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:
Jan. 12, 2021
Filed:
Mar. 27, 2018
Applicant:
Blueair Ab, Stockholm, SE;
Inventors:
Jacob Gunnefur, Stockholm, SE;
Jakob Mingettig, Stockholm, SE;
Assignee:
Blueair AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 46/52 (2006.01); F24F 13/28 (2006.01); B01D 46/24 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0016 (2013.01); B01D 46/2411 (2013.01); B01D 46/521 (2013.01); F24F 13/28 (2013.01); B01D 2273/14 (2013.01); B01D 2275/205 (2013.01); F24F 2221/36 (2013.01);
Abstract
An air filter unit for purifying air. The air filter unit includes a filter body extending along an axis, a first filter frame and a second filter frame arranged on opposite ends of said filter body. Each of the first and second filter frame includes four elongated frame members turnably secured to each other. The four elongated frame members are turnably secured to each other such that the filter body could be arranged in a first and a second state. The first state is such that the filter body is folded to reduce the volume of the filter unit and the second state is such that the filter body is assembled.