Windshield cleaning apparatus

Claim 1

A WINDSHIELD CLEANING SYSTEM COMPRISING A WIPER UNIT INCLUDING A WIPER MOTOR, A WIPING ELEMENT, AND TRANSMISSION MEANS THEREBETWEEN; A COMBINED PUMP AND COORDINATOR UNIT CONSTITUTING AN ENTITY SEPARATE AND DISTINCT FROM SAID WIPER MOTOR AND ADAPTED TO BE MOUNTED PROXIMATE THERETO; FIRST CONTROL MEANS FOR PRODUCING SOLE OPERATION OF SAID WIPER UNIT WITHOUT ACCOMPANYING OPERATION OF SAID COMBINED PUMP AND COORDINATOR UNIT; SECOND CONTROL MEANS FOR PROVIDING JOINT OPERATION OF SAID WIPER UNIT AND SAID COMBINED PUMP AND COORDINATOR UNIT; SAID COMBINED PUMP AND COORDINATOR UNIT COMPRISING A BASE, A SHAFT JOURNALED IN SAID BASE, PUMP INCLUDING A PUMP SHAFT MOUNTED ON SAID BASE, MEANS ON SAID SHAFT ADAPTED TO BE COUPLED TO SAID WIPER MOTOR OUTPUT WHEREBY SAID WIPER MOTOR DRIVES SAID SHAFT, ECCENTRIC DISK MEANS MOUNTED ON SAID SHAFT, A FIRST STRAP MOUNTED ON SAID ECCENTRIC DISK MEANS, MEANS FOR SELECTIVELY COUPLING SAID FIRST STRAP TO SAID PUMP SHAFT, A SECOND STRIP COUPLED TO SAID ECCENTRIUC DISK MEANS, A RATCHET AND CAM ASSEMBLY MOUNTED FOR ROTATION ON SAID BASE, A PAWL DRIVEN BY SAID SECOND STRAP FOR ENGAGEMENT WITH SAID RATCHET, MEANS MOUNTED ON SAID BASE MEMBER AND RESPONSIVE TO THE MANIPULATION OF SAID SECOND CONTROL MEANS FOR ROTATING SAID RATCHET AND CAM ASSEMBLY, SWITCH MEANS ADAPTED TO BE ACTUATED INCIDENTIAL TO ROTATION OF SAID RATCHET AND CAM ASSEMBLY TO THEREBY ENERGIZE SAID WIPER MOTOR, MEANS RESPONSIVE TO THE ROTATION OF SAID RATCHET AND CAM ASSEMBLY FOR COUPLING AND PUMP SHAFT TO SAID FIRST STRAP AND THEREBY CAUSING THE ROTATION OF SAID SHAFT PRODUCED BY THE OPERATION OF SAID WIPER MOTOR TO DRIVE SAID PUMP TO THEREBY PROVIDED A PERIOD OF JOINT WIPER MOTOR AND WASHER PUMP OPERATION AND THEREAFTER TERMINATE SAID CONNECTION THEREBY PERMITTING SAID WIPER MOTOR TO CONTINUE IN OPERATION WITHOUT ACCOMPANYING PUMP OPERATION, SAID RATCHET INCLUDING MEANS ASSOCIATED THEREWITH TO PERMIT SAID WIPER MOTOR TO OPERATE WITHOUT PRODUCING ACCOMPANYING OPERATION OF SAID PUMP WHEN SAID FIRST CONTROL MEANS ARE ACTUATED.