Patent · US Active

Suction device

US10426305B2 · kind B2 · utility

2Cited by

3References

22Claims

0Family size

Assignee

ALFRED KÄRCHER SE & CO. KG · DE

Inventors

Florian Ebert · Winnenden, DE
Felix Bensing · Stuttgart, DE
Simon Jetter · Plüderhausen, DE
Gábor Peflof · Winnenden, DE
Dominik Scholl · Winnenden, DE

Key dates

Filing date	Jul 11, 2017
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Mar 13, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/20
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A suction unit is proposed which comprises 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, wherein the cleaning device forms a noise source for noise emissions in a frequency range below 2000 Hz, and wherein at least one perforated-plate resonator is associated with the cleaning device, wherein the at least one perforated-plate resonator has a chamber with a chamber space and with a chamber wall and has at least one perforated plate which covers the chamber space, and wherein the at least one perforated plate is connected, actively with respect to sound, to the cleaning device.

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