involving only straight-line movement of the effective parts

Full Title

Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium > using liquid only; using a fluid of which the nature is immaterial > Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect > involving only straight-line movement of the effective parts

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

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

Subclass:

SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION

Child Classifications

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• F16F 9/18 with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/22 with one or more cylinders, each having a single working space closed by a piston or plunger