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:
Mar. 26, 2024
Filed:
Jun. 12, 2019
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Kiyotaka Ohmae, Osaka, JP;
Masashi Katanaya, Osaka, JP;
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Abstract
A flow passage joint structure includes: a first external thread portion formed, at an end portion of first piping block, radially outward of flow passage hole; a second external thread portion formed, at an end portion of second piping block, radially outward of flow passage hole; a union nut having a first internal thread portion to be screwed to the first external thread portion, on one side in an axial direction thereof, and having a second internal thread portion to be screwed to the second external thread portion, on another side in the axial direction thereof; and a gasket configured to seal a connection portion between the flow passage holes on a radially inner side of the union nut. The first external thread portion and the first internal thread portion are right-hand threads, and the second external thread portion and the second internal thread portion are left-hand threads.