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:
Nov. 25, 2025
Filed:
Oct. 04, 2021
Daikin Industries, Ltd., Osaka, JP;
Masaya Kasai, Osaka, JP;
Takema Nakazawa, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A heat exchanger includes flat sheet shaped partition members, and spacing members alternately stacked with the partition members to keep a space between an adjacent pair of the partition members. Each of the partition members is sandwiched between a first passage and a second passage alternately formed. Each of the spacing members has a frame portion formed along a periphery of the partition members. Each frame portion includes a ridge formed on one surface of the frame portion, and an elongated recess formed on an other surface of the frame portion. The ridge of one of an adjacent pair of the spacing members fits into the elongated recess of the other spacing member. Each of the partition members is sandwiched between the ridge of one of a pair of the spacing members adjacent to the partition member and the elongated recess of the other spacing member.