Abstract: A muter configured to be placed beneath the soundboard of a piano (in the case of a grand piano) in order to attenuate the downward transmission of sound. The muter employs blocks of acoustic foam, shaped to frictionally engage the structural elements of the piano in order to retain the muter within the piano. The muter is easily installed and removed. A version configured for use with an upright piano is also disclosed.
Abstract: An acoustic member mounting means for use in typewriters and similar machines wherein the mounting means includes first and second vibration insulating means which prevents undesired sound waves from being generated in the acoustic member.
© 2024 Justia
