Mechanism for suppressing bound of swingable elements on a key m

Details Mechanism for suppressing bound of swingable elements on a key m Mechanism for suppressing bound of swingable elements on a key m

1985-10-31

1988-08-02

Gellner, Michael L.

Music

Instruments

Stringed

84440, 267124, G10C 318

Patent

active

047607688

ABSTRACT:
In construction of a key musical instrument such as a piano, a swingable element such as a hammer is accompanied with a pneumatic damper having an air vent so that, when impulsive load is applied by motion of the swingable element, fluid viscous resistance caused by flow of air in the pneumatic damper well absorbs shock, thereby greatly suppressing undesirable bound of said swingable element on return to its initial rest position.

REFERENCES:
patent: 3175451 (1965-03-01), Klann
patent: 3899952 (1975-08-01), Regan
patent: 4121490 (1978-10-01), Deutsch
patent: 4152967 (1979-05-01), Barron

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