Patent · US Active

Filter cartridge with venturi nozzle

US11235271B2 · kind B2 · utility

0Cited by

6References

17Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Stefan Kluck · Reilingen, DE
Karsten Schulz · Melbourne, AU
Sascha SCHUMACHER · Bietigheim-Bissingen, DE

Key dates

Filing date	Jan 8, 2020
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Jun 14, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/72
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter cartridge for cleaning an air flow includes a base, a cover provided with a central recess, and at least one pleated filter element arranged between the cover and the base. The at least one filter element encloses an interior space. The cover has a venturi nozzle, and the venturi nozzle engages in the pleated filter element. The venturi nozzle is spread out in comb-like fashion in the region of its end engaging in the filter element.

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