Pool cleaning apparatus
US6965814B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Jun 15, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/1654
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for determining the effectiveness of the filtering and maneuverability of a robot for cleaning swimming pools, the robot includes a robot propelling motor, at least one water pump having an impeller and an impeller motor, a pool water inlet leading to a filter, a filtered water outlet, and a propelling mechanism for propelling the robot along the floor and/or walls of the swimming pool, the system comprising a computer for determining and setting an initial power to be supplied to the impeller motor, a first circuit for sensing the actual power supplied to the impeller motor during its operation, a second circuit for calculating the ratio between the set power and an instantaneous power supplied to said impeller motor, and a producer connected to the second circuit for producing an indication signal when the ratio exceeds a predetermined value. A controller for controlling the at least one impeller motor in consideration of the ratio; and a sensor for sensing the inclination of the floor and/or wall on which the robot is propelled are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.