Adjustable floor clean-out extension

Claim 1

AN ADJUSTABLE FLOOR CLEAN-OUT EXTENSION ASSEMBLY COMPRISING, A CAULKING FERRULE HAVING ONE END PROVIDED WITH A MEANS FOR ENGAGING WITH A MOUTH FLANGE OF A CLEAN-OUT PIPE AND TERMINATING AT ITS OPPOSITE END IN A GENERALLY PLANAR CROWN SURFACE HAVING AN OPENING THERETHROUGH WITH CLEAN-OUT PLUG SECURED THEREIN, A TUBULAR FRAME MEMBER TO LARGER INSIDE DIAMETER THAN SAID PLUG AND SMALLER OUTSIDE DIAMETER THAN THE OUTSIDE DIAMETER OF SAID CROWN SURFACE, SAID TUBULAR FRAME MEMBER HAVING RECTILINEARLY SMOOTH INNER AND OUTER LONGITUDINAL SURFACES AND OPPOSITE TERMINAL SURFACES TRANSVERSE TO THE INNER AND OUTER LONGITUDINAL SURFACES, SAID FRAME MEMBER BEING MADE FROM RELATIVELY THIN MATERIAL CAPABLE OF BEING EASILY SEVERABLE BY MEANS OF SHEET METAL TRIMMING SHEARS, ONE TERMINAL SURFACE OF SAID TUBULAR FRAME MEMBER ABUTTING SAID PLANAR CROWN SURFACE, A TUBULAR COLLAR MEMBER HAVING A LONGITUDINALLY EXTENDING FIRST PORTION WITH A SMOOTH EXTERNAL SURFACE IN SLIDABLE CONTACT WITH THE INNER SURFACE OF SAID TUBULAR FRAME MEMBER ADJACENT THE REMAINING TERMINAL SURFACE OF SAID FRAME MEMBER AND HAVING A LATERAL ANNULAR FLANGE SECOND PORTION WITH A SURFACE IN CONTACT WITH SAID REMAINING TERMINAL SURFACE OF SAID FRAME MEMBER, SAID ANNULAR COLLAR MEMBER HAVING A REMOVABLE COVER MEMBER CLOSINGLY RECEIVED THEREIN, AND A HEADED SCREW EXTENDING THROUGH SAID COVER MEMBER WITH THE HEAD ENGAGING THE COVER MEMBER AND THE SCREW EXTENDING LONGITUDINALLY THROUGH THE COLLAR MEMBER AND THE FRAME MEMBER AND BEING THREADEDLY SECURED TO SAID CLEAN-OUT PLUG CLAMPING ALL PARTS OF THE ASSEMBLY IN UNITARY RELATION.