The mechanism in a piano action used to mute or dampen a sustaining note, usually by means of felt contacting the string, tine or reed.
See Dampers (Rhodes)
See Dampers (Wurlitzer)
See Dampers (Acoustic Piano)
In a Hohner Clavinets and Pianets, the system of damping the sound works differently. See Yarn (Clavinet) and Sticky Pads (Pianet)