Car wash apparatus

Claim 1

A BODY BRUSH UNIT FOR A VEHICLE WASHING LINE COMPRISING A TOP BODY BRUSH, CARRYING MEANS FOR SAID BRUSH MOUNTED FOR ACCOMMODATING SWINGING MOVEMENT OF SAID BRUSH BETWEEN A NORMALLY DOWN OPERABLE POSITION ENGAGEABLE WITH THE TOP SURFACE OF A VEHICLE AND AN INOPERABLE POSITION CLEAR OF SAID SURFACE, MEANS FOR ACTUATING SAID BRUSH CARRYING MEANS TO SAID INOPERABLE POSITION, CONTROL MEANS FOR SAID ACTUATING MEANS AND A PLURALITY OF INDEPENDENTLY OPERABLE DETECTOR MEANS OPERABLE UPON SAID CONTROL MEANS, SAID DETECTOR MEANS BEING OPERABLE BY MEANS CONSTITUTING AN OBJECTIONABLE OBSTRUCTION FOR SAID BRUSH UNIT AND BEING ARRANGED TRANSVERSELY OF SAID WASH LINE AND SUPPORTED BY SAID CARRYING MEANS, ONE OF SAID DETECTOR MEANS COMPRISING A PIVOTALLY MOUNTED, GENERALLY VERTICALLY SUSPENDED MEMBER ARRANGED AHEAD OF SAID BRUSH AND EXTERIORLY OF THE PERIPHERY OF SAID BRUSH AND A SECOND DETECTOR MEANS COMPRISING A MEMBER PIVOTALLY MOUNTED VERTICALLY SPEAKING ABOVE SAID FIRST MEMBER AND IN CLOSER PROXIMITY TO SAID CARRYING MEAN THAN SAID FIRST MEMBER, SAID SECOND MEMBER HAVING AN OBSTACLE INTERCEPTING LENGTH VERTICALLY SPEAKING, GREATER THAN SAID FIRST MEMBER AND WHICH VERTICALLY SPEAKING EXTENDS DOWNWARDLY PAST THE UPPER END OF SAID FIRST MEMBER.