Central vacuum cleaner control, unit and system with contaminant sensor

A central vacuum cleaning system has a central vacuum unit with a motor , a motor compartment , and a vacuum chamber . The system also has a control circuit for controlling power to the motor , and one or more airborne contaminant sensors for sensing contaminants within the system . The sensors may...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Cunningham, J. Vern, Muirhead, Allen D
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
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