Electronically controlled siren
US12240375B2 · kind B2 · utility
0Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2022 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Dec 22, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q5/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronically controlled motor driven siren. The siren is electronically controlled to generate different sound profiles, while having advantages of a motor driven mechanical siren. In some embodiments, the siren is part of a system of multiple sirens. The phases of the rotors of the sirens of the system can be electronically controlled to generate different multi-siren combined sound profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.