Patent · US Active

Suction device and method for operating a suction device

US10376113B2 · kind B2 · utility

0Cited by

3References

37Claims

0Family size

Assignee

ALFRED KÄRCHER SE & CO. KG · DE

Inventors

Gábor Peflof · Winnenden, DE
Andreas Seibold · Weingarten, DE
Florian Ebert · Winnenden, DE
Juergen Frank · Kirchberg, DE

Key dates

Filing date	Jul 11, 2017
Grant date	Aug 13, 2019
Priority date	—
Expiry date	Jan 30, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/70
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A suction unit comprising a suction apparatus, a dirt collection container, a filter device, wherein the dirt collection container is connected in terms of flow via the filter device to the suction apparatus, and a cleaning device for the filter device, which cleaning device comprises an external-air valve device, and at least one guide duct for air, which at least one guide duct has a first port which is connected in terms of fluid action to the cleaning device for the provision of external air from the at least one guide duct, a second port for the coupling of exhaust air of the suction apparatus into the at least one guide duct, and a third port which is connected in terms of fluid action to the surroundings of the suction unit, wherein air from the surroundings is configured to flow into the at least one guide duct via the third port.

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