DIFF Subgroup
F16F 9/08 in a chamber with a flexible wall
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium > using both gas and liquid > in a chamber with a flexible wall
CPC:
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium (F16F5/00 takes precedence; connection of valves to inflatable elastic bodies B60C29/00; ) > using both gas and liquid > in a chamber with a flexible wall
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- 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 since 1995 IPC+CPC Available in IPC and CPC
- 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 since 1995 IPC+CPC Available in IPC and CPC
- F16F 9/092 comprising a gas spring with a flexible wall provided between the tubes of a bitubular damper since 1995 IPC+CPC Available in IPC and CPC
- 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 since 1995 IPC+CPC Available in IPC and CPC