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:
Jul. 16, 2019
Filed:
Oct. 22, 2014
Ebara Corporation, Tokyo, JP;
Kazumasa Hosotani, Tokyo, JP;
Toyoji Shinohara, Tokyo, JP;
EBARA CORPORATION, Tokyo, JP;
Abstract
A flow passage connecting apparatus for a heat exchanger includes a boss formed of a resin material in a columnar shape and having a plurality of through-holes for each receiving from one side one end of a heat exchanger tube made of a resin material, and a coupler made of a resin material and having a body portion formed in a circular cylindrical shape. The body portion is configured to receive therein a part of the boss on the other side opposite to the one side and to be connected to the boss by at least one of threaded engagement and full-circle welding. The connecting apparatus further includes first and second seal structures sealing between the boss and the body portion. The body portion has a communication hole formed at a position between the first and second seal structures to communicate between an inside and outside of the body portion.