Helmholtz resonator type marine signal
US7360499B1 · kind B1 · utility
18Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Feb 16, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B45/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power efficient, acoustical Helmholtz resonator foghorn including a plurality of electrical emitters, some of which are redundant, arrayed at one end of a blocked tube with a plurality of exhaust ports located therein surrounded by a standoff tubular member. The foghorn tuned to provide a high pitch thus providing a compact horn having an acoustical path capable of producing an exceptional wavelength in a generally concentric horizontal sound propagation the horn configurable for use as either a one-half mile or two mile marine navigational aid for offshore structures, buoys, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.