General purpose modular acoustic signal generator
US4602245A · kind A · utility
24Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1983 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Apr 29, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K9/122
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A general purpose modular acoustic signal generator includes an outer casing unit having a plurality of disengageably connected sections and an insert unit removably positioned in that outer casing unit. The insert unit has a piezoelectric acoustic generator disc mounted thereon and defines a Helmholtz resonator on each side of the acoustic generator disc. A single outer casing is usable with a plurality of different insert units so a single outer casing unit can be associated with a plurality of different Helmholtz resonators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.