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IPC 7
  F16F - F16F 9/58  
F16F01100-F16F10300
 

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING


F 16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL


F 16 FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION


11/

00Vibration-dampers or shock-absorbers working with both friction and a damping fluid


13/

00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F16F 5/00 takes precedence)

13/

02.damping by frictional contact between the spring and braking means (frictionally coacting wound springs F16F 3/06)

13/

04.comprising both a plastics spring and a damper, e.g. a friction damper  [6]

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)  [6]

13/

08...the plastics spring forming at least a part of the wall of the fluid chamber of the damper (F16F 13/20 to F16F 13/24 take precedence)  [6]

13/

10....the wall being at least in part formed by a flexible membrane or the like (F16F 13/12 to F16F 13/18 take precedence)  [6]

13/

12....Single chamber dampers (F16F 13/14 takes precedence)  [6]

13/

14....Units of the bushing type  [6]

13/

16.....specially adapted for receiving axial loads  [6]

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 13/14 takes precedence)  [6]

13/

20...characterised by comprising also a pneumatic spring (F16F 13/22 takes precedence)  [6]

13/

22...characterised by comprising also a dynamic damper (dampers using inertia effect per se F16F 7/10)  [6]

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  [6]

13/

26..characterised by adjusting or regulating devices responsive to exterior conditions  [6]

13/

28...specially adapted for units of the bushing type (F16F 13/30 takes precedence)  [6]

13/

30...comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids  [6]

Note

 In this group, it is desirable to add the indexing codes of groups F16F 101:00 or F16F 103:00. The indexing codes should be unlinked.  [6]


15/

00Suppression of vibrations in systems (vehicle seat suspension devices B60N 2/50); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion (testing static or dynamic balance of machines or structures G01M 1/00)

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 system (layered products B32B; suppression of vibration in ships B63)

15/

023..using fluid means  [6]

15/

027...comprising control arrangements  [6]

15/

03..using electromagnetic means (F16F 9/53 takes precedence)  [5]

15/

04..using elastic means (single elements or their attachment F16F 1/00 to F16F 13/00)  [2]

15/

06...with metal springs (with rubber springs also F16F 15/08)

15/

067....using only wound springs  [6]

15/

073....using only leaf springs  [6]

15/

08...with rubber springs

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)

15/

12..using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon (F16F 15/16 takes precedence)  [6]

15/

121...using springs as elastic members, e.g. metallic springs (F16F 15/131 takes precedence)  [6]

15/

123....Wound springs  [6]

15/

124....Plastics springs, e.g. made of rubber (F16F 15/123 takes precedence)  [6]

15/

126.....consisting of at least one annular element surrounding the axis of rotation  [6]

15/

127....using plastics springs combined with other types of springs  [6]

15/

129...characterised by friction-damping means (F16F 15/131 takes precedence)  [6]

15/

131...the rotating system comprising two or more gyratory masses  [6]

15/

133....using springs as elastic members, e.g. metallic springs  [6]

15/

134.....Wound springs  [6]

15/

136.....Plastics springs, e.g. made of rubber (F16F 15/134 takes precedence)  [6]

15/

137.....the elastic members consisting of two or more springs of different types  [6]

15/

139....characterised by friction-damping means  [6]

15/

14..using freely-swinging masses rotating with the system

15/

16..using a fluid (devices connecting input and output members F16D)

15/

167...having an inertia member, e.g. ring  [6]

15/

173....provided within a closed housing  [6]

15/

18..using electric means (dynamo-electric devices H02K)

15/

20.Suppression of vibrations of rotating systems by favourable grouping or relative arrangement of the moving members of the system or systems

15/

22.Compensation of inertia forces

15/

24..of crankshaft systems by particular disposition of cranks, pistons, or the like

15/

26..of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system

15/

28.Counterweights; Attaching or mounting same (for roll-type closures E06B 9/62)

15/

30.Flywheels (F16F 15/16 takes precedence; suppression of vibrations in rotating systems using elastic members or friction-damping members moving with the system F16F 15/12; rotary-body aspects in general F16C 13/00, F16C 15/00)  [6]

15/

305..made of plastics, e.g. fibre reinforced plastics (FRP)  [6]

15/

31..characterised by means for varying the moment of inertia  [6]

15/

315..characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft (F16F 15/31 takes precedence)  [6]

15/

32.Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels  [2,5]

15/

34..Fastening arrangements therefor  [5]

15/

36..operating automatically  [5]


Indexing scheme associated with group F16F 15/00, relating to the arrangement of two or more gyratory masses. The indexing codes should be unlinked.  [6]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


101:

00Serial arrangement of gyratory masses  [6]


103:

00Parallel arrangement of gyratory masses  [6]


  F16F - F16F 9/58   
 

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