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. 22, 2022
Filed:
Jun. 15, 2017
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Makoto Fujii, Osaka, JP;
Masaki Miyamoto, Osaka, JP;
Tatsuya Fujii, Osaka, JP;
Toshihide Iida, Osaka, JP;
Tomoyuki Koike, Osaka, JP;
Shintaro Makihata, Osaka, JP;
NIPPON PILLAR PACKING CO., LTD., Osaka, JP;
Abstract
A resin tube fitting has: a body with an outer sleeve; an inner ring including an insert portion insertable into the outer sleeve to contact the outer sleeve radially, and a press-in portion configured to be pressed into a longitudinal end of the tube; and a union nut configured to be engageable with the body. The body and the inner ring are made of resin, which has a property of contracting in response to change in ambient temperature. A radial contraction rate of the outer sleeve of the body is designed to be higher by 0.09% or more than that of the insert portion of the inner ring.