Vibration-dampers or shock-absorbers working with both friction and a damping fluid
13
/
00
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F 16 F 5/00 takes precedence)
13
/
02
•
damping by frictional contact between the spring and braking means (frictionally coacting wound springs F 16 F 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 (F 16 F 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 (F 16 F 13/20 to F 16 F 13/24 take precedence) [6]
13
/
10
•
•
•
•
the wall being at least in part formed by a flexible membrane or the like (F 16 F 13/12 to F 16 F 13/18 take precedence) [6]
13
/
12
•
•
•
•
Single chamber dampers (F 16 F 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 (F 16 F 13/14 takes precedence) [6]
13
/
20
•
•
•
characterised by comprising also a pneumatic spring (F 16 F 13/22 takes precedence) [6]
13
/
22
•
•
•
characterised by comprising also a dynamic damper (dampers using inertia effect per seF 16 F 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 (F 16 F 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 F 16 F 101:00 or F 16 F 103:00. The indexing codes should be unlinked. [6]
15
/
00
Suppression of vibrations in systems (vehicle seat suspension devices
B 60 N 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 G 01 M 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 B 32 B; suppression of vibration in ships B 63)
15
/
023
•
•
using fluid means [6]
15
/
027
•
•
•
comprising control arrangements [6]
15
/
03
•
•
using electromagnetic means (F 16 F 9/53 takes precedence) [5]
with metal springs (with rubber springs also F 16 F 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 F 16 F 15/22; with flywheels acting variably or intermittently F 16 H)
15
/
12
•
•
using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon (F 16 F 15/16 takes precedence) [6]
15
/
121
•
•
•
using springs as elastic members, e.g. metallic springs (F 16 F 15/131 takes precedence) [6]
15
/
123
•
•
•
•
Wound springs [6]
15
/
124
•
•
•
•
Plastics springs, e.g. made of rubber (F 16 F 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 (F 16 F 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 (F 16 F 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 F 16 D)
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 H 02 K)
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
E 06 B 9/62)
15
/
30
•
Flywheels (F 16 F 15/16 takes precedence; suppression of vibrations in rotating systems using elastic members or friction-damping members moving with the system F 16 F 15/12; rotary-body aspects in general F 16 C 13/00, F 16 C 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 (F 16 F 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 F 16 F 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]
