Removable tile and fastener assembly

Claim 1

IN A TILE ASSEMBLY FOR COVERING A SURFACE, THE COMBINATION COMPRISING A PAIR OF COPLANAR, SPACED, STATIONARY TILES AND A REMOVABLE TILE DISPOSED THEREBETWEEN AND IN COPLANAR RELATION THEREWITH, SAID TILES HAVING OBVERSE AND REVERSE SURFACES AND END WALLS DISPOSED AT OPPOSITE ENDS THEREOF, SAID END WALLS OF SAID STATIONARY TILES HAVING CHANNELS SIMILARLY PROVIDED LENGTHWISE THEREOF, EACH SAID CHANNEL HAVING UPPER AND LOWER WALLS DISPOSED IN SPACED, PARALLEL RELATION, THE REVERSE SURFACE OF SAID REMOVABLE TILE HAVING A CUT-AWAY PORTION ADJACENT ONE OF THE END WALLS THEREOF, THE OTHER END WALL THEREOF HAVING A CHANNEL PROVIDED LENGTHWISE THEREOF, SAID CUT-AWAY PORTION HAVING A BASE PARALLEL WITH RESPECT TO SAID REVERSE SURFACE AND COPLANAR WITH RESPECT TO THE LOWER WALL OF SAID CHANNELS, A PORTION OF SAID BASE EXTENDING THE LENGTH OF SAID ONE OF SAID END WALLS, A PASSAGE THROUGH SAID REMOVABLE TILE PROVIDING COMMUNICATION BETWEEN SAID BASE AND SAID OBVERSE SURFACE, A BUTTON ROTATABLY MOUNTED WITHIN SAID PASSAGE, SAID BUTTON HAVING COAXIALLY DISPOSED STUD, NECK, SHOULDER AND HEAD PORTIONS, SAID STUD BEING RECTANGULAR OF CROSS-SECTION, SAID HEAD PORTION BEING ADAPTED TO EXTEND OUTWARDLY OF SAID OBVERSE SURFACE OF SAID REMOVABLE TILE, SAID SHOULDER PORTION BEING CONTIGUOUS WITH SAID OBVERSE SURFACE THEREOF, A FLAT ARM MEMBER HAVING A RECTANGULAR OPENING DISPOSED THERETHROUGH INWARDLY OF ONE END THEREOF, SAID ARM MEMBER BEING REMOVABLY SECURED TO SAID STUD AND ADAPTED TO ROTATE THEREWITH, SAID ARM MEMBER EXTENDING LATERALLY OF SAID STUD, THE LOWER SURFACE OF SAID ARM MEMBER BEING COPLANAR WITH RESPECT TO THE UPPER WALL OF SAID CHANNELS AND PARALLEL WITH THE BASE OF SAID CUT-AWAY PORTION, SPLINE MEMBERS REMOVABLY RECEIVABLE LENGTHWISE OF SAID CHANNELS, A PORTION OF A RESPECTIVE SPLINE MEMBER BEING RECEIVABLE WITHIN ABUTTING CHANNELS OF RESPECTIVE TILES, SAID SPLINE MEMBERS HAVING UPPER AND LOWER SURFACES ADAPTED FOR SEATING ENGAGEMENT WITH SAID UPPER AND LOWER WALLS, RESPECTIVELY, OF SAID CHANNELS, SAID ROTATABLE ARM MEMBER BEING ADAPTED TO PRESSINGLY ENGAGE A PORTION OF THE UPPER SURFACE OF THE SPLINE MEMBER EXTENDING WITHOUT THE CHANNEL OF A STATIONARY TILE TO THUS RETAIN SAID SPLINE MEMBER AGAINST THE PORTION OF SAID BASE EXTENDING THE LENGTH OF SAID ONE OF SAID END WALLS OF SAID REMOVABLE TILE TO THEREBY REMOVABLY RETAIN SAID REMOVABLE TILE IN END WALL ABUTTING RELATION WITH SAID STATIONARY TILE.