Pipes and tubular conduits – With closures and plugs – Laterally insertable
Reexamination Certificate
2011-01-11
2011-01-11
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
With closures and plugs
Laterally insertable
C138S093000, C138S089000
Reexamination Certificate
active
07866347
ABSTRACT:
An isolation tool for use in a pipe comprises a seal unit, the seal unit being mounted to a launching assembly. The seal unit is adapted for location in a section of pipe, the seal unit adapted to be inserted into the pipe via a single opening in the pipe wall. The seal unit comprises seal elements for engaging the pipe wall to isolate a section of pipe. The seal elements are initially retained in a retracted configuration. Hydraulic pressure is applied to a cylinder, a piston located in the cylinder being translated into the seal unit, causing compression of the seal elements.
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Search Report under Section 17 for Application No. GB0714113.8 dated Oct. 18, 2007.
Brinson Patrick F
Carlson & Gaskey & Olds PC
Stats (UK) Limited
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