US3771697A

US3771697A - Remote control fluid dispenser

Info

Publication number: US3771697A
Application number: US00170487A
Authority: US
Inventors: B Sasnett; R Ellis
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-08-10
Filing date: 1971-08-10
Publication date: 1973-11-13
Anticipated expiration: 1990-11-13
Also published as: CA960620A

Abstract

A remote control fluid dispenser having a conventional dispenser, such as a gasoline pump, and a control housing remote from the dispenser and connected thereto through electrical cables. The control housing contains a preset counter which can be manually set for each cycle to prescribe the quantity of fluid to be dispensed, before the dispenser automatically cuts off. The housing has a totalizing counter and a sales counter, these counters counting up, as the preset counter counts, down. Two solenoid valves are operative to control the flow of fluid from the dispenser. The first is the main solenoid valve which is about the same as found in conventional electric gasoline pumps, and, when opened will permit delivery through the nozzle at a normal rate. The second is a slow delivery or solenoid valve which when open will permit only a very limited delivery of fluid through the nozzle. Initially, both valves are opened when delivery starts. When, however, the preset counter counts down to a first prescribed amount, i.e., five cents, cam means on the counter causes the main solenoid valve to close and when it counts down to a lesser amount, i.e., zero cents, the cam means then causes the slow delivery valve to close. Emergency and automatic-manual switches are also contained on the panel.

Description

[1 1] 3,771,697 451 Nov. 13, 1973 tional dispenser, such as a gasoline pump, and a con- REMOTE CONTROL FLUID DISPENSER [75] Inventors: Bolling H. Sasnett, Jr., 910

trol housing remote from the dispenser and connected thereto through electrical cables. The control housing Edgewater Ct. N.E., Atlanta, Ga. 30328; Rutherford L. Ellis, Jr., Atlanta, Ga.

contains a preset counter which can be manually set for each cycle to prescribe the quantity of fluid to be dispensed, before the dispenser automatically cuts off. The housing has a totalizing counter and a sales said Bolling H. Sasnett, Jr., by said Ellis [73] Assig'nee:

as the preset counter, these counters counting up, counter counts, down.

22 Filed: Aug. 10,1971

[21] Appl. No.: 170,487

Two solenoid valves are operative to control the flow of fluid from the dispenser. The first is the main solenoid valve which is about the same as found in [52] U.S.222/l6,222/l7 n ti a electric g s pu p when Int.

[51] B67d 5/30 p n ill p mi liv ry hrough he nozzle at a 222/14-20, normal rate. The second is a slow delivery or solenoid Field of Search valve which when open will permit only a very limited delivery of fluid through the nozzle.

Initially, both valves are opened when delivery starts.

i.e., zero cents, the cam means then causes the slow delivery valve to close.

222/20 When, however, the preset counter counts down to a 194/13 first prescribed amount, i.e., five cents, cam means on 222/20 X the counter causes the main solenoid valve to close ZZZ/l6 and when it counts down to a lesser amount,

d a l S mmm bh k S oko RBRM Romanowski.........................

Il -ll Primary ExaminerRobert B. Reeves Assistant Examiner-Thomas E. Kocovsky fg z zgg g alrggllatlc-manual Swltches are also Attorney-Newton, Hopkins & Ormsby p ABSTRACT A remote control fluid dispenser having a conven- 6 Claims, 11 Drawing Figures 3,771,697 SHEET H LF 6 PATENIED NOV 1 3 I913 NON GM GT w x 8328 mum mum

....fi BBGD PAIENIEDNHV 13 ms SHEET 6 [F 6 Sin 8::

now [I mQ WEU E W 1 REMOTE CONTROL FLUID DISPENSER BRIEF SUMMARY OF THE INVENTION This invention relates to a Remote Control Fluid Dispenser and is more particularly concerned with a combination gasoline pump and a remote control box which programs the pump to deliver a prescribed amount of fluid, in the event a prepaid system is desired and permits the remote reading of the pump, for a post paid system or for a refund of any unused credit.

In the past, numerous self service stations have been proposed. Some of these stations employ coin operated pumps while others use a remotely controlled system in which a single attendant can program a plurality of pumps for delivering prescribed amounts of gasoline to an automobile..It is with this latter class that the present.

invention is involved.

Briefly, described, the present invention includes a dispenser which has the appropriate computer and pump for delivering measured quantities of liquid from a nozzle into the gasoline tank of an automobile. The pump is electrical, being driven by a motor so as to deliver the liquid through a main solenoid valve to the open nozzle. In parallel with the main solenoid valve is secondary or slow delivery solnoid valve which delivers only a small amount of liquid to the nozzle.

Electrical pulses generated by a switch which is synchronized with the computer indicate the quantity of fluid being delivered by the pump. These electrical pulses are fed by the cables to a box like housing and to three electrically operated counters contained therein. One counter is manually preset to thequantity or value and counts down from this prescribed amount.

