Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate
2008-10-27
2011-12-06
Bastianelli, John (Department: 3753)
Valves and valve actuation
Reciprocating valve
Gate
C166S361000
Reexamination Certificate
active
08070131
ABSTRACT:
A gate valve having a body, a chamber housed in the body, a passage through the body that intersects the chamber, a gate for selectively opening and closing the valve, and a cutting edge on the gate. The cutting edge can sever any lines that may be in the valve and still seal after closing. The gate includes a recess formed to collect cuttings formed while severing the line.
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Search Report, Application No. GB0918262.7, dated Nov. 13, 2009.
Bastianelli John
Bracewell & Giuliani LLP
Vetco Gray Inc.
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