High-pressure cleaning apparatus
US6062822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Jan 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a high-pressure cleaning apparatus comprising an electric motor, a high-pressure pump driven by the electric motor, and an automatic switching-off means for the electric motor including a switch actuatable by an actuating element moveable in dependence upon the pressure or the flow of the liquid being conveyed by the high-pressure pump, in order to reduce the switching expenditure it is proposed that a switching-off element which is manually actuatable on the high-pressure cleaning apparatus be associated with the same switch so that in one position of the switching-off element, the switch cuts off the power supply to the electric motor independently of the pressure or the flow of the liquid being conveyed, whereas in the other position the switch is actuatable by the actuating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.