Robotic floor cleaning device with expandable wheels
US10214050B1 · kind B1 · utility
3Cited by
27References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 2, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mobile robotic floor-cleaning device with wheels that may be expanded or contracted to suit various needs by rotating an inner shaft within the main housing of each wheel relative to the main housing. A series of rollers form the circumference of the wheels, and are connected to the inner shaft via a set of spokes. Rotation of the inner shaft relative to the main housing causes the spokes to pull the rollers in or push them out, changing the diameter and circumference of the wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.