Windshield wiper blade assembly
First Claim
1. A WINDSHIELD WIPER ASSEMBLY COMPRISING A RESILIENT FLEXIBLE WIPING BLADE ELEMENT ADAPTED TO WIPE A WINDSHIELD, AN ARM-PRESSURE DISTRIBUTING ASSEMBLY ADAPTED TO RECEIVE PRESSURE FROM A WINDSHIELD WIPER ARM AND TRANSMIT SUCH PRESSURE TO SAID BLADE AT A PLURALITY OF POSITIONS ALONG ITS LENGTH, SAID PRESSURE-DISTRIBUTING ASSEMBLY COMPRISING A PLURALITY OF ELONGATE MEMBERS PIVOTALLY CONNECTED TO FORM AN ARTICULATED STRUCTURE WITH AN OUTERMOST PORTION OF AN UPPER MEMBER OVERLYING A PORTION OF A LOWER MEMBER OF LESS WDTH THAN SAID UPPER MEMBER, SAID UPPER MEMBER BEING FORMED TO CONSTITUTE AN AIRFOIL SHAPED AND DISPOSED SO THAT AIR CURRENTS EXERT AERODYNAMIC PRESSURE ON SAID UPPER MEMBER DOWNWARDLY TOWARD THE WINDSHIELD, THE UPPER FACE OF SAID UPPER MEMBER DEFINING A CONCAVE SURFACE AND THE LOWER FACE OF SAID UPPER MEMBER DEFINING A CONVEX SURFACE, SPACER MEANS IN FIXED RELATION TO ONE OF SAID MEMBERS AND IN PIVOTAL RELATION TO THE OTHER OF SAID MEMBERS TO PROVIDE A PIVOTAL CONNECTION BETWEEN SAID UPPER AND LOWER MEMBERS AND ADAPTED TO SPACE APART SAID UPPER AND LOWER MEMBERS IN A VERTICAL PLANE COMMON TO THE LONGITUDINAL AXES OF BOTH OF SAID MEMBERS, THE PART OF SAID SPACER MEANS BETWEEN SAID UPPER AND LOWER MEMBERS HAVING A SHEET-LIKE FORM LYING SUBSTANTIALLY IN A SECOND PLANE APPROXIMATELY PERPENDICULAR TO SAID VERTICAL PLANE SO AS TO PRESENT AN EDGE TO AIR FLOWING PERPENDICULARLY TO SAID VERTICAL PLANE AND TO PROVIDE A STRAIGHT THROUGH PASSAGE FOR SAID AIR BETWEEN THE LOWER SURFACE OF SAID OVERLYING PORTION AND THE TOP SURFACE OF SAID UNDERLYING PORTION DURING NORMAL OPERATION OF THE WIPER ASSEMBLY, SAID PART OF SAID SPACER MEANS BETWEEN SAID UPPER AND LOWER MEMBERS HAVING A WIDTH WHICH IS LESS THAN THAT OF SAID UPPER MEMBER AND NOT LESS THAN THAT OF SAID LOWER MEMBER, AND THE INTERSECTION OF SAID SECOND PLANE WITH SAID CONVEX SURFACE BEING NON-LINEAR.
0 Assignments
0 Petitions
Accused Products
-
Citations
1 Claim
-
1. A WINDSHIELD WIPER ASSEMBLY COMPRISING A RESILIENT FLEXIBLE WIPING BLADE ELEMENT ADAPTED TO WIPE A WINDSHIELD, AN ARM-PRESSURE DISTRIBUTING ASSEMBLY ADAPTED TO RECEIVE PRESSURE FROM A WINDSHIELD WIPER ARM AND TRANSMIT SUCH PRESSURE TO SAID BLADE AT A PLURALITY OF POSITIONS ALONG ITS LENGTH, SAID PRESSURE-DISTRIBUTING ASSEMBLY COMPRISING A PLURALITY OF ELONGATE MEMBERS PIVOTALLY CONNECTED TO FORM AN ARTICULATED STRUCTURE WITH AN OUTERMOST PORTION OF AN UPPER MEMBER OVERLYING A PORTION OF A LOWER MEMBER OF LESS WDTH THAN SAID UPPER MEMBER, SAID UPPER MEMBER BEING FORMED TO CONSTITUTE AN AIRFOIL SHAPED AND DISPOSED SO THAT AIR CURRENTS EXERT AERODYNAMIC PRESSURE ON SAID UPPER MEMBER DOWNWARDLY TOWARD THE WINDSHIELD, THE UPPER FACE OF SAID UPPER MEMBER DEFINING A CONCAVE SURFACE AND THE LOWER FACE OF SAID UPPER MEMBER DEFINING A CONVEX SURFACE, SPACER MEANS IN FIXED RELATION TO ONE OF SAID MEMBERS AND IN PIVOTAL RELATION TO THE OTHER OF SAID MEMBERS TO PROVIDE A PIVOTAL CONNECTION BETWEEN SAID UPPER AND LOWER MEMBERS AND ADAPTED TO SPACE APART SAID UPPER AND LOWER MEMBERS IN A VERTICAL PLANE COMMON TO THE LONGITUDINAL AXES OF BOTH OF SAID MEMBERS, THE PART OF SAID SPACER MEANS BETWEEN SAID UPPER AND LOWER MEMBERS HAVING A SHEET-LIKE FORM LYING SUBSTANTIALLY IN A SECOND PLANE APPROXIMATELY PERPENDICULAR TO SAID VERTICAL PLANE SO AS TO PRESENT AN EDGE TO AIR FLOWING PERPENDICULARLY TO SAID VERTICAL PLANE AND TO PROVIDE A STRAIGHT THROUGH PASSAGE FOR SAID AIR BETWEEN THE LOWER SURFACE OF SAID OVERLYING PORTION AND THE TOP SURFACE OF SAID UNDERLYING PORTION DURING NORMAL OPERATION OF THE WIPER ASSEMBLY, SAID PART OF SAID SPACER MEANS BETWEEN SAID UPPER AND LOWER MEMBERS HAVING A WIDTH WHICH IS LESS THAN THAT OF SAID UPPER MEMBER AND NOT LESS THAN THAT OF SAID LOWER MEMBER, AND THE INTERSECTION OF SAID SECOND PLANE WITH SAID CONVEX SURFACE BEING NON-LINEAR.
Specification
-
- Resources
-
Current AssigneeJohn W. Anderson
-
Original AssigneeJohn W. Anderson
-
InventorsAnderson, John W.
-
Application NumberUS04/420,632Time in Patent Office1,049 DaysField of SearchUS Class Current15/250.201CPC Class CodesB60S 1/3806 Means, or measures taken, f...
