GASOLINE PUMP

Abstract: A gasoline pump system (1) for the concurrent filling of more than one vehicle, tank or container with gasoline or other liquid petroleum products comprising a plurality of fuel outlets (31-34), each for delivering a different type of fuel, wherein each outlet is supplied from a reservoir containing one type of fuel and further includes flowmeter means for measuring the amount of fuel delivered, a plurality of sets of interface means with a station operator, each set relating to one serviced car; and digital controller means for receiving electrical signals from the interface means, further including output means for activating the pumps for the desired fuel type responsive to the electrical signals, input means for receiving signals indicative of the amount of fuel delivered from the flowmeter means, computer means for computing filling-related information and means for a separate display of the filling-related information, for each type of fuel delivered.

Description: GASOLINE PUMP TECHNICAL FIELD The present invention relates to gasoline pumps, and more particularly to a gasoline pump with means for concurrently serving more than one car. BACKGROUND OF THE INVENTION Old mechanical gasoline pumps are now being replaced by new, electronic pumps. The new pumps have various benefits, for example a digital precise readout and a capability to update prices. The pump may be automatically controlled to deliver fuel up to a certain amount as desired. It was found by the present inventor, these benefits notwithstanding, that the new electronic pumps have a certain disadvantage with respect to the older pumps. The old pumps had several outlets, corresponding to several types of vehicle fuel. Each outlet had a delivery pipe that was connected to the fuel tank in the car, and a flowmeter to measure the quantity of fuel being delivered. When one car was filled with one type of fuel, a second car could be connected to another outlet to be filled as well. The new electronic pump also has several outlets for the various types of fuel, however it only has one flowmeter. As the desired fuel type is chosen and the corresponding outlet is coupled to the car, the flowmeter will measure the quantity of flow for that outlet. The display will indicate the cost to customer. A problem in the new pump is that, when one outlet is being used, all the other outlets are inactive. It is, therefore, impossible to fill a second car while the first car is being filled. Prior art systems apparently do not address this problem. Thus, Bickford, US Patent 3,639,735 discloses a multiple product gasoline dispensing pump with two multiple product gasoline subsystems independently operable from opposite side of the pump fo selectively dispensing one from a plurality of different grades of gasoline. Krone et al., USPatent 3,847,302 discloses a system for dispensing of multiple grades of gasoline which uses electronic computational and control devices to meter selected grades of gasoline, and, in particular, refers to blending gasoline at different octane ratings to give an intermediate octane rating and a control relay means actuable to enable delivery flow of multiple grades of gasoline. Callahan et al., US Patent 4,100,400, discloses a gasoline pump price encoder for delivering pulses corresponding to the price of gasoline or other liquid petroleum products dispensed by a pump. The encoder is removably mounted on the existing mechanical price computer in the pump and includes an input gear for engaging a drive gear on the computer. A pulse generator coupled to the input gear provides pulses at a higher rate than required for the output, that is reduced by a counter to provide a desired number of pulses per unit price. Pearson et al., US Patent 4,107,777 discloses a fuel dispensing system and more particularly a control and display system for the fully automated self-service operation of a gasoline station. It discloses dispensing pumps previously known located at a distance from the operator console , each pump providing a choice of the grade of fuel available. The dispensing units as disclosed enable the customer to dispense the grade of product he requires and for the details to be monitored from a centralized console. Callahan et al., US Patent 4,242,575, discloses a gasoline pump digital price encoder for delivering pulses corresponding to the price of gasoline or other liquid petroleum products dispensed by a pump. The encoder is removably mounted on the existing mechanical price computer in the pump and includes an input gear for engaging a drive gear on the computer. A pulse generator coupled to the input gear provides pulses at a higher rate, that is reduced by a counter to provide a desired number of pulses per unit price. Pusic, US Patent 4,900,906, discloses an automated fuel pump controlling system. The system comprises debit card vending apparatus with automated means for accepting the payment either in cash, credit or IC cards, means for automated verifying of the payment methods and means for issuing a system's debit card, and gasoline pump controlling apparatus, said apparatus comprising automated means for controlling the operation of said fuel pump activity according to information obtained from said system's debit card. Means to allow a user of said debit card vending apparatus to enter required information are also provided. The two said apparatuses are located separately, each having its own microprocessor for controlling the tasks to be performed. Byon, US Patent 5,890,718, discloses a self-service gasoline pump system with game function. The gasoline pump system includes game functions in which a plurality of gasoline dispensers or pumps are respectively provided with a game device. While a pump dispenses gasoline, the game device performs a game automatically whenever a predetermined certain amount of gasoline or charge is reached, or manually whenever the user pushes a button for starting games, so as to offer premiums to the user. Schiller, et. al., US Patent 