Encapsulated beam with anti-rotation system

Abstract

An improved windshield wiper blade assembly having a resilient windscreen wiping element and further comprising a longitudinal passage there through. A support beam having a predetermined curvature and shape is positioned there within the passage having a generally complementary cross section to the longitudinal passage, preventing the rotational twisting of the resilient element around the beam. A further embodiment comprises a longitudinal fluid passage along the support beam in fluid connection to a windshield fluid supply. A plurality of apertures through the resilient member in connection with the fluid passage provide for the selective discharge of the fluid upon the windscreen. A still further embodiment comprises a wind deflector portion running at least partially along the resilient member for enhanced prevention of any twisting of the resilient member around the beam and increased downward force of the wiper assembly against the windscreen.

1 . A windscreen wiping blade assembly for vehicles comprising: 
 an elongated, resilient wiping member having at least one continuous wiping edge for uninterrupted contact with the surface of a windscreen of a vehicle, said resilient member further comprising at least one longitudinal passage, running through the length of the wiping member;    at least one elongated, semi-rigid beam member for insertion within said longitudinal passage of said resilient member, said beam member having a cross section complementary to the cross section of said longitudinal passage, preventing said resilient member from rotating independently from said beam member when inserted; and    an attachment means for detachably attaching the windscreen wiping blade assembly to an selectively oscillating wiper arm of a vehicle, said attachment means detachably attached to said blade assembly proximal the mid point of the wiping blade assembly, with or without direct contact with said beam member.    
     
     
         2 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a rectangular cross section.  
     
     
         3 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a spiral cross section.  
     
     
         4 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a progressively twisting rectangular cross section.  
     
     
         5 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a triangular cross section.  
     
     
         6 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a round cross section.  
     
     
         7 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member has a half-round cross section.  
     
     
         8 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member is of a one-piece construction.  
     
     
         9 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member is of laminate construction.  
     
     
         10 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member is assembled into said resilient member after forming.  
     
     
         11 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member is over molded with said resilient member.  
     
     
         12 . The windscreen wiping blade assembly of  claim 1 , wherein said at least one beam member is co-extruded with said resilient member.  
     
     
         13 . The windscreen wiping blade assembly of  claim 1 , further comprising a symmetrical, upward extending wind deflector portion comprising a ridge running longitudinally at least a partial length of said resilient member, positioned opposite said beam member from said continuous wiping edge, said wind deflector portion utilizing wind force to provide downward force, further preventing said resilient member from rotating independently from said beam member.  
     
     
         14 . The windscreen wiping blade assembly of  claim 13 , wherein said wind deflecting portion is separate from said resilient member.  
     
     
         15 . The windscreen wiping blade assembly of  claim 1 , wherein said wiping edge is a separate element, attached to said resilient member after forming.  
     
     
         16 . A windscreen wiping blade assembly for vehicles comprising: 
 an elongated, resilient wiping member having at least one continuous wiping edge for uninterrupted contact with the surface of a windscreen of a vehicle, said resilient member further comprising at least one longitudinal passage, running through the length of the wiping member;    at least one elongated, semi-rigid beam member for insertion within said longitudinal passage of said resilient member, said beam member having a cross section complementary to the cross section of said longitudinal passage, preventing said resilient member from rotating independently from said beam member when inserted, said cross section of said beam member selected from one of the following groups: rectangular, spiral, progressively-twisting rectangular, round, half-round, triangular;    an attachment means for detachably attaching the windscreen wiping blade assembly to a selectively oscillating wiper arm of a vehicle, said attachment means detachably attached to said blade assembly proximal the mid point of the wiping blade assembly, with or without direct contact with said beam member; and    an upward extending wind deflector portion comprising a ridge running longitudinally at least a partial length of said resilient member, positioned opposite said beam member from said continuous wiping edge, said wind deflector portion utilizing wind force to further prevent said resilient member from rotating independently from said beam member.    
     
     
         17 . The windscreen wiping blade assembly of  claim 16 , wherein said wind deflecting portion is formed in said resilient member.  
     
     
         18 . The windscreen wiping blade assembly of  claim 16 , wherein said wind deflecting portion is separate from said resilient member.  
     
     
         19 . The windscreen wiping blade assembly of  claim 16 , wherein said wind deflecting portion is separate from said resilient member.  
     
     
         20 . The windscreen wiping blade assembly of  claim 16 , wherein said at least one beam member is assembled into said resilient member after forming.  
     
     
         21 . The windscreen wiping blade assembly of  claim 16 , wherein said at least one beam member is over molded with said resilient member.  
     
     
         22 . The windscreen wiping blade assembly of  claim 16 , wherein said at least one beam member is co-extruded with said resilient member.  
     
     
         23 . The windscreen wiping blade assembly of  claim 16 , wherein said wiping edge is a separate element attached to said resilient member after forming.  
     
     
         24 . A windscreen wiping blade assembly for vehicles comprising: 
 an elongated, resilient wiping member having at least one continuous wiping edge for uninterrupted contact with the surface of a windscreen of a vehicle, said resilient member further comprising at least one longitudinal passage, running through the length of the wiping member;    at least one elongated, semi-rigid beam member for insertion within said longitudinal passage of said resilient member, said beam member having a cross section complementary to the cross section of said longitudinal passage, preventing said resilient member from rotating independently from said beam member when inserted, said cross section of said beam member selected from one of the following groups: rectangular, spiral, progressively-twisting rectangular, round, half-round, or triangular;    an attachment means for detachably attaching the windscreen wiping blade assembly to an selectively oscillating wiper arm of a vehicle, said attachment means detachably attached to said blade assembly proximal the mid point of the wiping blade assembly, with or without direct contact with said beam member; and    a symmetrical, upward extending wind deflector portion comprising a ridge running longitudinally at least a partial length of said resilient member, positioned opposite said beam member from said continuous wiping edge, said wind deflector portion utilizing wind force to further prevent said resilient member from rotating independently from said beam member;    wherein said longitudinal passage further comprises a channel means for selectively transporting fluid from at least one input aperture having a fluid connection with a remote source of fluid, throughout the entire length of said longitudinal passage, wherein said fluid discharges out one or more spaced discharge apertures along the length of the resilient member onto the wind screen of the vehicle, said wiping blade assembly comprising a sealing means to prevent fluid from discharging from the ends of said longitudinal passage.    
     
     
         25 . The windscreen wiping blade assembly of  claim 24 , wherein said channel means is a separate passage running parallel to said longitudinal passage receiving said beam member.  
     
     
         26 . The windscreen wiping blade assembly of  claim 24 , wherein said discharge apertures are positioned on at least one lateral side of said resilient member.  
     
     
         27 . The windscreen wiping blade assembly of  claim 24 , wherein said discharge apertures are positioned on a bottom side of said resilient member proximal said wiping edge.  
     
     
         28 . The windscreen wiping blade assembly of  claim 24 , wherein said wind deflecting portion is formed in said resilient member.  
     
     
         29 . The windscreen wiping blade assembly of  claim 24 , wherein said wind deflecting portion is separate from said resilient member.  
     
     
         30 . The windscreen wiping blade assembly of  claim 24 , wherein said at least one beam member is assembled into said resilient member after forming.  
     
     
         31 . The windscreen wiping blade assembly of  claim 24 , wherein said at least one beam member is over molded with said resilient member.  
     
     
         32 . The windscreen wiping blade assembly of  claim 24 , wherein said at least one beam member is co-extruded with said resilient member.  
     
     
         33 . The windscreen wiping blade assembly of  claim 24 , wherein said wiping edge is a separate element attached to said resilient member after forming.