Method and apparatus for sound production
US4187635A · kind A · utility
Inventor
Key dates
| Filing date | Apr 3, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Apr 3, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K9/10
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.