F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINEERING IN GENERAL
 F16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
 F16F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
 F16F 1/00
Springs (working with fluid F16F 5/00, F16F 9/00; clockwork springs G04B 1/14, G04B 17/04-G04B 17/10)
 F16F 1/02
·  made of steel or other material having low internal friction
 F16F 1/04
·  ·  Wound springs
 F16F 1/06
·  ·  ·  with turns lying in cylindrical surfaces
 F16F 1/08
·  ·  ·  with turns lying in mainly conical surfaces
 F16F 1/10
·  ·  ·  Spiral springs with turns lying substantially in plane surfaces
 F16F 1/12
·  ·  ·  Attachments or mountings
 F16F 1/14
·  ·  Torsion springs consisting of bars or tubes
 F16F 1/16
·  ·  ·  Attachments or mountings
 F16F 1/18
·  ·  Leaf springs
 F16F 1/20
·  ·  ·  with layers, e.g. anti-friction layers, or with rollers between the leaves
 F16F 1/22
·  ·  ·  with means for modifying the spring characteristic
 F16F 1/24
·  ·  ·  Lubrication; Covers, e.g. for retaining lubricant
 F16F 1/26
·  ·  ·  Attachments or mountings
 F16F 1/28
·  ·  ·  ·  comprising cylindrical metal pins pivoted in close-fitting sleeves
 F16F 1/30
·  ·  ·  ·  comprising intermediate pieces made of rubber or similar elastic material
 F16F 1/32
·  ·  Cup springs; Dished disc springs (diaphragms F16J 3/00)
 F16F 1/34
·  ·  Ring springs, i.e. annular bodies deformed radially due to axial load
 F16F 1/36
·  made of a material having high internal friction, e.g. rubber, plastic, cork, steel wool, compressed hair
 F16F 1/37
·  ·  of foam-like material, e.g. sponge rubber
 F16F 1/38
·  ·  with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
 F16F 1/40
·  ·  consisting of a stack of similar elements separated by non-elastic intermediate layers
 F16F 1/42
·  ·  characterised by the mode of stressing
 F16F 1/44
·  ·  ·  loaded mainly in compression
 F16F 1/46
·  ·  ·  loaded mainly in tension
 F16F 1/48
·  ·  ·  loaded mainly in torsion
 F16F 1/50
·  ·  ·  loaded mainly in shear
 F16F 1/52
·  ·  ·  loaded in combined stresses
 F16F 1/54
·  ·  ·  ·  loaded in compression and shear
 F16F 3/00
Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic (including fluid springs F16F 5/00, F16F 13/00)
 F16F 3/02
·  with springs made of steel or of other material having low internal friction
 F16F 3/04
·  ·  composed only of wound springs
 F16F 3/06
·  ·  ·  of which some are placed around others in such a way that they damp each other by mutual friction
 F16F 3/07
·  ·  combined with chambers filled with gas or liquid
 F16F 3/08
·  with springs made of a material having high internal friction, e.g. rubber
 F16F 3/10
·  ·  combined with springs made of steel or other material having low internal friction
 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
 F16F 6/00
Magnetic springs; Fluid magnetic springs
 F16F 7/00
Vibration-dampers; Shock-absorbers (using fluid F16F 5/00, F16F 9/00; specific for rotary systems F16F 15/10)
 F16F 7/02
·  with relatively-rotatable friction surfaces that are pressed together (one of the members being a spring F16F 13/02)
 F16F 7/04
·  ·  in the direction of the axis of rotation
 F16F 7/06
·  ·  in a direction perpendicular or inclined to the axis of rotation
 F16F 7/08
·  with friction surfaces rectilinearly movable along each other
 F16F 7/10
·  using inertia effect
 F16F 7/12
·  using plastic deformation of members
 F16F 7/14
·  of cable-support type, i.e. frictionally-engaged loop-forming cables
 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; door-operating appliances with fluid braking systems E05F)
 F16F 9/02
·  using gas only
 F16F 9/04
·  ·  in a chamber with a flexible wall
 F16F 9/06
·  using both gas and liquid
 F16F 9/08
·  ·  in a chamber with a flexible wall
 F16F 9/10
·  using liquid only; using a fluid of which the nature is immaterial
 F16F 9/12
·  ·  Devices with one or more rotary vanes turning in the fluid, any throttling effect being immaterial
 F16F 9/14
·  ·  Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
 F16F 9/16
·  ·  ·  involving only straight-line movement of the effective parts