5,884,607, discloses a fuel delivery system for a vehicle. It has been determined that a fuel delivery system with a fuel supply line and electromagnetically actuatable fuel injection valves produce fuel oscillations during opening and closing of the fuel injection valves and therefore generates noise, which annoys the passengers. In order to damp this kind of noise, at least one elongated, hollow damping body is connected at right angles to the fuel supply line and has a closed end. Hartsell, Jr., US Patent 5,868,179, discloses a precision fuel dispenser. It has a receiver capable of receiving fueling parameters transmitted from the vehicle. The fueling parameters relate to information about tank size and maximum allowed fueling rates, among others. Based on these fueling parameters, the fuel dispenser controls the fueling operation to optimize fuel delivery and minimize fuel spillage. Bos, et. al., US Patent 5,902,985, discloses a system for providing service to a vehicle positioned at a service site and billing a person or company for the service provided. The vehicle is provided with a vehicle processing unit which includes a receiver-transmitter connected to a vehicle antenna and with element for manually activating the vehicle processing unit. The service site comprises element for providing service, a site processing unit which includes a receiver-transmitter connected to a site antenna, which site processing unit includes element for registering the transaction and means for billing the person or company for the service provided. The system further comprises means for automatically correlating the act of servicing the vehicle with the vehicle, which element may comprise a passive tag located at the element for providing service, element for energizing the passive tag located on the vehicle and a secondary antenna on the vehicle connected to the vehicle processing unit. The present invention addresses the problem of concurrently serving more than one car, as well as other problems in gasoline pumps. SUMMARY OF THE INVENTION The present disclosure relates to improvements in electronic pumps for dispensing gasoline or other liquid petroleum products to allow the concurrent filling of more than one vehicle,tank or container. If one pump can concurrently fill two cars, then the waiting time for each car other than the first is significantly reduced. This is an important benefit to customers and may increase the number of customers of a gas station. As cars approach the station and the drivers see several cars waiting, they may choose to avoid that station altogether, and drive to another station. In this way, business may be lost to the gas station owner. By providing means for concurrently serving more cars, the present invention may therefore increase the turnover of gas service stations, without the need to add more gasoline pumps. According to one aspect of the invention, the gasoline pump includes means for simultaneously handling two cars. The pump includes electronic means for inputting data from two flowmeters, each connected to a fuel outlet. For each outlet, the cost of the delivered fuel is computed based on the volume of delivered fuel, a predefined price list and the type of fuel selected. Display means display of the amount of delivered fuel and of the price for each car being serviced. The pump may include further display means that indicate what type of fuel was chosen by the car now filling. This may help another car driver to decide whether he/she can now use that pump as well. That is, if the second car needs a different type of fuel than that which is now filling, then the second car may be served concurrently with the first. According to another aspect of the invention, more than two cars may be serviced simultaneously, provided that each uses a different type of fuel. A practical approach uses the available components in the gasoline pump and the advanced capabilities that electronic devices can now provide at low cost. According to yet another aspect of the invention, the fuel delivery to each car may be individually controlled, for example by limiting the transaction to a specific amount. The scope and spirit of the invention are illustrated with the inclusion of specific applications thereof. Further objects, advantages and other features of the present invention will become obvious to those skilled in the art upon reading the disclosure set forth hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 illustrates a gasoline pump system with means for concurrently serving two vehicles. Figure 2 details the structure of a gasoline pump system with means for concurrently serving two vehicles. Figure 3 comprises photographs taken on a Wednesday and on a Friday at a gasoline station. Figure 4 illustrates a diagrammatic view from above of a possible implementation of the present invention, wherein the cars are located one behind the other. Figure 5 illustrates a diagrammatic view from above of a possible implementation of the present invention, wherein the cars are located one beside the other. Figure 6 illustrates a practical implementation of the present invention in a two sided gasoline pump station. DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention will now be described by way of example and with reference to the accompanying drawings. Figure 1 illustrates a gasoline pump system (1) with means for concurrently serving two vehicles. To this purpose, the system (1) includes two sets of interface means with a station operator, each set relating to one serviced car. The first set includes a first display (11), a first fuel selector (12) and a first control panel (13). Accordingly, the second set includes a second display (21), a second fuel selector (22) and second control panel (23). The gasoline pump system further includes outlets for several types of fuel, as illustrated with fuel A outlet (31), fuel B outlet (32), fuel C outlet (33) and fuel D outlet (34). METHOD OF OPERATION The following illustrates the operation of the gasoline