receives the force of wind when the vehicle is in motion is symmetrical for error proofing installation and translates the force of the wind to downward force of the wiper edge 34 to a vehicle 39 s windshield it further serves to provide wiping action without incurring a reduction on wipe quality due to side gusts and or due to head winds acting against the reverse side of the wiper element 32 during a normal wiping stroke exceeding a 90 degree position relative to the park position figs a 2 and a 3 illustrate both an assembled and unassembled view respectively of further embodiments of the present invention wherein the wind deflector 31 is comprised of a separate resilient element that is attached by means of a tongue 33 received in a groove 35 of the wiper body 30 positioned below the passage 48 for receiving encapsulated beam 39 the desired effect of the wind deflector can be application specific as shown in fig a 3 wherein wind deflector 31 comprises a thick sidewall yielding higher profile wiper assembly 10 wiper body 30 can be manufactured independently of beam 39 by over molding or co extruding beam 39 with the resilient wiper medium referring now to figs a 4 and a 5 a further embodiment of encapsulated beam assembly 10 of the present invention is shown comprising elongated resilient member 12 having a body 13 and a windscreen wiping edge 14 pivotally attached to a bottom side 15 thereof by a narrow flexible neck 16 body 13 further comprises a longitudinal passage 18 through which an elongated beam 19 of a predetermined stiffness is inserted thereby becoming encapsulated by resilient member 12 the shape of passage 18 is generally complementary to the shape of encapsulated beam 19 thereby.