Pianos playable in acoustic and silent modes

Details Pianos playable in acoustic and silent modes Pianos playable in acoustic and silent modes

2009-01-27

2010-11-02

Lockett, Kimberly R (Department: 2832)

Music

Instruments

Stringed

Reexamination Certificate

active

07825312

ABSTRACT:
A piano, playable in an acoustic mode and a silent mode, includes a series of keys, a series of key actions, and a series of rotatable hammers. Each key action is actuated by depression of a corresponding key. Each hammer defines a forward throw direction and has a corresponding string. The hammers are driven by corresponding key actions transferring forces from corresponding keys. The piano includes a hammer stopper system that has a blocking rail slidably disposed forward of the hammers. A linear actuator moves the blocking rail along a substantially linear path between a first position, allowing unobstructed movement of the hammers, and a second position blocking at least one hammer from striking its corresponding string. The linear actuator moves the blocking rail to the first position for acoustic play and to the second position for silent play.

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