Pipes and tubular conduits – With closures and plugs – Laterally insertable
Reexamination Certificate
2006-08-17
2010-02-02
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
With closures and plugs
Laterally insertable
C138S094000, C251S326000, C137S269000
Reexamination Certificate
active
07654287
ABSTRACT:
A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a flow path through the fitting extending along a longitudinal axis. The fitting has an internal recess cooperating with a test slide to block flow through the fitting. An externally accessible port allows insertion and removal of the test slide. The test slide has an internal recess in which a pressure release slide moves to open a hole to release pressure, and to close the hole to block flow through the fitting for pressure testing. After testing and the release of the fluid test pressure, the test slide is removed and a finish slide is inserted into the recess. The finish slide has an opening located and configured to coincide with the flow path through the male ends of the pipes, and to block the recess to provide a substantially uniform, cylindrical flow path through the fitting.
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Counterclaim of Inflow Products, Inc. (Civil Action No. 07/CV0540 DMS RBB).
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Brown Larry D.
Condon Duane R.
Enstrom Fred O.
Hart Dennis L.
Kendall Thomas L.
Anderson Lowell
Brinson Patrick F
Securus Inc.
Stetina Brunda Garred & Brucker
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