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US 2016/0102675 A1Published application
Efficient vacuum cleaner fan inlet
AssigneeEmerson Electric Co.
InventorStuart V. HOLSTEN
Life of this patent
Estimating the term…
Abstract
A vacuum comprising a canister and a removable lid assembly that is configured to couple to the canister. The lid assembly includes a motor, an impeller coupled to the motor, a filter mounting structure configured to receive a filter element, and an impeller inlet with curved inner walls. These curved inner walls help to minimize air flow path disruptions.
Claims20
A vacuum cleaner comprising:
- a canister having a hose inlet;
- and
- a removable lid assembly that is configured to couple to the canister, the lid assembly including—
- a motor,
- an impeller coupled to the motor, and
- an impeller inlet with curved inner walls.
3 more elements
A vacuum cleaner comprising:
- a canister having a hose inlet;
- and
- a removable lid assembly that is configured to couple to the canister, the lid assembly including—
- a motor,
- an impeller coupled to the motor,
- an impeller inlet with curved inner walls, and
- an impeller throat with curved inner walls.
4 more elements
Dependencies are inferred from the claim text.