
F16F 15/124
. . . .
Elastomeric springs (F16F 15/123, {F16F 15/127} take precedence) [2013-01]
F16F 15/1245
. . . . .
{Elastic elements arranged between substantially-radial walls of two parts rotatable with respect to each other, e.g. between engaging teeth} [2013-01]
F16F 15/126
. . . . .
consisting of at least one annular element surrounding the axis of rotation [2013-01]
F16F 15/127
. . . .
using plastics springs combined with other types of springs [2013-01]
F16F 15/129
. . .
characterised by friction-damping means ({F16F 15/1202, F16F 15/1238} , F16F 15/131 take precedence) [2013-01]
F16F 15/1292
. . . .
{characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates} [2013-01]
F16F 15/1295
. . . .
{characterised by means for interconnecting driven plates and retainer, cover plates} [2013-01]
F16F 15/1297
. . . .
{Overload protection, i.e. means for limiting torque} [2013-01]
F16F 15/131
. . .
the rotating system comprising two or more gyratory masses [2013-01]
F16F 15/13107
. . . .
{for damping of axial or radial, i.e. non-torsional vibrations} [2013-01]
F16F 15/13114
. . . .
{characterised by modifications for auxiliary purposes, e.g. provision of a timing mark} [2013-01]
F16F 15/13121
. . . .
{characterised by clutch arrangements, e.g. for activation; integrated with clutch members, e.g. pressure member} [2013-01]
F16F 15/13128
. . . .
{the damping action being at least partially controlled by centrifugal masses (flywheels characterised by means to vary the moment of inertia F16F 15/31)} [2013-01]
F16F 15/13135
. . . . .
{simple connection or disconnection of members at speed} [2013-01]
F16F 15/13142
. . . .
{characterised by the method of assembly, production or treatment (F16F 15/13114 takes precedence)} [2013-01]
F16F 15/1315
. . . . .
{Multi-part primary or secondary masses, e.g. assembled from pieces of sheet steel} [2013-01]
F16F 15/13157
. . . .
{with a kinematic mechanism or gear system, e.g. planetary (F16F 15/13128 takes precedence)} [2013-01]
F16F 15/13164
. . . .
{characterised by the supporting arrangement of the damper unit} [2013-01]
F16F 15/13171
. . . . .
{Bearing arrangements (F16F 15/13192 takes precedence)} [2013-01]
F16F 15/13178
. . . . . .
{comprising slide bearings} [2013-01]
F16F 15/13185
. . . . .
{Bolting arrangements (F16F 15/13171 takes precedence)} [2013-01]
F16F 15/13192
. . . . .
{Thermal shielding} [2013-01]
F16F 15/133
. . . .
using springs as elastic members, e.g. metallic springs [2013-01]
F16F 15/1331
. . . . .
{C-shaped springs} [2013-01]
F16F 15/1332
. . . . . .
{disposed around axis of rotation} [2013-01]
F16F 15/1333
. . . . .
{Spiral springs, e.g. lying in one plane, around axis of rotation} [2013-01]
F16F 15/1335
. . . . .
{Folded springs, i.e. made of band-like material folded in an enclosing space} [2013-01]
F16F 15/1336
. . . . .
{Leaf springs, e.g. radially extending} [2013-01]
F16F 15/1337
. . . . .
{Torsional springs, e.g. torsion bar or torsionally-loaded coil springs} [2013-01]
F16F 15/1338
. . . . .
{Motion-limiting means, e.g. means for locking the spring unit in pre-defined positions (F16F 15/13128 takes precedence)} [2013-01]
F16F 15/134
. . . . .
Wound springs {(F16F 15/1333, F16F 15/1337, F16F 15/137 take precedence)} [2013-01]
F16F 15/13407
. . . . . .
{Radially mounted springs} [2013-01]
F16F 15/13415
. . . . . .
{characterised by the dimension or shape of spring-containing windows} [2013-01]
F16F 15/13423
. . . . . . .
{Disposition of material for damping or avoiding wear} [2013-01]
F16F 15/1343
. . . . . .
{characterised by the spring mounting (F16F 15/13407, F16F 15/13415 take precedence)} [2013-01]
F16F 15/13438
. . . . . . .
{End-caps for springs} [2013-01]
F16F 15/13446
. . . . . . . .
{having internal abutment means} [2013-01]
F16F 15/13453
. . . . . . .
