Abstract: Gasoline dispensing apparatus with cost and volume registers composed of banks of rotary electromagnetic indicators, each having a two-coil electromagnetic stator for indexing a respective rotary indicator wheel, and a drive circuit for accumulating the cost and volume of fuel delivered and for indexing the indicator wheels of the banks thereof for registering the cost and volume of fuel delivered. The drive circuit is operable for indexing each indicator wheel with multiple step indexing cycles providing a predetermined multiple step energization sequence of the two coils of the electromagnetic stator. The drive circuit is operable for resetting the counter wheels by indexing the wheels in the forward direction to their "9" positions and then nine counts in the reverse direction to their "0" count positions where the wheels are retained against further reverse rotation by one-way locking pawls.

Abstract: A fuel delivery pump having a resettable register for registering the volume and cost amounts of each fuel delivery and employing conventional resettable volume counters and new electromagnetic cost counters composed of banks of decade modules, each having an electromagnetically positioned wheel and an electronic drive circuit for indexing the wheel in stepwise fashion by electromagnetically accelerating and then decelerating the wheel.

Abstract: A resettable electronic counter employing an integrated solid state calculator circuit element, or chip, includes counter reset circuitry for automatically resetting the counter. The calculator circuit provides timing signals and is responsive to timing signals selectively connected to an arithmetic and control section thereof for clearing a count stored in registers thereof and display means external thereto, for storing a selected count in the registers, and for cumulatively adding indexing signals to the stored count. The counter reset circuitry includes control logic and a sequence counter actuated by a reset signal to generate a series of step signals. The step signals and certain timing signals are connected to the control logic which is in turn connected to the arithmetic and control section of the calculator circuit.