Method and apparatus for controlling the tension of a power cord of a self-propelled robot
US5502358A · kind A · utility
25Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2200/40
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A self-propelled robot includes an electrical cord mounted on a spool for being drawn-in or drawn-out. A sensor senses a rate at which the cord is drawn in or drawn out and actuates a motor connected to the spool for applying a rotary force to the spool to control the cord tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.