{Additional guiding means for springs} [2013-01]
F16F 15/13461
. . . . . . .
{Set of springs, e.g. springs within springs} [2013-01]
F16F 15/13469
. . . . . .
{Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations} [2013-01]
F16F 15/13476
. . . . . . .
{resulting in a staged spring characteristic, e.g. with multiple intermediate plates} [2013-01]
F16F 15/13484
. . . . . . . .
{acting on multiple sets of springs} [2013-01]
F16F 15/13492
. . . . . . . . .
{the sets of springs being arranged at substantially the same radius} [2013-01]
F16F 15/136
. . . . .
Plastics springs, e.g. made of rubber (F16F 15/134, {F16F 15/137} take precedence) [2013-01]
F16F 15/137
. . . . .
the elastic members consisting of two or more springs of different kinds, {e.g. elastomeric members and wound springs} [2013-01]
F16F 15/139
. . . .
characterised by friction-damping means {(F16F 15/13128 takes precedence)} [2013-01]
F16F 15/1392
. . . . .
{characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates} [2015-10]
F16F 15/1395
. . . . .
{characterised by main friction means acting radially outside the circumferential lines of action of the elastic members} [2013-01]
F16F 15/1397
. . . . .
{Overload protection, i.e. means for limiting torque} [2013-01]
F16F 15/14
. .
using masses freely rotating with the system, {i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers (compensation of inertia forces F16F 15/22; weights for balancing rotating bodies F16F 15/32)} [2017-01]
F16F 15/1407
. . .
{the rotation being limited with respect to the driving means} [2013-01]
F16F 15/1414
. . . .
{Masses driven by elastic elements (F16F 15/145, F16F 15/1464 take precedence)} [2013-01]
F16F 15/1421
. . . . .
{Metallic springs, e.g. coil or spiral springs} [2013-01]
F16F 15/1428
. . . . . .
{with a single mass} [2013-01]
F16F 15/1435
. . . . .
{Elastomeric springs, i.e. made of plastic or rubber} [2013-01]
F16F 15/1442
. . . . . .
{with a single mass} [2013-01]
F16F 15/145
. . . .
{Masses mounted with play with respect to driving means thus enabling free movement over a limited range} [2013-01]
F16F 15/1457
. . . . .
{Systems with a single mass} [2013-01]
F16F 15/1464
. . . .
{Masses connected to driveline by a kinematic mechanism or gear system (F16F 15/145 takes precedence)} [2013-01]
F16F 15/1471
. . . . .
{with a kinematic mechanism, i.e. linkages, levers} [2013-01]
F16F 15/1478
. . . . .
{with a planetary gear system} [2013-01]
F16F 15/1485
. . .
{the rotation being unlimited with respect to driving means (with a fluid connection between inertia member and rotating driving means F16F 15/167)} [2013-01]
F16F 15/1492
. . . .
{with a dry-friction connection} [2013-01]
F16F 15/16
. .
using a fluid {or pasty material}(F16F 9/53, F16F 15/13157 take precedence; devices connecting input and output members F16D) [2013-01]
F16F 15/161
. . .
{characterised by the fluid damping devices, e.g. passages, orifices (F16F 15/162 takes precedence)} [2013-01]
F16F 15/162
. . .
{with forced fluid circulation} [2013-01]
F16F 15/163
. . .
{fluid acting as a lubricant} [2013-01]
F16F 15/164
. . .
{characterised by manufacturing, e.g. assembling or testing procedures} [2013-01]
F16F 15/165
. . .
{Sealing arrangements} [2013-01]
F16F 15/167
. . .
having an inertia member, e.g. ring [2013-01]
F16F 15/173
. . . .
provided within a closed housing {(F16F 15/36 takes precedence)} [2013-01]
F16F 15/18
. .
using electric, {magnetic or electromagnetic} means ({suppression of vibrations of rotating systems by use of non-rotating magnetic or electromagnetic means F16F 15/03;} dynamo-electric devices H02K; {control effected upon generator excitation circuit to reduce harmful effects of overloads or transients H02P 9/10}) [2013-01]
F16F 15/20
.
Suppression of vibrations of rotating systems by favourable grouping or relative arrangements of the moving members of the system or systems {(F16F 15/24 takes precedence)} [2013-01]
F16F 15/22
.
Compensation of inertia forces {(suppression of vibrations of rotating systems by favourable grouping or relative arrangements of the moving members of the system or systems F16F 15/20, counterweights F16F 15/28; correcting-weights for balancing rotating bodies F16F 15/32)} [2013-01]
F16F 15/223
. .
