Valve mechanism for musical instrument and brass instrument...

Details Valve mechanism for musical instrument and brass instrument... Valve mechanism for musical instrument and brass instrument...

2011-08-16

2011-08-16

Lockett, Kimberly R (Department: 2832)

Music

Instruments

Wind

Reexamination Certificate

active

07999164

ABSTRACT:
A valve mechanism for musical instrument is inserted between a mouthpiece and a bell. The valve mechanism includes: a main tube through which the mouthpiece and the bell directly communicate with each other; a bypass tube which takes a bypass route from the middle of the main tube and, when the changeover valve is operated, causes indirect communication of the main tube which is in direct communication before the operation of the changeover valve; a group of main valves; and a group of sub valves. Setting of the bypass tube to a length that allows for a note one octave lower than a note produced only by the main tube, which is producible when the main tube indirectly communicates via the bypass tube. As a result, a degree of freedom and reliability of musical performance are improved in a wide register with almost no change in weight, among many advantages.

REFERENCES:
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patent: 5052261 (1991-10-01), Lessen
patent: 6008444 (1999-12-01), Chesko et al.
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patent: 56-16196 (1981-02-01), None
patent: WO-2008/056752 (2008-05-01), None

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