Handheld vacuum cleaner

US10786126B2 · kind B2 · utility

Assignee

• Techtronic Industries Co. Ltd. · CN

Inventors

• Kirti Kant Paulla · Howard, US
• John Bohlen · Ossian, US
• Richard Friend · Sydney, AU
• Joseph Saunders · Wadsworth, US
• Sergey V. Makarov · Solon, US

Key dates

• Filing date: Nov 10, 2016
• Grant date: Sep 29, 2020
• Expiry date: May 16, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04C2009/002
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A handheld vacuum cleaner includes a fluid flow path extending from a dirty air inlet to a clean air outlet, a main body including a handle, and a fluid flow motor positioned in the fluid flow path. The vacuum cleaner further includes a dirt collection region with an openable bottom and a cyclonic separator in the fluid flow-path. The cyclonic separator includes a cyclone chamber having a first end wall and a second end wall, a cyclone dirty fluid inlet, and a cyclone clean fluid outlet. The vacuum cleaner further includes a filter chamber in the fluid flow path downstream from the cyclonic separator and upstream from the fluid flow motor. The filter chamber includes an outlet fluidiy communicating the filter chamber and the fluid flow motor and a tangential inlet fluidiy communicating the cyclonic separator and the filter chamber.