Patent ID: 8905150

Claim:
An attachment assembly for securing a casing stripper within a bowl, a clamp securing the casing stripper within the bowl, the casing stripper configured to allow passage of the casing through the assembly and the casing stripper, the assembly comprising: a base with an outer surface and an inner surface, the outer surface of the base sized to be secured within the clamp, the clamp securing the base within the bowl, the base sized not to pass completely through the bowl; an attachment lip extending inward from the inner surface of the base, the attachment lip extending substantially perpendicularly inward from the inner surface of the base such that the attachment lip is approximately level; a lip aperture providing a passageway through the attachment lip, the lip aperture located internally of the attachment lip and the base, the lip aperture providing access through the base and the attachment lip, the lip aperture sized to allow the casing to pass through the lip aperture; an installation aperture of the attachment lip, the installation aperture configured to allow partial passage of a fastener through the installation aperture for securing the casing stripper to the base and the attachment lip; and a lower surface of the attachment lip contacting the casing stripper when the casing stripper attaches to the base, the lower surface providing a substantially planer surface for attachment of the casing stripper wherein the lower surface provides a substantially planar surface for attachment of the casing stripper to the attachment lip; a fastener that attaches the casing stripper to the attachment lip; at least one installation aperture of the attachment lip, the installation aperture enabling partial passage of the fastener through the attachment lip at installation aperture to secure the casing stripper to the attachment lip, the installation aperture located on the attachment lip in a nipple aperture of a drilling nipple.