| 摘要 |
This application is for an access opening component (invention) used to provide access into a pressure retaining item. Pressure retaining item may contain degraded material at the location where the invention is to be located. What is new in the art to which my invention pertains is that installation of the access opening can be accomplished without need to cut a precise hole in the pressure retaining item or remove localized degraded material. Common access hole installation methods require cutting a precise size hole and may require removal or repair of degraded material in the pressure boundary material. The invention does not require replacement or repair of degraded pressure boundary material, and does not required cutting a precise hole size in the material as the invention can be constructed to encapsulate any area of degraded pressure boundary material or any size hole cut into the pressure boundary material.
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