Signals and indicators – Navigation devices
Patent
1978-04-03
1980-02-12
Tomsky, Stephen J.
Signals and indicators
Navigation devices
46182, 46189, 84409, 84402, 116168, 181138, A63H 500, G10D 1308, G08B 100
Patent
active
041876350
ABSTRACT:
An apparatus and method for producing sound, particularly unusual sound effects, wherein the apparatus comprises at least one diaphragm and a spring attached to the diaphragm, having a lowest resonance frequency less than 18 hertz. The apparatus includes a resonator affixed to the diaphragm.
According to the method of the invention, sounds are produced on an instrument having a spring and a diaphragm connected to the spring by exciting an echophone frequency of the spring by either activating longitudinal motion of the spring, jerking at least one end of the spring in a longitudinal direction, longitudinally displacing and releasing a section of the spring, and moving at least one end of the spring longitudinally in a rhythmic motion to excite an echophone frequency.
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Jager Melvin F.
Ropski Gary M.
Tomsky Stephen J.
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