using a fluid (F16F9/53, F16F15/13157 take precedence; devices connecting input and output members F16D)

Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion > Suppression of vibrations in rotating systems by making use of members moving with the system > using a fluid

Suppression of vibrations in systems ( ; vehicle seat suspension devices B60N2/50; ); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion ( ; testing static and dynamic balance of machines or structures G01M1/00) > Suppression of vibrations in rotating systems by making use of members moving with the system (by balancing F16F15/22 ; with flywheels acting variably or intermittently F16H ) > using a fluid (F16F9/53, F16F15/13157 take precedence; devices connecting input and output members F16D)