Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2011-04-12
2011-04-12
Nguyen, Hoai-An D (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S071200, C324S527000
Reexamination Certificate
active
07924032
ABSTRACT:
A method for fabricating pipeline coating samples containing synthetic disbonds to be used in estimating a condition of a coating of an underground pipeline. The method includes the steps of providing a section of a pipe having a predetermined diameter and length; installing end caps on opposing ends of the pipe section, each end cap having an electrical connection extending therefrom; applying a material having a low dielectric coefficient around the pipe segment between the end caps to simulate an air-filled disbond; varying the coverage area of material to simulate various disbond sizes; and wrapping the pipe segment and end caps with tape to cover the material having a low dielectric coefficient.
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Davis Thomas James
Miller Scott Downing
Perez Jaime Paunlagui
Abelman ,Frayne & Schwab
Nguyen Hoai-An D
Saudi Arabian Oil Company
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