Expansion joint filler

Claim 1

A CONSTRUCTION JOINT FILLER FOR CLOSING UP THE SURFACE PART OF AN ELONGATED EXPANSION JOINT BETWEEN A PAIR OF SPACED-APART STRUCTURE ELEMENTS HAVING EXTERNAL SURFACES AND OPPOSITELY DISPOSED SUBSTANTIALLY PARALLEL WALL PORTIONS FORMING THE JOINT COMPRISING FIRST AND SECOND FRAME MEMBERS EXTENDING ALONG AND SECURED TO RESPECTIVE STRUCTURE ELEMENTS, EACH OF SAID FRAME MEMBERS HAVING A BODY PORTION SPACED BELOW THE EXTERNAL SURFACE OF THE STRUCTURE ELEMENTS, SAID BODY PORTION HAVING A SURFACE GENERALLY CONTIGUOUS TO THE OPPOSITELY FACING WALLS FORMING THE JOINT, SAID FIRST FRAME MEMBER HAVING A REMOVABLE OUTER WALL NEAREST THE EXTERNAL SURFACE OF SAID STRUCTURE ELEMENT, AND A SUBSTANTIALLY PARALLEL INNER WALL DEFINING A LONGITUDINALLY EXTENDING SLOT BETWEEN SAID WALLS IN A PLANE SUBSTANTIALLY PARALLEL TO THE DIRECTION OF RELATIVE MOVEMETN OF THE STRUCTURE ELEMENTS UPON EXPANSION OR CONTACTION THEREOF, SAID SECOND FRAME MEMBER HAVING A LONGITUDINALLY EXTENDING LOCKING GROOVE FORMED THEREIN, SAID LOCKING GROOVE INCLUDING ANGULARLY RELATED PORTIONS, AN ELONGATED BRIDGE STRIP HAVING AN ANGULARLY RELATED FLANGE PORTION EXTENDING ALONG ONE EDGE THEREOF AND DETACHABLY RECEIVED IN SAID LOCKING GROOVE AND AN OPPOSITE LONGITUDINAL EDGE SLIDABLY RECEIVED IN SAID SLOT IN SAID FIRST FRAME MEMBER, AND A RESILIENTLY COMPRESSIBLE FILLER STRIP SUPPORTED ON SAID BRIDGE STRIP BETWEEN SAID FRAME MEMBERS AND EXTENDING OUTWARDLY TO ABOUT SAID EXTERNAL SURFACES OF SAID STRUCTURES ELEMENTS.