Highway replaceable post

Claim 1

A REPLACEABLE POST ASSEMBLY, COMPRISING: A GENERALLLY TUBULAR BASE ADAPTED TO BE EMBEDDED IN THE GROUND INCLUDING A LOWER, RELATIVELY SLENDER TUBULAR END AND AN UPPER RADIALLY ENLARGED, EXTERNALLY CONICALLY TAPERED END, THE LOWER EXTREMITY OF SAID TUBULAR END BEING POINTED, THERE BEING A SOCKET EXTENDING AXIALLY THROUGH AND OPENING THROUGH SAID UPPER END OF SAID BASE, SAID SOCKET HAVING A LOWER CYLINDRICAL PORTION OF GENERALLY CONSTANT DIAMETER WITHIN SAID LOWER TUBULAR END OF SAID BASE AND AN UPPER CONICALLY TAPERED PORTION WITHIN SAID UPPER CONICALLY TAPERED END OF SAID BASE, A SUPPORTING POST HAVING A NORMALLY LOWER END REMOVABLY POSITIONED IN SAID SOCKET AND A NORMALLY UPPER AND EXTENDING BEYOND SAID UPPER END OF SAID BASE, SAID POST HAVING A RELATIVELY CLOSE FIT IN SAID LOWER SOCKET PORTION, A PAIR OF CONICALLY TAPERED COLLET MEMBERS POSITIONED IN SAID CONICALLY TAPERED SOCKET PORTION ABOUT SAID POST FOR SECURING SAID POST IN SAID SOCKET, THE UPPER ENDS OF SAID COLLET MEMBERS BEING SUBSTANTIALLY FLUSH WITH THE UPPER END OF SAID BASE AND INCLUDING ACCESSIBLE GRIPS TO AID REMOVAL AND INSERTION OF SAID MEMBERS, A YIELDABLE SEALING SLEEVE SURROUNDING AND ADJUSTABLE ALONG SAID POST AND INCLUDING A LOWER SEALING RIM SEATING AGAINST THE UPPER END OF SAID BASE ABOUT THE UPPER END OF SAID SOCKET, AND A COLLET SCREW THREADED IN SAID BASE AT AN ANGLE TO SAID SOCKET AND SEATING AGAINST THE OUTER SURFACE OF ONE COLLET MEMBER FOR URGING THE LATTER MEMBER INWARDLY AND DOWNWARDLY RELATIVE TO SAID BASE AND THEREBY CLAMPING SAID COLLET MEMBERS TIGHTLY ABOUT SAID POST, SAID SCREW HAVING ITS HEAD RECESSED INTO AND EXPOSED AT SAID UPPER END OF SAID BASE.