Swimming pool cleaner
US7213287B2 · kind B2 · utility
39Cited by
29References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2003 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Aug 10, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/1654
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self-propelled swimming pool cleaner which randomly covers the bottom of the pool. Water pumped from the bottom of the unit filters dirt carried thereby, then uses the pumped water to propel the device either forward or backward. A pivoted front axle causes the path of the unit to vary when changing from forward to backward so that the unit randomly covers the entire pool bottom. Spring loaded doors may be provided to allow water to exit when the unit is lifted out of the pool. A sealed motor unit has a metal portion to transfer heat from the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.