Abstract
The following quote was obtained by the news editors from the background informa tion supplied by the inventors: “Various types of robotic surface cleaning appar atus are known. Robotic vacuum cleaner may have a docking station that charges t he robotic vacuum cleaner when the robotic vacuum cleaner is connected to the do cking station. Also, a docking station may have means to empty a dirt collection chamber of a robotic surface cleaning apparatus. “In addition, surface cleaning apparatus that use a cyclonic cleaning stage that comprises a plurality of cyclones in parallel are known.”
NETL
NSTL