(under the class definition) Device wherein a force tends to vibrate a first member, a second member contacts the first member, and the vibration is restrained or dissipated by a resistance to sliding between the surfaces of the members.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129, for a shock absorber with friction brakes operated upon the rise or fall or the vehicle body.
SEE OR SEARCH CLASS
73, Measuring and Testing,
514.12+, for fluid or fluent material dampening of an inertial member in an acceleration measuring apparatus and subclass 514.14 for vibration dampening in an inertial-type acceleration measuring apparatus.
267, Spring Devices,
9+, for a mechanical spring including a frictional vibration dampener and subclass 140.1 for a spring device including frictional energy absorbing means. 399, Electrophotography,
210, for damping or braking a slit exposure scanning carriage.
