Patent ID: 7334633
Filing Date: 2008-02-26
Classification: E21B

Abstract:
1. A system for disconnectably connecting a stripper rubber to drilling head equipment, the system comprising: a stripper rubber including one or more inserts, wherein at least one of said inserts has one or more cam pins extending vertically therefrom; an adapter configured for being connected between the drilling head equipment and the stripper rubber, wherein the adapter includes a primary bore, one or more cam pin bores substantially parallel to the primary bore and one or more cam lock bores substantially perpendicular to the primary bore, wherein each one of said cam pin bore intersects a respective one of said lock bore to form an aperture, and attachment means configured for allowing the adapter to be fixedly attached to a mating portion of said drilling head equipment; a plurality of cam locks, wherein each one of said cam locks are rotatably engagable within a respective one of said cam lock bores, wherein each one of said cam locks selectively and lockingly engages a respective one of said cam pins through the respective aperture upon rotation to a locked position thereby providing for connection of the stripper rubber to the adapter when said cam pins are disposed within respective ones of said cam pin bores, and wherein each one of said cam locks selectively disengages from the respective one of said cam pins upon rotation to an unlocked position thereby allowing disconnection of the stripper rubber from the adapter.