Pipe joints or couplings – Particular interface – Annular socket
Reexamination Certificate
2005-05-24
2005-05-24
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
Particular interface
Annular socket
C285S354000
Reexamination Certificate
active
06896299
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.
REFERENCES:
patent: 5154453 (1992-10-01), Nishio
patent: 5370424 (1994-12-01), Wendorff
patent: 5388871 (1995-02-01), Saitoh
patent: 5553900 (1996-09-01), Fukumoto et al.
patent: 5951060 (1999-09-01), Fukano et al.
patent: 5996636 (1999-12-01), Fukano et al.
patent: 6089621 (2000-07-01), Nishio
patent: 6193239 (2001-02-01), Fukano et al.
patent: 0 380 970 (1990-08-01), None
patent: 2-117494 (1990-09-01), None
patent: 4-248095 (1992-09-01), None
patent: 5-87287 (1993-04-01), None
patent: 5-322091 (1993-12-01), None
patent: 10-54489 (1998-02-01), None
Japanese Patent Appl. Laying open No. H03-168495.
Bacon & Thomas
Dunwoody Aaron
Nicholson Eric K.
Nippon Pillar Packing Co. Ltd.
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