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:
Dec. 09, 2003
Filed:
Aug. 26, 1999
Hiroshi Ikegami, Osaka, JP;
Yasuhiro Kikumori, Osaka, JP;
Toshihiro Nakanishi, Osaka, JP;
Susumu Okairi, Osaka, JP;
Nobuo Shindo, Osaka, JP;
Tatsuya Machino, Osaka, JP;
Totaku Industries, Inc., Takatsuki, JP;
Abstract
A pipe-end-connecting joint comprisse a nipple inserted in the pipe end, a holder for tightening the outer circumference of the pipe end, and an elastic packing 3 divided into half parts and attached in the holder . The nipple includes a tubular portion 11 provided in one longitudinal end side thereof so as to be inserted in the pipe end, a connection portion provided in the other longitudinal end side thereof so as to be connected to another joint, and a flange portion provided in a longitudinal intermediate portion thereof so as to protrude outward. The holder is divided longitudinally into two split parts A and B so that each of the two split parts A and B has an semicircularly formed inner circumferential surface , and each of the two split parts A and B has one longitudinal end side in which one of the half parts of the elastic packing is mounted, and has the other longitudinal end side in which a ring-like groove is formed so as to be fitted to the flange portion , and further has a longitudinally intermediate portion between the one and the other longitudinal end sides in which a spiral corrugated portion is formed along the outer circumferential surface of the pipe P, the spiral corrugated portion having a spiral protruding portion an inner diameter of which is smaller than an outer diameter of a trough portion r of the pipe P, the two split parts A and B having holes for insertion of connection bolts.