(under subclass 572) Structures having means capable of movement relative to the rotor or its rotary shaft for damping torsional vibrations and/or smoothing out oscillations or speed variations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
589+, for counterbalanced pitmans and connecting rods.
594.5, for counterbalanced pedals for cranks.
603+, for counterbalanced cranks and wrist pins.
SEE OR SEARCH CLASS 73, Measuring and Testing,
514.12+, 514.14, 522, and 526 for dampening means peculiarly associated with a responsive mechanism.
188, Brakes,
266+, for a fluid-resistance brake or shock absorber of general utility.
310, Electrical Generator or Motor Structure,
93, for electromagnetic devices for damping the angular oscillations of a rotary shaft.
464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts,
51+, for a flexible coupling between a shaft and another member; and subclass 180 for shaft balancing or vibration damping involving modification of the shaft structure.
