Pipe joints or couplings – Essential catch – Resilient ring
Reexamination Certificate
2005-06-14
2005-06-14
Nicholson, Eric K. (Department: 3679)
Pipe joints or couplings
Essential catch
Resilient ring
C285S123400, C285S123130, C285S309000
Reexamination Certificate
active
06905148
ABSTRACT:
A connector for securing tubular members or conduits in sealed end to end relationship is disclosed. A split ring biased to an unlocked position is carried on the pin connection member in a recess. After the connection is made, the split ring is expanded through a window in the box connection member and locked in place. Alternative embodiments showing a split ring biased to a locked position and a split ring with an articulated joint are shown. A fourth embodiment that allows preloading of the split ring is shown also.
REFERENCES:
patent: 2178549 (1939-11-01), Block
patent: 2877732 (1959-03-01), Eaton
patent: 3177019 (1965-04-01), Osweiler
patent: 3887991 (1975-06-01), Panella
patent: 4830408 (1989-05-01), Reimert
patent: 5026200 (1991-06-01), van Bilderbeek
patent: 5794988 (1998-08-01), Gill
patent: 6695356 (2004-02-01), Nguyen et al.
Nguyen Dennis P.
Vanderford, Jr. Delbert E.
Bielinski Peter
Cooper Cameron Corporation
Duke Jackie Lee
Hartmann Mike P.
Nicholson Eric K.
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