Transporter motor alarm
US7592900B2 · kind B2 · utility
37Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2006 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Mar 14, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2270/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An audio alarm for a transporter having an electric motor. The alarm has a signal generator for generating a signal within the audible frequency range and a modulator for modulating a current that is applied to the electric motor in accordance with the signal generated by the signal generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.