Apparatus for cleaning windshields

• US 3,257,951 A
• Filed: 08/04/1964
• Issued: 06/28/1966
• Est. Priority Date: 08/31/1963
• Status: Expired due to Term

• Current Assignee: Erich Kolb, Helmut Espenschied
• Original Assignee: Erich Kolb, Helmut Espenschied
• Inventors: HELMUT ESPENSCHIED, Kolb, Erich
• Application Number:
  US04/387,283
• Time in Patent Office: 693 Days
• US Class Current: 92/140
• CPC Class Codes: B60S 1/483 using a supply pump driven by the windscreen-wiper motor

Claims

1. IN A PUMP, PARTICULARLY IN A WASHER PUMP FOR SPRAYING A LIQUID SOLVENT ONTO THE WINDSHIELD OF A AUTOMOTIVE VEHICLE, IN COMBINATION, CYLINDER MEANS DEFINING A WORKING CHAMBER;

PISTON MEANS IN SAID CHAMBER, ONE OF SAID MEANS BEING MOVABLE WITH REFERENCE TO THE OTHER MEANS TO PERFORM ALTERNATING WORKING AND SUCTION STROKES;

ENERGY STORING MEANS ARRANGED TO STORE ENERGY WHEN SAID ONE MEANS MOVES IN A FIRST DIRECTION TO PERFORM A SUCTION STROKE, AND TO THEREUPON RELEASE SUCH ENERGY TO EFFECT MOVEMENT OF SAID ONE MEANS IN THE OPPOSITE DIRECTION SO THAT SAID ONE MEANS PERFORMS A WORKING STROKE;

DRIVE MEANS COMPRISING A RECIPROCABLE MOTION TRANSMITTING MEMBER OPERATIVE TO MOVE SAID ONE MEANS IN SAID FIRST DIRECTION;

AND MEANS FOR DISENGAGING SAID DRIVE MEANS FROM SAID ONE MEANS ON COMPLETION OF EACH SUCTION STROKE SO THAT THE SPEED AT WHICH SAID ONE MEANS MOVES IN THE OPPOSITE DIRECTION IS DETERMINED SOLELY BY THE RATE AT WHICH SAID ENERGY STORING MEANS RELEASES ENERGY, SAID DISENGAGING MEANS COMPRISING AN ACTUATING MEMBER COUPLED TO SAID ONE MEANS, A DEFORMABLE TOGGLE JOINT INCLUDING A FIRST AND A SECOND LINK, SAID FIRST AND SECOND LINKS HAVING FIRST ENDS PIVOTALLY CONNECTED TO EACH OTHER AND SECOND ENDS RESPECTIVELY PIVOTED TO SAID MOTION TRANSMITTING MEMBER AND SAID ACTUATING MEMBER, RELEASABLE LOCKING MEANS FOR HOLDING SAID TOGGLE JOINT AGAINST DEFORMATION BY SAID ENERGY STORING MEANS WHILE SAID MOTION TRANSMITTING MEANS MOVES SAID ONE MEANS IN SAID FIRST DIRECTION THROUGH THE INTERMEDIARY OF SAID ACTUATING MEMBER, AND RELEASING MEANS OPERATIVELY CONNECTED WITH SAID MOTION TRANSMITTING MEMBER FOR TEMPORARILY RELEASING SAID LOCKING MEWANS IN SUCH POSITION OF SAID MOTION TRANSMITTING MEMBER IN WHICH THE LATTER HAS MOVED SAID ONE MEANS SUFFICIENTLY TO COMPLETE A SUCTION STROKE WHEREBY SAID TOGGLE JOINT IS DEFORMED BY SAID ENERGY STORING MEANS WHILE SAID ONE MEANS PERFORMS A WORKING STROKE.