pump system (1): A. A car arrives and the driver chooses a desired type of fuel, for example fuel type C; B. The station attendant chooses fuel C with select panel (12). The fuel pump for fuel type C may be activated immediately or with a specific command on control panel (13). The control panel (13) may also be used for other purposes, for example to set a desired amount for the filling or the desired volume of fuel; C. The car is filled with the desired fuel C, while the display (11) indicates relevant information like the volume of fuel and/or amount due. An additional display (4), visible to a driver entering the filling station, will indicate the type of fuel now being served. This will serve as an indication to other drivers, that this pump may now serve any type of fuel except fuel type C; D. If a second car arrives at the gasoline pump, its driver indicates the desired fuel type, for example type A. The station attendant sets the desired fuel using fuel selector (22), and optional control panel (23). Filling-related information for the second car is indicated on display (21). The procedure for the second car is identical to that for the first car as detailed above, with the exceptions that a second set of display/controls is used, and that fuel type C cannot be selected for the second car. The display (4) now indicates that no further cars can now be serviced at this pump, as the maximum of two cars has been reached. E. When a car finishes filling, the display (4) is updated accordingly. For example, when the first car leaves, then display (4) indicates that all types of fuel are available except type A. F. When no car is being served (for example, after the second car left as well) the display (4) will indicate that all types of fuel are available from the gasoline pump. End of method. Notes: 1. In the above method, the station may be of a self service type. In this case, the driver activates the pump controls. Also, part of the controls may be located in a location away from the gasoline pump. 2. The display (4) may indicate either the type of fuel now filling, or the types of fuel that can be served (that is, all the other types except the fuel now filling). Figure 2 details the structure of a gasoline pump system with means for concurrently serving two vehicles. For the sake of clarity, a pump with only three types of fuel is illustrated, though the principle will of course equally apply to any number of types. The operation of the system is controlled by an electronic controller (5). The controller (5) may be implemented with a microcomputer, a digital signal processor (DSP) or other digital device as known in the art. The controller (5) may have a parameters setting input (53), that may be used to set prices for the various fuel types etc. An additional display (4) indicates what type of fuel is now filling or what types of fuel are now available, to help drivers choose a gas pump. A first interface means set includes the first fuel selector (12) and first control panel 13 that transfer user's commands to controller (5), and the first display (11) that indicates the filling status for a first car. Similarly, the second interface means set includes the second fuel selector (22) and second control panel (23) to transfer user's commands regarding a second car filling at the station, and the second display (21) that indicates filling status for that car. For fuel type A, there is a fuel A reservoir (311) with a fuel A pump 312 and a fuel A flowmeter (313) connected to a fuel A outlet (31) that delivers fuel to a car. When a user chooses fuel A, controller (5) activates pump (312) through a pump A control line (511). The flowmeter (313) transfers its reading to the controller (5) through a fuel A sense line (521). Controller (5) disolavs the volume of delivered fuel based on the information from the flowmeter (313). The controller (5) computes the cost of the fuel according to the fuel price list in its memory and the volume of fuel, and displays the cost as well. The system may further include automatic sensor means (not shown) for stopping the pump (312) when the tank is filled, as is known in the art. The controller (5) may be also notified that the pump was stopped, so that another car may be received. Alternately, controller (5) may stop the pump (312) responsive to a sensor's indication that the tank is full. Similarly, for fuel type B there is a fuel B reservoir (321) connected to a fuel B pump (322), a fuel B flowmeter (323) and a fuel B outlet (32). The pump (322) is activated through pump B control line (512) under the supervision of the controller (5). A fuel B sense line (522) is used to transfer flowmeter (323) readings to the controller (5). For fuel type C, there is a fuel C reservoir (331) connected to a fuel C pump (332), a fuel C flowmeter (333) and a fuel C outlet (33). Controller 5 can activate pump (332) through pump C control line (513). The flowmeter (333) readings are transferred to controller (5) through a fuel C sense line (523). The modular structure detailed above may be used for a larger system, with more fuel types. Each fuel type requires a separate reservoir and may use a separate pump and flowmeter. In another embodiment, a fuel selector (not shown) may be used, in which case less pumps and fiowmeters may be required. It may be possible to serve more than two cars concurrently. An electronic controller (5) may handle a plurality of cars, with more pumps being activated concurrently and more flowmeter readings being processed. In this case, more control sets may be required, each relating to one car being filled. In this case,' the additional display (4) may indicate several types of fuel now being served. For the sake of clarity, the above description refers to a system with only one active side, that is a device wherein there are fuel outlets, displays and control means only on one side of the device. In practice, however, pump systems usually have two units back to back. Each unit is activated independently of the other. For