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US 6,957,473 B2Granted
Upright vacuum cleaner with spring loaded nozzle
AssigneePanasonic Corporation of North America
InventorsTamaki Nishikori, Ron Davis
Life of this patent
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Abstract
An upright vacuum cleaner includes a nozzle assembly, a canister assembly pivotally mounted to said nozzle assembly, a suction fan and motor and a biaser. The biaser has a first end that engages the nozzle assembly and a second end that engages the canister assembly. The biaser provides a positive downforce urging the forward end of the nozzle assembly toward the surface being cleaned.
Claims1
An upright vacuum cleaner, comprising:
- a housing including a nozzle assembly and a canister assembly;
- a pair of stub shafts for pivotally connecting said nozzle assembly with said canister assembly;
- a suction generator carried on said housing;
- a dirt collection vessel carried on said housing;
- a biasing spring partially received in one of said pair of stub shafts, said biasing spring biasing said nozzle assembly toward a surface to be cleaned.
2 more elements
Dependencies are inferred from the claim text.