Valve tuning system for the brass musical instruments
OwnerSatoshi Nakamurainventor
Life of this patent
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Abstract
A valve tuning system for a brass musical instrument having a single valve housing, a single valve body, which may be in several parts, a basic pipe and a plurality of by-pass pipes connected to the housing. A plurality of air-pipes or passages are formed in the valve body and a plurality of tuning keys are operable to move the valve body to a plurality of switch-over positions such that various combinations, or all, of the air-pipes and by-pass pipes may be connected in series with the basic instrument pipe to yield a temperament ratio without significant aberrations.
Claims12
A valve tuning system for brass musical instruments comprising a single valve housing, a valve body movable in said housing, a basic instrument pipe and a plurality of by-pass pipes connected to the housing, a plurality of air passages formed in the valve body, tuning means which comprises a plurality of separately actuable finger keys, and means connecting said tuning means to said valve body operable to move the valve body to a plurality of switchover positions such that various combinations of the by-pass pipes and air passages may be connected in series with the basic instrument pipe.
A valve tuning system for brass musical instruments, which comprises:
- a valve housing;
- a valve body movable in said housing;
- a basic instrument pipe and at least three by-pass pipes connected to said housing, each of said by-pass pipes being of a fixed predetermined non-adjustable length;
- a plurality of air passages formed in said valve body;
- manually operable means for tuning said instrument;
- and
- means connecting said tuning means to said valve body for moving same to one selectable position from a plurality of switchover positions each of which defines a particular series connection between said by-pass pipes, said air passages and said basic instrument pipe.
Dependencies are inferred from the claim text.