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:
Aug. 17, 2021
Filed:
Dec. 26, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Kazuma Miyazawa, Nagano, JP;
Kunihiro Sasaoka, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 45/00 (2006.01); B01D 45/14 (2006.01); B04C 3/06 (2006.01); B04C 3/00 (2006.01); D21F 9/00 (2006.01); D21B 1/34 (2006.01); D21B 1/32 (2006.01); D21D 5/06 (2006.01);
U.S. Cl.
CPC ...
B01D 45/14 (2013.01); B04C 3/06 (2013.01); B04C 2003/006 (2013.01); D21B 1/32 (2013.01); D21B 1/345 (2013.01); D21D 5/06 (2013.01); D21F 9/00 (2013.01);
Abstract
A swirling flow generation device includes a first pipe having a first pipe axis and through which gas passes, a second pipe having a second pipe axis in a direction different from the first pipe axis and communicates with downstream of the first pipe, and an airflow changing unit provided in the first pipe and having an opening eccentric from the first pipe axis. A swirling flow is formed in the second pipe as the center of the airflow passed through the opening flows into the second pipe at a position that is eccentric from the second pipe axis.