Concealed windshield wiper mechanism

Claim 1

A WINDSHIELD CLEANING MECHANISM FOR A VEHICLE HAVING A WINDSHIELD, A COWL WITH A TRANSVERSELY EXTENDING WELL HAVING AN ACCESS OPENING AND HINGED COVER MEANS FOR CLOSING THE ACCESS OPENING, INCLUDING, A PAIR OF SPACED OSCILLATABLE WINDSHIELD CLEANER ASSEMBLIES, DRIVE MEANS FOR SAID CLEANER ASSEMBLIES INCLUDING A VARIABLE THROW CRANK OPERABLE TO IMPART CONJOINT OSCILLATION TO PARKED CLEANER ASSEMBLIES ACROSS THE OUTER SURFACE OF SAID WINDSHIELD AND TO MOVE THE CLEANER ASSEMBLIES TO PARKED POSITIONS WHEREIN SAID CLEANER ASSEMBLIES ARE DISPOSED WITHIN SAID WELL, COVER OPERATING LINKAGE MEANS DRIVINGLY CONNECTED TO, AND AUTOMATICALLY ACTUATED UPON VARIATION IN THE THROW OF SAID CRANK DURING MOVEMENT OF SAID CLEANER ASSEMBLIES BETWEEN THEIR PARKED AND OPERATING POSITIONS FOR POSITIVELY OPENING SAID COVER MEANS DURING MOVEMENT OF SAID CLEANER ASSEMBLIES TO THEIR OPERATING POSITION AND POSITIVELY CLOSING SAID COVER MEANS DURING MOVEMENT OF SAID CLEANER ASSEMBLIES TO THEIR PARKED POSITION, AND OVER-CENTER ACTUATED TOGGLE SPRING MEANS OPERATIVELY CONNECTED WITH SAID COVER MEANS FOR ASSISTING IN MOVING SAID COVER MEANS BETWEEN OPEN AND CLOSED POSITIONS AND FOR MAINTAINING SAID COVER MEANS IN EITHER ITS OPEN OR CLOSED POSITION.