Timing of the control and resetting motor in a fuel dispensing arrangement

In a fuel dispensing arrangement of the type comprised of a fuel dispensing nozzle, a fuel pump for pumping fuel to said fuel dispensing nozzle, an electric pump motor operative when energized by pump motor current for driving said fuel pump, a price calculator and indicator arrangement for calculating and indicating the price of the fuel pumped through said nozzle, a resetting arrangement which can be driven to effect resetting of said price calculator and indicator arrangement, and an electric control motor operative for driving said resetting arrangement, in combination therewith, a source of electrical energy;

• first means connecting said source of electrical energy to said pump motor and defining a pump motor current path for the flow of pump motor current through said pump motor current path from said source to said pump motor;
• and second means connecting said control motor to said pump motor current path and operative for controlling the operation of said control motor in dependence upon the flow of pump motor current through said pump motor current path, wherein said fuel dispensing arrangement further includes an auxiliary arrangement which can be driven by said control motor, and wherein said control motor is operative for performing a first operation in which it drives said resetting arrangement and a separate second operation in which it drives said auxiliary arrangement, and wherein said fuel dispensing nozzle has a rest position and a working position, and wherein said second means comprises means operative for initiating the performance by said control motor of said first operation in response to the assumption by said nozzle of said working position but only when there is no flow of pump motor current and means operative for initiating the performance by said control motor of said second operation in response to the assumption by said nozzle of said rest position but only when there is a flow of pump motor current.

In a fuel dispensing arrangement of the type comprised of a fuel dispensing nozzle, a fuel pump for pumping fuel to said fuel dispensing nozzle, an electric pump motor operative when energized by pump motor current for driving said fuel pump, a price calculator and indicator arrangement for calculating and indicating the price of the fuel pumped through said nozzle, a resetting arrangement which can be driven to effect resetting of said price calculator and indicator arrangement, and an electric control motor operative for driving said resetting arrangement, in combination therewith, a source of electrical energy;

• first means connecting said source of electrical energy to said pump motor and defining a pump motor current path for the flow of pump motor current through said pump motor current path from said source to said pump motor;
• and second means connecting said control motor to said pump motor current path and operative for controlling the operation of said control motor in dependence upon the flow of pump motor current through said pump motor current path, wherein said fuel dispensing arrangement further includes a printing arrangement which can be driven by said control motor and which is operative when so driven for printing and dispensing a customer's receipt, and wherein said control motor is operative for performing a first cycle of operation in which it drives said resetting arrangement and a separate second cycle of operation in which it drives said printing arrangement, and wherein said fuel dispensing nozzle has a rest position and a working position, and wherein said second means comprises means operative for initiating the performance by said control motor of said first operation in response to the assumption by said nozzle of said work position but only when there is no flow of pump motor current and means operative for initiating the performance by said control motor of said second operation in response to the assumption by said nozzle of said rest position but only when there is a flow of pump motor current.

In a fuel dispensing arrangement of the type comprised of a fuel dispensing nozzle, a fuel pump for pumping fuel to said fuel dispensing nozzle, an electric pump motor operative when energized by pump motor current for driving said fuel pump, a price calculator and indicator arrangement for calculating and indicating the price of the fuel pumped through said nozzle, a resetting arrangement which can be driven to effect resetting of said price calculator and indicator arrangement, and an electric control motor operative for driving said resetting arrangement, in combination therewith, a source of electrical energy;

• first means connecting said source of electrical energy to said pump motor and defining a pump motor current path for the flow of pump motor current through said pump motor current path from said source to said pump motor;
• and second means connecting said control motor to said pump motor current path and operative for controlling the operation of said control motor in dependence upon the flow of pump motor current through said pump motor current path, wherein said first means includes a pump motor switch comprising a moving first contact electrically connected to one terminal of said source of electrical energy and a stationary second contact electrically connected to one terminal of said pump motor, and wherein said second means includes a stationary third contact cooperating with said moving first contact and electrically engaged by the latter when said moving first contact is not in electrical engagement with said stationary second contact and a conductor having one end electrically connected to said third contact and having a second end, and means for establishing a complete current path for said control motor by connecting said second end of said conductor to one terminal of said control motor.

In a fuel dispensing arrangement of the type comprised of a fuel dispensing nozzle, a fuel pump for pumping fuel to said fuel dispensing nozzle, an electric pump motor operative when energized by pump motor current for driving said fuel pump, a price calculator and indicator arrangement for calculating and indicating the price of the fuel pumped through said nozzle, a resetting arrangement which can be driven to effect resetting of said price calculator and indicator arrangement, and an electric control motor operative for driving said resetting arrangement, in combination therewith, a source of electrical energy;

• first means connecting said source of electrical energy to said pump motor and defining a pump motor current path for the flow of pump motor current through said pump motor current path from said source to said pump motor;
• and second means connecting said control motor to said pump motor current path and operative for controlling the operation of said control motor in dependence upon the flow of pump motor current through said pump motor current path, wherein said first means includes a pump motor switch comprising a moving first contact electrically connected to one terminal of said source of electrical energy and a stationary second contact electrically connected to one terminal of said pump motor, and wherein said second means includes a stationary third contact cooperating with said moving first contact and electrically engaged by the latter when said moving first contact is not in electrical engagement with said stationary second contact, a first conductor having a first end electrically connected to said third contact and having a second end, a second conductor having a first end electrically connected to said second contact and having a second end, and means for establishing a complete current path for said control motor by alternatively connecting said second end of said first conductor to one terminal of said control motor or else by connecting said second end of said second conductor to one terminal of said control motor.