Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement

Official title: Counterweights, {i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft (rotating balancer shafts F16F15/264; correcting-weights for balancing rotating bodies F16F15/32)}; Attaching or mounting same

F16F15/28 (Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement) appears on 206 US grants and 165 published applications in this corpus.