{Use of systems involving rotary unbalanced masses where the phase-angle of masses mounted on counter-rotating shafts can be varied (generation of mechanical vibrations per se with such systems B06B 1/166)} [2013-01]
F16F 15/226
. .
{in star engine arrangements} [2013-01]
F16F 15/24
. .
of crankshaft systems by particular disposition of cranks, pistons, or the like {(shape of crankshafts or eccentric-shafts having regard to balancing F16C 3/20)} [2013-01]
F16F 15/26
. .
of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system {, i.e. masses connected through a kinematic mechanism or gear system (F16F 15/226 takes precedence)} [2017-08]
F16F 15/261
. . .
{where masses move linearly} [2013-01]
F16F 15/262
. . .
{Masses attached to pinions, camshafts or driving shafts for auxiliary equipment, e.g. for an oil pump} [2017-05]
F16F 15/264
. . .
{Rotating balancer shafts (F16F 15/262 takes precedence)} [2013-01]
F16F 15/265
. . . .
{Arrangement of two or more balancer shafts (F16F 15/267 takes precedence)} [2013-01]
F16F 15/267
. . . .
{characterised by bearing support of balancer shafts; Lubrication arrangements} [2013-01]
F16F 15/268
. . . .
{Hollow shafts} [2013-01]
F16F 15/28
.
Counterweights, {i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft (rotating balancer shafts F16F 15/264; correcting-weights for balancing rotating bodies F16F 15/32)}; Attaching or mounting same [2013-01]
F16F 15/283
. .
{for engine crankshafts} [2013-01]
F16F 15/286
. . .
{Adjustable weights} [2013-01]
F16F 15/30
.
Flywheels (F16F 15/16, F16F 15/28 take precedence; suppression of vibrations in rotating systems using elastic members or friction-damping members moving with the system, {i.e. split flywheels or single masses connected to a hub by elastic members or friction-damping members} F16F 15/12; rotary-body aspects in general F16C 13/00, F16C 15/00) [2013-01]
F16F 15/302
. .
{comprising arrangements for cooling or thermal insulation} [2013-01]
F16F 15/305
. .
made of plastics, e.g. fibre reinforced plastics [FRP] {, i.e. characterised by their special construction from such materials} [2024-01]
F16F 15/31
. .
characterised by means for varying the moment of inertia [2013-01]
F16F 15/315
. .
characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft (F16F 15/31 takes precedence) [2013-01]
F16F 15/3153
. . .
{Securing inertia members to the shafts} [2013-01]
F16F 15/3156
. . .
{Arrangement of the bearings} [2013-01]
F16F 15/32
.
Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels {(suppression of vibrations in rotating systems by using freely rotating masses F16F 15/14; compensation of inertia forces F16F 15/22; compensating unbalance for testing purposes G01M 1/30)} [2013-01]
F16F 15/322
. .
{the rotating body being a shaft (F16F 15/34, F16F 15/36 take precedence)} [2013-01]
F16F 15/324
. .
{the rotating body being a vehicle wheel (F16F 15/36 takes precedence; tyre parts or constructions not otherwise provided for B60C 19/00)} [2013-01]
F16F 15/326
. . .
{specially adapted for attachment to spokes} [2013-01]
F16F 15/328
. . .
{Multiple weights on adhesive strip} [2013-01]
​
F16F 15/34
. .
Fastening arrangements therefor [2013-01]
NOTE

F16F 15/345
. . .
{specially adapted for attachment to a vehicle wheel} [2017-05]
F16F 15/36
. .
operating automatically {, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved (damping vibrations of washing machines by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets D06F 37/245)} [2017-08]
F16F 15/363
. . .
{using rolling bodies, e.g. balls free to move in a circumferential direction} [2013-01]
F16F 15/366
. . .
{using fluid or powder means, i.e. non-discrete material} [2013-01]
F16F 2222/00
Special physical effects, e.g. nature of damping effects [2013-01]
F16F 2222/02
.
temperature-related (F16F 2228/002 takes precedence) [2013-01]
F16F 2222/025
. .
Cooling [2013-01]
F16F 2222/04
.
Friction [2013-01]
F16F 2222/06
.
Magnetic or electromagnetic [2013-01]
F16F 2222/08
.
Inertia [2013-01]
F16F 2222/10
.
