Patent · US Active

Dirt cup assembly with a pre-filter having a plurality of ribs

US8533903B2 · kind B2 · utility

13Cited by

6References

18Claims

0Family size

Assignee

PANASONIC CORPORATION OF NORTH AMERICA · US

Inventors

Eric E. Muhlenkamp · Lexington, US
Joe M. Reynolds · Richmond, US
Jeffrey T. Roney · Stanford, US

Key dates

Filing date	Mar 19, 2010
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Sep 4, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/1683
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A floor cleaning apparatus includes a housing having a nozzle assembly and a canister assembly. The nozzle assembly includes a suction inlet. Both a suction generator and a dirt collection assembly are carried on the housing. The dirt collection assembly includes a dirt cup, a shroud concentrically received within the dirt collection chamber defined by the dirt cup and at least one rib projecting from the shroud toward the bottom wall of the dirt cup. The rib is positioned so as to reduce air turbulence in the dirt collection chamber between an airflow guide on the shroud and the bottom wall of the dirt cup.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.