Cam operated inverter bypass safety switch
USRE40161E1 · kind E1 · reissue
5Cited by
24References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2000 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Feb 15, 2020 |
Classification
- Technology area (CPC —)General
Abstract
An inverter by pass safety switch for rerouting electrical power either through or around AC variable frequency inverter drives during electrical disturbances, thus allowing a motor to continue operation. The switch works in a mechanical fashion, and comprises a contact block containing electrical contacts and cams operably connected to the contacts and mounted on a shaft that can be turned by an operator. The cams are shaped and mounted on the shaft in such a way to provide a desired switching pattern when the shaft is manually rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.