Adhesion [2013-01]
F16F 2222/12
.
Fluid damping [2013-01]
F16F 2222/123
. .
decreasing with increasing flow [2013-01]
F16F 2222/126
. .
using gases [2013-01]
F16F 2222/14
.
superconducting [2013-01]
F16F 2224/00
Materials; Material properties [2013-01]
F16F 2224/005
.
Combined materials of same basic nature but differing characteristics [2013-01]
F16F 2224/02
.
solids [2013-01]
F16F 2224/0208
. .
Alloys [2013-01]
F16F 2224/0216
. .
bimetallic [2013-01]
F16F 2224/0225
. .
Cellular, e.g. microcellular foam [2017-08]
F16F 2224/0233
. .
deforming plastically in operation [2013-01]
F16F 2224/0241
. .
Fibre-reinforced plastics [FRP] [2013-01]
F16F 2224/025
. .
Elastomers [2013-01]
F16F 2224/0258
. .
Shape-memory metals, e.g. Ni-Ti alloys [2013-01]
F16F 2224/0266
. .
porosity [2013-01]
F16F 2224/0275
. .
Ceramics [2013-01]
F16F 2224/0283
. .
piezoelectric; electro- or magnetostrictive [2013-01]
F16F 2224/0291
. .
PTFE [2013-01]
F16F 2224/04
.
Fluids [2013-01]
F16F 2224/041
. .
Dilatant [2013-01]
F16F 2224/043
. .
electrorheological [2013-01]
F16F 2224/045
. .
magnetorheological [2013-01]
F16F 2224/046
. .
pneumatic [2013-01]
F16F 2224/048
. .
High viscosity, semi-solid pastiness (F16F 2224/041 takes precedence) [2013-01]
F16F 2226/00
Manufacturing; Treatments [2013-01]
F16F 2226/02
.
Surface treatments [2013-01]
F16F 2226/023
. .
by laser or similar treatment by rays [2013-01]
F16F 2226/026
. .
low-friction [2013-01]
F16F 2226/04
.
Assembly or fixing methods; methods to form or fashion parts [2013-01]
F16F 2226/041
. .
Clipping [2013-01]
F16F 2226/042
. .
Gluing [2013-01]
F16F 2226/044
. .
Snapping [2013-01]
F16F 2226/045
. .
Press-fitting [2013-01]
F16F 2226/047
. .
Sheet-metal stamping [2013-01]
F16F 2226/048
. .
Welding [2013-01]
F16F 2228/00
Functional characteristics, e.g. variability, frequency-dependence [2013-01]
F16F 2228/001
.
Specific functional characteristics in numerical form or in the form of equations [2013-01]
F16F 2228/002
. .
Temperature [2013-01]
F16F 2228/004
. .
Force or pressure [2013-01]
F16F 2228/005
. .
Material properties, e.g. moduli [2013-01]
F16F 2228/007
. . .
of solids, e.g. hardness [2013-01]
F16F 2228/008
. . .
of semi-solids or fluids, e.g. viscosity [2013-01]
F16F 2228/04
.
Frequency effects [2013-01]
F16F 2228/06
.
Stiffness [2013-01]
F16F 2228/063
. .
Negative stiffness [2013-01]
F16F 2228/066
. .
Variable stiffness [2013-01]
F16F 2228/08
.
pre-stressed [2013-01]
F16F 2228/10
.
with threshold or dead zone [2013-01]
F16F 2228/12
.
degressive [2013-01]
F16F 2228/14
.
progressive [2013-01]
F16F 2230/00
Purpose; Design features [2013-01]
F16F 2230/0005
.
Attachment, e.g. to facilitate mounting onto confer adjustability [2013-01]
F16F 2230/0011
.
Balancing, e.g. counterbalancing to produce static balance [2013-01]
F16F 2230/0017
.
Calibrating [2013-01]
F16F 2230/0023
.
protective [2013-01]
F16F 2230/0029
.
Location, co-location [2013-01]
F16F 2230/0035
.
Gripping [2013-01]
F16F 2230/0041
.
Locking; Fixing in position [2013-01]
F16F 2230/0047
.
Measuring, indicating [2013-01]
F16F 2230/0052
.
Physically guiding or influencing [2013-01]
F16F 2230/0058
. .
using inserts or exterior elements, e.g. to affect stiffness [2013-01]
F16F 2230/0064
. .
using a cam [2013-01]
F16F 2230/007
. .
with, or used as an end stop or buffer; Limiting excessive axial separation [2013-01]
F16F 2230/0076
. .
