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. 13, 2026
Filed:
Nov. 20, 2018
Applicant:
Kubota Corporation, Osaka, JP;
Inventors:
Assignee:
KUBOTA CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 63/08 (2006.01); B01D 69/06 (2006.01); B29C 65/00 (2006.01); B29C 65/18 (2006.01); B29L 31/14 (2006.01);
U.S. Cl.
CPC ...
B01D 63/081 (2013.01); B01D 63/0821 (2022.08); B01D 69/06 (2013.01); B29C 65/18 (2013.01); B29C 66/10 (2013.01); B29C 66/221 (2013.01); B29C 66/225 (2013.01); B29C 66/232 (2013.01); B29C 66/24244 (2013.01); B01D 2313/04 (2013.01); B01D 2315/06 (2013.01); B29L 2031/14 (2013.01);
Abstract
The outer edge of a filtration membrane is thermally welded to a filter plate by a first thermal welding part. The first thermal welding part includes an outer boundary line disposed inside an outer edge of the filter plate and an inner boundary line disposed inside the outer boundary line. The outer boundary line has a plurality of first projected portions and first recessed portions that are alternately formed. The first projected portion projects toward the outer edge of the filter plate, and the first recessed portion is formed between the first projected portions and retracts in an inward direction A opposite to the outer edge of the filter plate.