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US 2007/0180649 A1Published application
Floor cleaning apparatus with dirt detection sensor
AssigneePanasonic Corporation of North America
InventorAlan Pullins
Life of this patent
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Abstract
A vacuum cleaner includes a housing that carries a suction inlet, a dirt collection vessel, a main filter compartment and a suction generator. The main filter is received in the main filter compartment. An airflow pathway connects the suction inlet, the dirt collection vessel, the main filter compartment and the suction generator. A dirt detection sensor is provided in the airflow pathway between the dirt collection vessel and the main filter compartment.
Claims18
A vacuum cleaner, comprising:
- a housing;
- a suction inlet carried on said housing;
- a dirt collection vessel carried on said housing;
- a main filter compartment carried on said housing;
- a main filter received in said main filter compartment;
- a suction generator carried on said housing;
- an airflow pathway connecting said suction inlet, said dirt collection vessel, said main filter compartment and said suction generator;
- and
- a sensor for detecting dirt in said airflow pathway between said dirt collection vessel and said main filter compartment.
6 more elements
A method of manufacturing a vacuum cleaner, comprising:
- providing the vacuum cleaner with a dirt collection vessel and a separate main filter compartment;
- and
- providing a dirt detection sensor in an airflow pathway between said dirt collection vessel and said main filter compartment.
Dependencies are inferred from the claim text.