FULL CLOSURE CORE CATCHER

摘要

A core catcher includes a housing having an inner wall that defines an axial bore through the housing. A retention member is disposed within the housing and is coupled to a first hinge tab that defines a first hinge barrel with the inner wall of the housing. A first closure member has a slot that is engaged with the first hinge tab and a pivot edge that is at least partially disposed within the first hinge barrel. In an open position, the first closure member is disposed in an annulus between the housing and a sleeve that is slidably disposed within the housing. In a closed position, the first closure member is disposed at least partially across the axial bore of the housing.