Electric vacuum cleaning apparatus
US10111568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2015 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC —)General
Abstract
An electric vacuum cleaning apparatus including an autonomous robotic vacuum cleaner that autonomously moves between surfaces to be cleaned and collects dust and a station fluidly connectable to the autonomous robotic vacuum cleaner. The autonomous robotic vacuum cleaner includes: a container body accumulating collected dust, the container body including: a bottom wall including a disposal port; and a disposal lid opening and closing the disposal port. The station unit includes: a dust transfer pipe connected to the disposal port; a secondary dust container accumulating dust; and a secondary electric blower that generates negative suction pressure in the dust transfer pipe via the secondary dust container. At least one irregularly shaped ventilation groove that causes air to flow below the dust within the container body by the negative pressure generated by the secondary electric blower is provided to the inner surface of the bottom wall of the container body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.