Retainer for coal cutter bits

Claim 1

IN COMBINATION, A SOCKET MEMBER, FIRST AND SECOND INTERSECTING PASSAGEWAYS EACH EXTENDING THROUGH SAID SOCKET MEMBER, A CUTTER BIT, SAID CUTTER BIT HAVING A HEAD SECTION AND A SHANK SECTION, SAID SHANK SECTION BEING SLIDABLY FITTED INTO SAID FIRST PASSAGEWAY, A DETENT MEANS IN SAID SECOND PASSAGEWAY FOR RELEASABLY SECURING SAID CUTTER BIT IN SAID FIRST PASSAGEWAY, SAID DETENT MEANS COMPRISING AN ELONGATED SUBSTANTIALLY CYLINDRICAL ELASTOMERIC MEMBER HAVING A LONGITUDINAL AXIS, A NON-YIELDING ABUTTING MEANS SAID ABUTTING MEANS HAVING A CYLINDRICAL BODY PORTION AND AT LEAST ONE TRUNCATED CONICAL PORTION EXTENDING FROM SAID BODY PORTION, THE LONGITUDINAL AXIS OF SAID BODY PORTION BEING PARALLEL TO AND OFFSET FROM THE LONGITUDINAL AXIS OF SAID ELASTOMERIC MEMBER, SAID ABUTTING MEANS BEING RESILIENTLY FIXED TO SAID ELASTOMERIC MEMBER AND EXTENDING THEREFROM ADJACENT THE INTERSECTION OF SAID FIRST AND SECOND PASSAGEWAYS WHEN THE DETENT MEANS IS FIXED IN THE SECOND PASSAGEWAY TO RELEASABLY SECURE THE CUTTER BIT SHANK IN THE FIRST PASSAGEWAY.