Device for dispensing liquid fluids

• US 5,992,474 A
• Filed: 09/17/1997
• Issued: 11/30/1999
• Est. Priority Date: 04/10/1997
• Status: Expired due to Fees

• Current Assignee: Scheidt & Bachmann GmbH
• Original Assignee: Scheidt & Bachmann GmbH
• Inventors: Miller, Gert
• Primary Examiner(s): Douglas, Steven O.
• Application Number:
  US08/932,290
• Time in Patent Office: 804 Days
• Field of Search: 141/44-46, 141/51, 141/83, 141/59, 141/192
• US Class Current: 141/59
• CPC Class Codes: B67D 7/0486 Pumps driven in response to electric signals indicative of pressure, temperature or liquid flow
• CPC Class Codes: B67D 7/08 Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred arrangement of flow- or pressure-control valves B67D7/36; computing, calculating, counting G06; coin-freed apparatus for dispensing fluids G07F13/00; prepayment devices for metering liquids G07F15/00

Abstract

In a dispensing device for dispensing liquid fuel from at least one underground storage tank through at least one fuel nozzle, wherein the liquid fuel is conveyed by a fuel pump from the underground storage tank to the fuel nozzle, wherein the amount of liquid fuel dispensed is measured by a measuring device including an impulse sender, wherein vapors are removed from the fuel tank to be filled by a vapor pump via a vapor removal opening provided at the fuel nozzle and returned into the underground storage tank via a vapor return line, the measuring device includes a computer producing data sets comprised of address bits, data bits, and check bits for a display correlated with the fuel pump, for a control unit of the vapor pump in order to control pumping output depending on the dispensed amount of liquid fuel, and for a central computing unit of a gas station. A network is provided for transmitting the data sets to the display, the control unit of the vapor pump, and the central computing unit of the gas station.

Claims

1. A dispensing device for dispensing liquid fuel from at least one storage tank through at least one fuel nozzle, wherein the liquid fuel is conveyed by a fuel pump from the at least one storage tank to the fuel nozzle, wherein the amount of liquid fuel dispensed is measured by a measuring device including an impulse sender, wherein vapors are removed from a fuel tank to be filled by a vapor pump via a vapor removal opening provided at the fuel nozzle, and are returned into the storage tank via a vapor return line, wherein the improvement comprises:

the measuring device including a computer producing data sets comprised of address bits, data bits, and check bits for a display electrically interconnected with the fuel pump, for a control unit of the vapor pump in order to control pumping output depending on the amount of liquid fuel being dispensed, and for a central computing unit of a gas station;

a network for transmitting the data sets to the display, the control unit of the vapor pump, and the central computing unit of the gas station.

2. A dispensing device according to claim 1, wherein said network is a BUS system.

3. A dispensing device according to claim 1, wherein said network is a CANBUS system.

4. A dispensing device according to claim 1, wherein said network provides for a serial data interchange between said display, said control unit, and said central computing unit for monitoring proper function, diagnosing errors, and remote-calibrating the measuring device.

5. A dispensing device according to claim 1, wherein the data sets are remote-transmitted to at least one service station or a diagnosis center.