IPC 7 English version F16F 11/00-F16F 103:00

F16F01100-F16F10300

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

F 16

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

F 16 F

SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION

11/

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

13/

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

13/

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

13/

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

13/

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/

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/

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/

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

13/

Units of the bushing type [6]

13/

specially adapted for receiving axial loads [6]

13/

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/

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

13/

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

13/

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/

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

13/

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

13/

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/

Suppression 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/

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/

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

15/

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

15/

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/

with rubber springs

15/

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/

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/

using freely-swinging masses rotating with the system

15/

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/

using electric means (dynamo-electric devices H02K)

15/

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

15/

Compensation of inertia forces

15/

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

15/

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

15/

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

15/

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/

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/

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

15/

Fastening arrangements therefor [5]

15/

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:

Serial arrangement of gyratory masses [6]

103:

Parallel arrangement of gyratory masses [6]

F16F - F16F 9/58