Blending type liquid dispensing unit

Claim 1

A LIQUID DISPENSING UNIT INCLUDING MEANS FOR DELIVERING DIFFERENT GRADES OF LIQUID COMPRISED OF PREDETERMINED PORTIONS OF A FIRST AND A SECOND LIQUID, SAID MEANS INCLUDING SEPARATE LINES THROUGH WHICH THE TWO LIQUIDS FLOW, AN ORIFICE PLATE INTERPOSED IN EACH LINE, A TAPERED PLUG MOVABLE INTO AND OUT OF THE OPENING IN EACH ORIFICE PLATE TO SEPARATELY CONTROL THE FLOW OF EACH LIQUID, MEANS FOR SIMULTANEOUSLY MOVING SAID PLUGS IN OPPOSITE DIRECTIONS WITH ONE PLUG BEING WITHDRAWN FROM ITS ASSOCIATED ORIFICE PLATE AS THE OTHER PLUG IS BEING INSERTED INTO ITS ASSOCIATED ORIFICE PLATE, REGISTER MEANS FOR INDICATING THE COST OF LIQUID DELIVERED, METERING MEANS HAVING A SINGLE OUTPUT, A VARIATOR DRIVEN BY THE SINGLE OUTPUT OF THE METERING MEANS AND HAVING AN ADJUSTABLE OUTPUT DRIVINGLY CONNECTED TO THE REGISTER MEANS, MEANS FOR ADJUSTING THE OUTPUT OF THE VARIATOR TO CORRESPOND TO THE UNIT PRICE TO THE GRADE OF LIQUID SELECTED, MEANS FOR SELECTING A DESIRED GRADE OF LIQUID, SAID SELECTING MEANS INCLUDING A CONTROL MEMBER MOVABLE TO A PLURALITY OF PREDETERMINED POSITIONS, SAID CONTROL MEMBER BEING OPERATIVELY CONNECTED TO SAID PLUG MOVING MEANS WHEREBY THE LATTER WILL BE RESPONSIVE TO MOVEMENT OF THE CONTROL MEMBER TO SAID PREDETERMINED POSITIONS IN WHICH POSITIONS THE PLUGS WILL CONTROL FLOW OF THE TWO LIQUIDS TO ESTABLISH THE PREDETERMINED PORTIONS OF SAID FIRST AND SECOND LIQUIDS FOR THE VARIOUS GRADES, AND COMMON MEANS FOR SIMULTANEOUSLY OPERATING SAID SELECTING MEANS AND SAID VARIATOR ADJUSTING MEANS SO THAT THE REGISTER MEANS WILL AUTOMATICALLY INDICATE THE COST OF ANY GRADE OF LIQUID DELIVERED AND AT THE ESTABLISHED UNIT PRICE THEREFOR.