Safety drive circuit for pump motor
US5076761A · kind A · utility
101Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Jun 26, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0822
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC motor drive system for mechanically linking to a reciprocable pump, having safety circuits for disconnecting power from the system upon detection of excessive line voltage variations, excessive line current variations, excessive pressure demands, and electrical and mechanical faults which may occur in system operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.