Method for controlling twisting of pool cleaner power cable
US7621014B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/1654
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method is provided for removing undesired twists and loops in a power supply cable attached to a robotic swimming pool cleaner during the cleaner's pre-programmed movement over the bottom and/or side walls of the pool. An on-board electronic compass determines an initial reference directional heading of the pool cleaner and the subsequent true or actual directional heading of the pool cleaner is determined intermittently or continuously as the pool cleaner moves through the program cycle. The subsequent directional headings of the moving pool cleaner are compared to the reference directional heading to provide a cumulative positive or negative value. When the cumulative value indicates that one or more complete 360° turns have been made from the reference directional heading, a correction signal is generated for immediate or delayed transmission to the directional control means to turn the pool cleaner in a direction to remove any twists or loops that have formed in the power cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.