Thermally responsive control for a vacuum cleaner motor
US3984735A · kind A · utility
9Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1975 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Apr 2, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/66
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control unit for an electric motor in a vacuum cleaner which stops the motor when the motor temperature exceeds a certain level. The control unit is utilized with a vacuum cleaner having a low voltage circuit for controlling the motor speed and is simple and inexpensive, as well as safe in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.