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:
Oct. 14, 2025
Filed:
Aug. 31, 2021
Meidensha Corporation, Tokyo, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
A bubble generation device is provided which is capable of efficiently peeling off contaminants from a surface of a filtration membrane. There is provided a bubble discharge chamber disposed above a turnaround portion of a turnaround path. The turnaround path includes a first communication port communicating with a gas storage chamber and a second communication port communicating with the bubble discharge chamber on a downstream side of the turnaround portion. Each of the gas storage chamber and the bubble discharge chamber includes an opening facing downward at a lower end. A cross-sectional area of the bubble discharge chamber in a horizontal direction is equal to or larger than an opening area (a sum of the opening areas of the two second communication ports in an illustrated example) of the second communication port.