Pipe joints or couplings – Essential catch – Coil spring
Reexamination Certificate
2005-06-21
2005-06-21
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Essential catch
Coil spring
C285S092000, C285S305000, C285S333000
Reexamination Certificate
active
06908121
ABSTRACT:
A connector arrangement used for connecting and locking tubular members. The connector consists of two tubular members and a coupling member. The tubular members are threaded together to create a threaded connection. The locking arrangement is provided by a pathway formed on the tubular member whereby a locking member can be inserted in to the pathway to lock the threaded connection. The locking arrangement is also provided by a plurality of castellation members disposed on each tubular member. The connector also has a separate coupling member which has opposite right-hand and left-hand threaded ends to threadedly mate with the threads of the two tubular members.
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PCT International Report, International Application No. PCT/GB 02/04745, dated Feb. 6, 2003.
U.K. Office Action, Application No. GB0400469.3, dated Sep. 7, 2004.
Gudmestad Tarald
Hirth David Eugene
Murray Mark J.
Pedersen Gerald Dean
Hewitt James M.
Moser, Patterson & Sheridan L.L.P.
Weatherford / Lamb, Inc.
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