Patent ID: 9175797
Filing Date: 2015-11-03
Classification: E03F,F16L

Abstract:
1. An apparatus for covering a conduit, the apparatus having a central axis of rotation, the apparatus comprising: a cover having an integral and axially aligned first spline; an expander having a second spline in axial alignment and mutual engagement with the first spline, the expander further having at least two C-shaped arms with one end of each of the arms engaged integrally with the second spline, and with a further end of each of the arms engaged with an axially positioned jacking nut; and an axially aligned jacking bolt penetrating the cover and the expander, and threadedly engaged with the jacking-jacking nut; wherein, rotation of the jacking-jacking bolt enables the jacking-jacking nut to move toward the expander and enables the C-shaped arms to bow outwardly for contact with an interior surface of the conduit thereby mutually securing the apparatus and conduit together.