Combination boat trailer and floating dry dock

Claim 1

A BOAT TRAILER AND FLOATING DOCK COMBINATION COMPRISING AN ELONGATED MAIN FRAME HAVING HITCH MEANS AT ITS FORWARD END ADAPTED FOR SECUREMENT TO A TOWING VEHICLE AND DEPENDINGLY SUPPORTED GROUND ENGAGING SUPPORT WHEELS, SAID COMBINATION INCLUDING A PAIR OF ELONGATED PONTOONS SUPPORTED FROM AND EXTENDING LONGIUDINALLY OF SAID MAIN FRAME IN LATERALLY SPACED RELATION AND DEFINING A REARWARDLY OPENING BOAT HULL RECEIVING SLIP THEREBETWEEN, BOAT HULL BOTTOM SUPPORTING CRADLE MEANS SUPPORTED FROM SAID MAIN FRAME AND DISPOSED BETWEEN SAID PONTOONS ADAPTED TO SUPPORT A BOAT HULL FROM THE BOTTOM THEREOF IN ELEVATED POSITION ABOVE THE SUPPORTING SURFACE FOR SAID SUPPORT WHEELS, THE REAR END OF SAID SLIP BEING FREE OF OBSTRUCTIONS FOR THE RECEPTION OF A BOAT HULL IN SAID SLIP, SAID PONTOONS BEING RIGIDLY INTERCONNECTED ADJACENT THE UPPER EDGES OF THE FORWARD ENDS THEREOF BY MEANS OF TRANSVERSE BRACE MEMBER, SAID PONTOONS EACH INCLUDING A PARTIAL COVER PANEL, MEANS PIVOTALLY SECURING ONE EDGE OF EACH PANEL TO THE CORRESPONDING PONTOON FOR ROTATION ABOUT AN AXIS EXTENDING LONGITUDINALLY ALONG THE INSIDE UPPER EDGE THEREOF FOR SWINGING MOVEMENT OF THE FREE EDGE PORTIONS OF SAID PANELS BETWEEN OPEN UPWARDLY PROJECTING SUBSTANTIALLY VERTICALLY DISPOSED POSITIONS AND CLOSED GENERALLY HORIZONTALLY DISPOSED POSITIONS WITH THE FORWARD EDGES OF SAID PANELS SUPPORTED FROM SAID TRANSVERSE BRACE MEMBER, A REMOVABLE TRANSVERSE BRACE MEMBER SECURED BETWEEN THE REAR ENDS OF SAID PONTOONS, THE REAR EDGES OF SAID PANELS BEING SUPPORTED FROM SAID REMOVABLE TRANSVERSE BRACE MEMBER WHEN SAID PANELS ARE IN THE CLOSED POSITIONS.