Miniature sounder with multi-part tuned cavities
US4409588A · kind A · utility
5Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Mar 10, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K9/13
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A miniature sounder having a diaphragm closing one end of a tuned chamber. The other end of the chamber communicates with the interior of a tuned housing through which an open-ended enclosure extends. The oscillating frequency of the diaphragm. The housing and enclosure are tuned to resonate at the desired frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.