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:
Aug. 17, 2004
Filed:
May. 24, 2002
Applicant:
Inventor:
Kiyoshi Nishio, Sanda, JP;
Assignee:
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 2/500 ;
U.S. Cl.
CPC ...
F16L 2/500 ;
Abstract
A structure for preventing slipping-off of a tube in a pipe joint made of resin in which a union nut ( ) is fastened to a joint body ( ) to cause a pressing edge portion ( ) of the union nut ( ) to abut against a diameter-increased root portion ( ) of a tube ( ), thereby pressing one end of the tube ( ) toward the joint body ( ), a recess ( ) is previously shaped in the diameter-increased root portion ( ) of the tub ( ), the recess being smaller in radius of curvature or angle than the diameter-increased root portion, and the pressing edge portion ( ) of the union nut ( ) is then caused to abut against the recess ( ).