Sectional cover apparatus for vehicles

Claim 1

AN EXTENSIBLE AND RETRACTABLE SECTIONAL COVER APPARATUS FOR VEHICLES HAVING AN UPWARDLY EXPOSED FLOOR, SAID APPARATUS COMPRISING A PLURALITY OF COVER SECTIONS INCLUDING A FIXED SECTION FIXEDLY MOUNTED ON SAID VEHICLE, A PLURALITY OF MOVABLE SECTIONS INCLUDING AN INTERMEDIATE MOVABLE SECTION AND AN END MOVABLE SECTION, EACH OF SAID SECTIONS BEING COMPRISED OF A RIGID TOP WALL HAVING SIDE WALLS INTEGRALLY FORMED THEREWITH SAID DEPENDING THEREFROM, A PLURALITY OF ROLLERS AFFIXED TO THE LOWER EDGE PORTIONS OF THE SIDES WALLS OF EACH MOVABLE SECTION, A PLURALITY OF PAIRS OF ELONGATED LONGITUDINALLY EXTENDING CHANNEL-SHAPED TRACKS AFFIXED TO THE VEHICLE ADJACENT OPPOSITE SIDES THEREOF, ONE OF SAID PAIRS OF TRACKS RECEIVING THE ROLLERS OF THE INTERMEDIATE MOVABLE SECTION THEREIN, AND ANOTHER PAIR OF SAID TRACKS RECEIVING THE ROLLERS OF SAID MOVABLE END SECTION THEREIN, THE TRACKS FOR SAID INTERMEDIATE MOVABLE SECTION BEING LATERALLY OFFSET WITH RESPECT TO THE TRACKS OF SAID MOVABLE END SECTION, SAID MOVABLE SECTIONS BEING SHIFTABLE RELATIVE TO SAID FIXED SECTION LONGITUDINALLY OF THE VEHICLE BETWEEN AN EXTENDED POSITION AND RETRACTED POSITION, SAID SECTIONS BEING DISPOSED IN TELESCOPING RELATION WHEN IN SAID RETRACTED POSITION, SAID FIXED SECTION AND SAID MOVABLE END SECTION EACH HAVING A CONTINUOUS TRANSVERSELY EXTENDING FLANGE AT ONE END THEREOF AND SAID INTERMEDIATE MOVABLE SECTION HAVING FLANGES AT OPPOSITE ENDS THEREOF, THE FLANGES ON ONE OF SAID SECTIONS BEING DISPOSED IN OBSTRUCTING INTERLOCKING RELATION WITH THE FLANGES ON THE NEXT ADJACENT SECTION WHEN SAID SECTIONS ARE IN THE EXTENDED POSITION, YIELDABLE COMPRESSIBLE SEAL MEANS ON THE FLANGE OF ONE OF SAID SECTIONS ENGAGING THE FLANGES OF THE OTHER SECTIONS WHEN THESE SECTIONS ARE IN EXTENDED POSITION TO FORM A SEAL BETWEEN ADJACENT OF SAID SECTIONS.