Axial flow valve

Details Axial flow valve Axial flow valve

1979-09-11

1981-11-10

Franklin, Lawrence R.

Music

Instruments

Wind

G10D 904

Patent

active

042991560

ABSTRACT:
A rotary valve for selectively inserting and removing a slide loop from the sound path of a musical instrument is disclosed. The valve includes a rotor having two sound passages entending therethrough, which are no more than slightly curved. These passages align axially with the instrument's lead pipe, main bore, and slide loop ends so that a minimum of undesired harmonics are added to the tone of the instrument due to presence of the valve in the sound path.

REFERENCES:
patent: 455562 (1891-07-01), Gates
patent: 1703411 (1929-02-01), Steinmetz

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