Patent ID: 8746340

Claim:
A down hole apparatus for filtering debris from a debris-containing fluid in a well bore, the apparatus comprising: a screen sub; a diverter assembly operatively connected to said screen sub, said diverter assembly comprising an outer body capable of engaging said screen sub, an inner body disposed within said outer body, a detachable plug dimensioned to selectively engage said inner body, one or more passages between an outer surface of said inner body and an inner surface of said outer body, and one or more bypass openings, wherein said detachable plug comprises a fishing portion and one or more dog members dimensioned to selectively engage said inner body; and a screen section extending from said diverter assembly and operatively connected to said screen sub, said screen section comprising a plurality of openings for filtering debris from said fluid; wherein said detachable plug is capable of being detached from said diverter assembly to open a central passage through said diverter assembly and said screen section to permit retrieval of a bottom-hole assembly through said central passage.