Pivoting [2013-01]
F16F 2230/0082
.
Dimensional tolerances, e.g. play between mechanical elements [2013-01]
F16F 2230/0088
.
Timing [2013-01]
F16F 2230/0094
.
Magnifying a physical effect [2013-01]
F16F 2230/02
.
Surface features, e.g. notches or protuberances [2013-01]
F16F 2230/04
.
Lubrication [2013-01]
F16F 2230/06
.
Fluid filling or discharging [2013-01]
F16F 2230/08
.
Sensor arrangement [2013-01]
F16F 2230/10
.
Enclosure elements, e.g. for protection [2013-01]
F16F 2230/105
. .
Flexible, e.g. bellows or bladder [2013-01]
F16F 2230/12
.
Gas generation, e.g. by mixing of chemicals [2013-01]
F16F 2230/14
.
Ball joints; Spherical support elements [2013-01]
F16F 2230/16
.
used in a strut, basically rigid [2013-01]
F16F 2230/18
.
Control arrangements [2013-01]
F16F 2230/183
. .
fluid actuated [2013-01]
F16F 2230/186
. .
with manual adjustments [2013-01]
F16F 2230/20
.
Location of equilibration chamber [2013-01]
F16F 2230/22
.
Pumps [2013-01]
F16F 2230/24
.
Detecting or preventing malfunction, e.g. fail safe [2013-01]
F16F 2230/26
.
Air gap [2013-01]
F16F 2230/28
.
Inclination of a suspension element [2013-01]
F16F 2230/30
.
Sealing arrangements [2013-01]
F16F 2230/32
.
Modular design [2013-01]
F16F 2230/34
.
Flexural hinges [2013-01]
F16F 2230/36
.
Holes, slots or the like [2013-01]
F16F 2230/38
.
Off-centre positioning [2013-01]
F16F 2230/40
.
Multi-layer [2013-01]
F16F 2230/42
.
Multiple pistons [2013-01]
F16F 2230/46
.
Maintenance [2013-01]
F16F 2230/48
.
Thermal insulation [2013-01]
F16F 2232/00
Nature of movement [2013-01]
F16F 2232/02
.
Rotary [2013-01]
F16F 2232/04
.
Rotary-to-translation conversion [2013-01]
F16F 2232/06
.
Translation-to-rotary conversion [2013-01]
F16F 2232/08
.
Linear [2013-01]
F16F 2234/00
Shape [2013-01]
F16F 2234/02
.
cylindrical [2013-01]
F16F 2234/04
.
conical [2013-01]
F16F 2234/06
.
plane or flat [2013-01]
F16F 2234/08
.
spherical [2013-01]
F16F 2236/00
Mode of stressing of basic spring or damper elements or devices incorporating such elements [2013-01]
F16F 2236/02
.
the stressing resulting in flexion of the spring [2013-01]
F16F 2236/022
. .
of membrane-type springs [2013-01]
F16F 2236/025
. .
radial flexion of ring-type springs [2013-01]
F16F 2236/027
. .
of strip- or leg-type springs [2013-01]
F16F 2236/04
.
Compression [2013-01]
F16F 2236/045
. .
the spring material being generally enclosed [2013-01]
F16F 2236/06
.
Tension [2013-01]
F16F 2236/08
.
Torsion [2013-01]
F16F 2236/085
. .
the spring being annular [2013-01]
F16F 2236/10
.
Shear [2013-01]
F16F 2236/103
. .
linear [2013-01]
F16F 2236/106
. .
rotational [2013-01]
F16F 2236/12
.
loaded in combined stresses [2013-01]
F16F 2236/123
. .
loaded in compression and shear [2013-01]
F16F 2236/126
. . .
Neidhart-type rubber springs [2013-01]
F16F 2238/00
Type of springs or dampers [2013-01]
F16F 2238/02
.
Springs [2013-01]
F16F 2238/022
. .
leaf-like, e.g. of thin, planar-like metal [2013-01]
F16F 2238/024
. .
torsional [2013-01]
F16F 2238/026
. .
wound- or coil-like [2013-01]
F16F 2238/028
. . .
Winding direction thereof [2013-01]
F16F 2238/04
.
Damper [2013-01]
F16F 2238/045
. .
Lead shear damper [2013-01]