Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-09-05
2006-09-05
Bagnell, David (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S193000, C166S318000
Reexamination Certificate
active
07100700
ABSTRACT:
A ball release mechanism is mounted near the intended seat. The ball or balls are kept out of the circulating stream. High circulation rates followed by curtailment of circulation places an outlet port in position to allow the ball or balls to be pushed out by a spring. The spring or one of the balls prevents the return of an ejected ball back into the protected pocket. The ball is delivered to the seat without circulation.
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Davis John P.
Lynde Gerald D.
Bagnell David
Baker Hughes Incorporated
Bomar Shane
Rosenblatt Steve
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