Patent ID: 7506400

Claim:
Wiper arm ( 10 , 28 , 42 , 44 ) for use on a vehicle window, the wiper arm having at least one fan nozzle ( 20 , 46 , 70 , 88 ) through which wash water is sprayed on an as-needed basis in a fan stream ( 22 , 54 , 76 , 78 , 90 , 94 , 98 , 102 , 106 , 110 , 114 ) onto a part of the vehicle window ( 68 ) in front of a wiper blade ( 16 , 18 ; 36 , 48 ) in the direction of movement ( 58 , 59 ) of the wiper arm, wherein the fan nozzle ( 20 , 46 , 70 , 88 ) is configured such that, when the wiper arm is used on the vehicle window under normal operating conditions, the fan stream ( 22 , 54 , 76 , 78 , 90 , 94 , 98 , 102 , 106 , 110 , 114 ) hits the vehicle window ( 68 ) in the area of an impact line ( 24 , 56 , 80 , 82 , 92 , 96 , 100 , 104 , 108 ), such that the impact line ( 24 , 56 , 80 , 82 , 92 , 96 , 100 , 104 , 108 ) essentially runs parallel to the wiper blade ( 16 , 18 ; 36 , 48 ) such that the length of the impact line ( 24 , 56 , 80 , 82 , 92 , 96 , 100 , 104 , 108 ) corresponds to substantially the entire length of the wiper blade ( 16 , 18 ; 36 , 48 ).