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US 7,581,287 B2Granted
Vacuum cleaner with spiral air guide
AssigneePanasonic Corporation of North America
InventorMichael S. Yacobi
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner includes a housing having a suction inlet, a dirt collection vessel carried on the housing and a suction generator carried on the housing. The dirt collection vessel includes a dirt collection chamber and a spiral air guide providing a spiral air path to improve cleaning efficiency. The suction generator is provided in fluid communication with the suction inlet, the dirt collection vessel and the spiral air guide.
Claims20
A vacuum cleaner, comprising:
- a housing including a suction inlet;
- a dirt collection vessel carried on said housing, said dirt collection vessel including a dirt collection chamber;
- a spiral air guide providing a spiral air path;
- and
- a suction generator carried on said housing, said suction generator being in fluid communication with said suction inlet, said dirt collection vessel and said spiral air guide;
- said spiral air guide being characterized by including a spiral, tubular conduit having an inlet at a first end, an outlet at a second end and at least one clean air discharge orifice along an inside portion of said spiral air path between said inlet and said outlet.
3 more elements
Dependencies are inferred from the claim text.