Patent · US Expired

Dirt separation system for a vacuum cleaner

US7360275B2 · kind B2 · utility

10Cited by

3References

20Claims

0Family size

Inventors

David M. J. Allgeier · Cumberland, US
Erik D. Lesco · Massillon, US
Jerry L. Balzer · North Canton, US
David C. Kumpf · Canton, US

Key dates

Filing date	Apr 17, 2003
Grant date	Apr 22, 2008
Priority date	—
Expiry date	Jan 21, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/03
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A vacuum cleaner includes a dirt separation system that has a dirt cup retaining a filter assembly having a screen element, an exit, and a filter element disposed between the screen element and the exit. A nozzle disposed in the dirt cup directs an airstream generally parallel to the surface of the screen element so that particles in the airstream are primarily separated by the screen element and, as the airstream ultimately travels towards the exit in the dirt cup, are secondarily separated by the filter element.

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