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US 9,155,437 B2Granted
Suction cleaner
AssigneeTechtronic Floor Care Technology Limited
InventorsThomas Williams, Richard David Waters
Life of this patent
Estimating the term…
Abstract
A suction cleaner comprising a source of suction, for creating a suction airflow and a separator upstream of the source of suction, for separating and retaining entrained matter from the suction airflow, wherein the separator is adapted for separation of wet material from the suction airflow, the cleaner has a reservoir for liquid and there is a liquid delivery device for delivering the liquid into the suction airflow which enters the separator.
Claims22
A suction cleaner comprising:
- a source of suction for creating a suction airflow;
- a separator upstream of the source of suction for separating and retaining entrained matter from the suction airflow;
- wherein the separator is adapted for separation of wet material from the suction airflow;
- a reservoir for a liquid;
- and
- a liquid delivery device for delivering the liquid into the suction airflow which enters the separator, wherein the suction cleaner is adapted for operation with an alternative separator for separation of dry material, and further comprising interlock means for preventing operation of the liquid delivery device when operating with the alternative separator.
3 more elements
A suction cleaner comprising:
- a source of suction for creating a suction airflow;
- a separator upstream of the source of suction for separating and retaining entrained matter from the suction airflow, the separator including a cyclonic portion and a settling chamber, through which the suction airflow passes successively, wherein the settling chamber portion of the separator is disposed interiorly of the cyclonic portion;
- wherein the separator is adapted for separation of wet material from the suction airflow;
- a reservoir for a liquid;
- a liquid delivery device for delivering the liquid into the suction airflow which enters the separator;
- and
- a grille formation having a plurality of circumferentially spaced vanes, through which the suction airflow passes inwardly from the cyclonic portion to the settling chamber portion.
4 more elements
A suction cleaner comprising
- a source of suction for creating a suction airflow;
- a separator upstream of the source of suction for separating and retaining entrained matter from the suction airflow;
- a reservoir for liquid;
- and
- a liquid delivery device operable selectively to deliver the liquid to one and only one of the suction airflow upstream of the separator or to one of a surface-cleaning head or tool connected to the cleaner at any given time.
2 more elements
A suction cleaner comprising;
- a source of suction for creating a suction airflow;
- a separator selectively removable from the air cleaner, the separator, when fitted to the cleaner registers with an outlet of a suction airflow duct of the cleaner, the separator operable for separating and retaining entrained wet material from the suction airflow, the separator having an inlet for the suction airflow and an outlet for connection to the source of suction;
- wherein the separator has an internal passageway extending from the inlet of the separator to a point higher in the separator than is the inlet, in use.
Dependencies are inferred from the claim text.