CPC Subgroup
F16F 13/02 damping by frictional contact between the spring and braking means (frictionally coacting wound springs F16F3/06)
Full Title
Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs (F16F5/00, take precedence) > damping by frictional contact between the spring and braking means (frictionally coacting wound springs F16F3/06)