Metallic cutting ring

Details Metallic cutting ring Metallic cutting ring

2005-08-08

2010-02-23

Bochna, David E. (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S341000

Reexamination Certificate

active

07665772

ABSTRACT:
The invention provides for a metallic cutting ring for a screw connection for sealingly connecting a tube to an attachment part, which metallic cutting ring has a tube abutment section and a cutting section which adjoins the tube abutment section in the axial direction. The cutting section having a stop which points radially outward from the outer periphery of the cutting ring and has a stop face, which runs transversely with respect to the cutting ring longitudinal axil, for the attachment part. The stop for the attachment part has an annular peripheral stop edge which projects beyond the stop face.

REFERENCES:
patent: 2406488 (1946-08-01), Brock
patent: 3325192 (1967-06-01), Sullivan
patent: 3512812 (1970-05-01), Kreidel et al.
patent: 3695647 (1972-10-01), Pugliese
patent: 3889989 (1975-06-01), Legris
patent: 6073976 (2000-06-01), Schmidt et al.
patent: 6641180 (2003-11-01), Udhoefer
patent: 4304534 (1994-08-01), None
patent: 1117987 (1968-06-01), None

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