Cleaning implement for swimming pools
US4154680A · kind A · utility
69Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/1654
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus or implement for underwater cleaning of swimming pool bottoms and/or walls having a chassis with traction drive and a suction pump mounted on the chassis. A suction nozzle is connected to the suction side of the pump, for drawing in settled particles. A filter is connected to the pressure side of the pump for catching the particles. A controlled diving cell which is floodable and clearable in a controlled manner is arranged on the chassis for varying the buoyancy of the apparatus sufficiently to raise and lower it in the water. A brush with a particular bristle configuration may be mounted in the suction nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.