 F16F 9/18
·  ·  ·  ·  with a closed cylinder and a piston separating two or more working spaces therein
 F16F 9/19
·  ·  ·  ·  ·  with a single cylinder
 F16F 9/20
·  ·  ·  ·  ·  with the piston-rod extending through both ends of the cylinder
 F16F 9/22
·  ·  ·  ·  with one or more cylinders, each having a single working space closed by a piston or plunger
 F16F 9/24
·  ·  ·  ·  ·  with a single cylinder and a single piston or plunger
 F16F 9/26
·  ·  ·  ·  ·  with two cylinders in line and with the two pistons or plungers connected together
 F16F 9/28
·  ·  ·  ·  ·  with two parallel cylinders and with the two pistons or plungers connected together
 F16F 9/30
·  with solid or semi-solid material, e.g. pasty masses, as damping medium
 F16F 9/32
·  Details
 F16F 9/34
·  ·  Special valve constructions (valves in general F16K); Shape or construction of throttling passages
 F16F 9/342
·  ·  ·  Throttling passages operating with metering pins
 F16F 9/346
·  ·  ·  Throttling passages in the form of slots arranged in cylinder walls
 F16F 9/348
·  ·  ·  Throttling passages in the form of annular discs operating in opposite directions
 F16F 9/36
·  ·  Special sealings, including sealings or guides for piston-rods (sealing of moving parts in general F16J 15/16-F16J 15/56)
 F16F 9/38
·  ·  Covers for protection or appearance
 F16F 9/40
·  ·  Arrangements for preventing froth
 F16F 9/42
·  ·  Cooling arrangements
 F16F 9/43
·  ·  Filling arrangements, e.g. for supply of gas
 F16F 9/44
·  ·  Means on or in the damper for manual or non-automatic adjustment; Such means combined with temperature correction (temperature correction only F16F 9/52)
 F16F 9/46
·  ·  ·  allowing control from a distance
 F16F 9/48
·  ·  Arrangements for providing different damping effects at different parts of the stroke
 F16F 9/49
·  ·  ·  Stops limiting fluid passage, e.g. hydraulic stops
 F16F 9/50
·  ·  Special means providing automatic adjustment
 F16F 9/52
·  ·  ·  in case of change of temperature (combined with external adjustment F16F 9/44)
 F16F 9/54
·  ·  Arrangements for attachment
 F16F 11/00
Vibration-dampers or shock-absorbers working with both friction and a damping fluid
 F16F 13/00
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F16F 5/00 takes precedence)
 F16F 13/02
·  damping by frictional contact between the spring and braking means (frictionally coacting wound springs F16F 3/06)
 F16F 15/00
Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
 F16F 15/02
·  Supression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system (layered products B32B; suppression of vibration in ships B63; testing dynamic balance with or without subsequent adjustment G01M)
 F16F 15/03
·  ·  using electromagnetic means
 F16F 15/04
·  ·  using elastic means (single elements or their attachment F16F 1/00-F16F 13/00)  [2]
 F16F 15/06
·  ·  ·  with metal springs (with rubber springs also F16F 15/08)
 F16F 15/08
·  ·  ·  with rubber springs
 F16F 15/10
·  Suppression of vibrations in rotating systems by making use of members moving with the system (by balancing F16F 15/22; with flywheels acting variably or intermittently F16H)
 F16F 15/12
·  ·  using elastic members or friction-damping members
 F16F 15/14
·  ·  using freely-swinging masses rotating with the system
 F16F 15/16
·  ·  using a fluid (devices connecting input and output members F16D)
 F16F 15/18
·  ·  using electric means (dynamo-electric devices H02K)
 F16F 15/20
·  Suppression of vibrations of rotating systems by favourable grouping or relative arrangement of the moving members of the system or systems
 F16F 15/22
·  Compensation of inertia forces
 F16F 15/24
·  ·  of crankshaft systems by particular disposition of cranks, pistons, etc.
 F16F 15/26
·  ·  of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system
 F16F 15/28
·  Counterweights; Attaching or mounting same
 F16F 15/30
·  Flywheels (rotary-body aspects in general F16C 13/00, F16C 15/00)
 F16F 15/32
·  Correcting-weights or equivalent means for balancing rotating bodies (balancing-weights for vehicle wheels B60B 13/00; machines for balancing G01M)  [2]