The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Nov. 19, 2021
Camfil Aktiebolag, Stockholm, SE;
Kenny Hedlund, Trosa, SE;
Vincent Arun Kenadzir, Chemor Perak, SE;
Christian Lindahl, Hägersten, SE;
Mageshvaran Muthu Krisnan, Trosa, SE;
Mathieu Hugues, Vagnhärad, SE;
CAMFIL AKTIEBOLAG, Stockholm, SE;
Abstract
An air filtration cassette extending in a length direction between a first end and a second end, related to an intended air flow direction from the first end to the second end during use, the air filtration cassette comprising a filter material disposed between an outer boundary surface and an inner boundary surface, the air filtration cassette having an interior open space encompassed by the inner boundary surface and the filter material, and having an opening arranged at one end of the open space and being closed at the other end thereof, an average distance between said inner boundary surface and said outer boundary surface at said second end being larger than an average distance between said inner boundary and said outer boundary at said first end, the average distance between said inner boundary surface and said outer boundary surface being the average of all distances between the inner boundary surface and the outer boundary surface in a direction perpendicular to said length direction at a selected position along the length of the air filtration cassette; an air filter and a filter arrangement.