three types of fuel, there are two sets of three fuel outlets, for a total of six outlets per device. For an electronic system, the above detailed problem exists for each pump unit - only one fuel outlet may be active at any given moment. The present invention may also be applied to the dual unit system. To each of the two units therein, a controller may be provided as previously detailed, that allows two outlets to be concurrently active. For each of the two units, an additional display indicates the type of fuel now being served, or the types of fuel available, if any. The dual unit allows for a more effective implementation, wherein a common controller controls the two units. That is, one electronic device may receive information from all the fiowmeters in the two units and from all the control panels. It will concurrently respond to control the two units, each according to its state and its operator's commands. The above embodiment for a dual pump system may be applied to the various systems and methods detailed in the present disclosure. Throughout the present disclosure, it is to be understood that the electronic controller need not control several devices simultaneously. A digital computer, controller or microcomputer may supervise a wide variety of devices like control panels, fiowmeters, pumps, etc. Usually, the controller will access these devices sequentially. The high speed of modern digital controllers ensures a fast response to any event in any of the su ervised devices. For all practical purposes, the computer controls the concurrent operation of two • or more pump units. This implementation is made possible with the very fast electronic computers now available. The controller includes input/output means as known in the art for interfacing with the various devices in the gasoline pump system. Although the present disclosure illustrates, by way of example, the invention being applied to a specific type of gasoline pump, it is to be understood that it may be applied as well to various gasoline pump structures, without departing from the scope and spirit of the present invention. In one embodiment of the invention, new gasoline pump systems may be manufactured with a capability to concurrently fill two or more cars. In another embodiment, existing gasoline pump systems may be retrofitted with the addition of a new digital controller. Wherever necessary, interface means with existing fuel pumps, fiowmeters and/or other devices therein may be provided as well. This will improve existing gasoline pump systems by adding the capability to concurrently serve more than one car. Similarly, in another embodiment, not only vehicles can be served by the gasoline pump but also any tank, can or other container. Research work has been conducted for investigating the utility of the invention. One research issue relates to the practical feasibility of bringing two cars so close to the same gasoline pump system, as to allow simultaneous filling of both cars. Is there enough free space available in a gas station, to allow bringing two cars close enough to the same gasoline pump system? Another research issue refers to the assumption that, if space permits, then any gas station will include the maximal number of gasoline pump systems possible therein, to allow simultaneous filling of all the cars present. To answer these questions, the applicant has investigated the actual filling operations at gas stations. The attached photographs (Fig. 3) were taken on a Wednesday and a Friday at the Paz Allenby gas station on 99 Derech Hebron, Jerusalem. Several conclusions have been drawn from this research, as follows: 1. Yes, apparently it is practically feasible to fill two cars simultaneously from the same gasoline pump system, while the cars are located on the same side of the pump. The invention may not be applicable in gas stations where there is not enough room for two cars to be close enough to the same gasoline pump system. In many gas stations, however, there is enough space for two cars to be filled simultaneously from the same gasoline pump system. Therefore, the present invention can be used in part of the gas stations, where there is room enough for two cars to be brought close to the same gasoline pump system. To illustrate an example of the feasibility of the invention, the attached Photograph A clearly shows two cars close to a gasoline pump system, both cars located on the same side of the pump. Both cars could be simultaneously filled, if the gasoline pump system were improved according to the present invention. At present, just one car can be serviced at one time. 2. Actually, there are two possible ways to use the invention: the two cars can either be located one after the other, as illustrated, or side by side. Photograph A indicates there is plenty of room for two cars to be located side by side, on the same side of the gasoline pump system. The attached Photograph B also illustrates the two possible ways of concurrent filling of two cars: there are three cars near the gasoline pump system. Two of them could be filled simultaneously using the present invention. See also Figs. 4, 5 and 6 below and the related description. The above conclusion refers to cars located on the same side of the gasoline pump system, since the present invention teaches of a device for filling two cars from the same side of the pump. This represents an improvement over existing gasoline pumps, which can only fill one car on each side of the pump. At present, gasoline pump systems can concurrently fill two cars using two pumps, each located on one side of the device. The present invention allows to concurrently fill four cars from the same gasoline pump system, by filling two cars from each side of the pump. Using the present invention, therefore, allows a gas station to service more customers, faster. 