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:
May. 24, 2005
Filed:
Nov. 05, 1998
Kiyoshi Nishio, Sanda, JP;
Kiyoshi Nishio, Sanda, JP;
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Abstract
A cylindrical projecting portion is disposed in a projected tip end portion of an inner ring which is to be pressingly inserted into one end portion of a pipe member to be integrated therewith, an inner radial face of the cylindrical projecting portion is formed as a conical tapered face in which the diameter is larger as one moves toward the outer side in the axial direction, and a cylindrical groove into which the cylindrical projecting portion of the inner ring including the conical tapered face is to be fitted in the axial direction to form a sealing portion is formed in an inner area of a receiving port of a joint body to form sealing portions between the two members and, whereby even a small fastening force due to screw advancement of a pressing ring is enabled to generate a high contact pressure between the tapered face and an outer radial face, and faces and which are opposed thereto, to ensure a sealing performance of very high reliability.