3. There is a need for the present invention, since at rush hours there are many cars waiting at a gas station. The attached Photograph B illustrates the long queue of cars waiting on a Friday at a gas filling station. Therefore, it appears that the present invention is particularly useful during rush hours such as on Fridays, when the workload is at a maximum and there are many cars waiting. 4. Preferably, one of the fuel hoses may be made longer, to be capable of reaching a car which is located farther away from the gasoline pump system 1. In actual use, the first car or the car which is closer to the pump will be filled using the shorter hose, whereas the second car or the farthest car will be filled from the lon er hose. Fig. 4 illustrates a top view of one possible case, wherein the cars 61 and 62 are located one after the other, both on the same side of the gasoline pump system 1. In this case, car 61 can use the shorter hose, whereas car 62 may use the longer hose. Fig. 5 illustrates a top view of a second possible case, wherein the cars 63 and 64 are located side by side, both on the same side of the gasoline pump system 1. In this case, car 63 can use the shorter hose, whereas car 64 may use the longer hose. Fig. 6 illustrates a practical implementation of the invention in a two-sided gasoline pump station 1. One side of the pump can now service two cars 61 and 62, and the other side can service the two cars 63 and 64. In prior art electronic pumps, each side of the pump could only service one car. Thus, a gasoline pump system using the present invention can service twice as many cars as prior art systems. The actual improvement in throughput depends on the actual topology of each gas station. Some gas stations, where there is less room available, may not be capable of using the present invention to full benefit, and there may be gas stations where the invention cannot be used at all. Where applicable, the use of the invention can reduce the waiting time at gas stations and will increase the profits of gas station owners due to increased efficiency and better use of the available resources.

Claims: CLAIMS What is claimed is: 1. A gasoline pump system for the concurrent filing of more than one vehicle, tank or container with gasoline or other liquid petroleum products comprising: A. a plurality of fuel outlets, each for delivering a different type of fuel, wherein each outlet is supplied from a reservoir contaimng one type of fuel and further includes flowmeter means for measuring the amount of fuel delivered; B. a plurality of sets of interface means with a station operator, each set relating to one serviced car; and C. digital controller means for receiving electrical signals from the interface means, further including output means for activating the pumps for the desired fuel type responsive to the electrical signals, input means for receiving signals indicative of the amount of fuel delivered from the flowmeter means, computer means for computing filling-related information and means for a separate display of the filling-related information, for each type of fuel delivered. 2. The gasoline pump system according to claim 1, wherein two such systems are installed on the two sides of a device for concurrent filling of cars on the two sides of the device. 3. The gasoline pump system according to claim 1, wherein the control means include fuel selector means for selecting the desired fuel type, for each outlet used for filling. 4. The gasoline pump system according to claim 3, wherein the fuel selector means include means for selecting any type of fuel for a first car being filled, and for a restricted fuel selection for a second car, wherein the restriction comprises in preventing the second car from being filled with the same type of fuel as the first car. 5. The gasoline pump system according to claim 1, wherein the control means include means for setting the parameters for a car's fuel filling. 6. The gasoline pump according to claim 1, further including an additional display for indicating the type or types of fuel being served at any instant in time. 7. In a gasoline pump system including a plurality of fuel outlets for several types of fuel, a digital controller for controlling the concurrent filling of a plurality of cars comprising: A. input/output means for connecting to a plurality of sets of interface means with a station operator in the gasoline pump system, wherein each set relates to one serviced car and comprising control means and display means; B. input means for connecting to a plurality of flowmeter means for measuring the amount of delivered fuel; C. output means for connecting to a plurality of fuel pumps to activate a pump or a plurality of pumps as desired; and D. digital means for activating one or more fuel pumps responsive to signals received through the interface means with the station operator, and for displaying filling-related information on the display means responsive to signals from the flowmeter means. 8. The digital controller according to claim 7, wherein two such controllers are installed in a device comprising two gasoline pump systems, and wherein the two systems are installed on the two sides of a device for concurrent filling of cars on the two sides of the device. 9. The digital controller according to claim 7, further including means for setting the parameters for a car's fuel filling. 10. A method for concurrent filling of two cars, comprising the steps of: A. a car arrives and the driver chooses a desired type of fuel from the available fuel types; B. the station attendant chooses the desired fuel type using a select panel, this activating a corresponding fuel pump; C. the car is filled with the desired fuel type, while a display means indicates relevant information like the volume of fuel and/or amount due, and an additional display indicates the type of fuel now being served; D. if a second car arrives, its driver indicates the desired fuel type, which must be different from that being served on the first car, this allowing two cars to be concurrently serviced.

Inventors: LITT ARYEH, LITT, ARYEH
Applicants: LITT ARYEH, LITT, ARYEH
Application year: 2000
Main classification: B67D5
IPC codes: B67D5