In a modified form of the invention, a post-paymentonly mechanism is presented, wherein the preset counter and the solenoid valves are eliminated and'the control box permits the dispenser to be cut on or off. A counter totals the sales and a sales counter, which can be selectively set to zeroize each sale or cycle,provides a readout for the quantity of fluid delivered by the dispenser.

The two control mechanisms are interchangeable with each other and each will function with substantially all conventional gasoline pump mechanisms with but slight modification of thepump mechanism.

The other two counters i.e., the sale counter and the totalizer counter, count up, one counting from zero each cycle and the other continuously totaling the delivery of the quantity or value of liquid dispensed.

At the start of each cycle, the sale counter is automatically zeroized. The preset counter, as it approaches zero, trips the control switch to the solenoids of the two valves, the first tripping, de-energizing the solenoid of the main valve and the second tripping, deenergizing the solenoid of the slow delivery solenoid valve.

Accordingly, it is the object of the present invention to provide a remote control fluid dispenser which is inexpensive to manufacture, durable in structure and efficient in operation.

Another object of the present invention is to provide, in a remote control fluid dispenser, a control mechanism by which the dispenser may be programmed for self-service operation from a remote position.

Another object of the present invention is to provide, in a remote control fluid dispenser, a control having a few wires providing a simplified connection to an essentially conventional electrical pump.

Another object of the present invention is to provide a control for converting a conventional electrical gasoline pump type fluid dispenser into a remote control dispenser, said control being selectively capable of use with an electric motor reset type dispenser, or a semiautomatic reset dispenser of the type in which a spring is biased by the control lever, or a manual reset crankto-zero type dispenser.

Another object of the present invention is to provide an electrical control for a remote control fluid dispenser wherein the pump switch for various types of dispensers can be connected on the neutral or hot side, as desired.

Another object of the present invention is to provide a control for a remote control fluid dispenser having a few relays and wherein up to a 3/4 hp. pump motor may be connected directly to the circuit.

Another object of the present invention is to provide a control for a remote control fluid dispenser wherein the necessity for less than line voltage is eliminated, thereby requiring no transformer and no separate power supply.

Another object of the present invention is to provide a control for a remote control fluid dispenser wherein the sales counter is automatically zeroized or reset at the start of each cycle.

Another object of the present invention is to provide a remote control fluid dispenser in which, once the emergency switch is tripped, power is interrupted to the electrical circuitry thereof, until the start switch is tripped to begin a new cycle.

Another object of the present invention is to provide a control for a remote control fluid dispenser wherein, the totalizer counter continues to operate whether or not the control is on automatic or on manual and whether or not such switch is shifted, during operation.

Another object of the present invention is to provide, in the circuitry of a remote control fluid dispenser, inexpensive components including solid state parts.

Another object of the present invention is to provide a remote control fluid dispenser capable of being installed, with a plurality of other remote control fluid dispensers, so that a single operator may successively program all of them while, at the same time functioning as a teller to collect the money for the gasoline dispensed or to be dispensed.

Other objects, features and advantages of the present invention will become apparent from the following description when taken in conjunction with the following drawings wherein like characters of reference designate corresponding parts throughout the several views.

BRIEF DESCRIPTION OF THE DRAWINGS closed in FIG. 2;

FIG. 3A is a schematic wiring diagram similar to FIG. 3 but showing a'modified form of the circuitry thereof; FIG. 4 is a schematic wiring diagram of the electrical circuitry which is incorporated inthe dispenser of the present invention, wherein the fluid pump, itself, is remote from the dispenser; and the pump switch is in the hot side;

FIG. 4A is a schematic wiring diagram of a switch mechanism which is capable of being substituted into the wiring of FIG. 4 in place of the electrical reset circuit and switch mechanism contained therein;

FIG. 4B is a schematic wiring diagram similar to the diagram of FIG. 4 and showing alteration to the wiring to adapt the same for a dispenser having a remote pump and wherein the pump switch is in the neutral side;

FIG. 4C is a schematic wiring diagram of an alternate switch mechanism which is capable of being substituted into the wiring of FIG. 4B in place of the electrical reset and switch mechanism circuit embodied therein;

FIG. 5 is a schematic wiring diagram of the circuitry contained in a dispenser of the present invention wherein the pump is located within the dispenser, itself.

FIG. 5A is a schematic wiring diagram of an alternate reset circuit which is capable of substituting for the reset circuit embodied in FIG. 5; and

FIG. 5B is still another schematic wiring diagram of alternative circuit capable of substituting for the reset circuit embodied in FIG. 5.

The substitution of one of these circuits for another depends on the mechanical linkage connecting the control lever, reset motor, computer and switches.

DETAILED DESCRIPTION Referring now in detail to the embodiments chosen for the purpose of illustrating the present invention, FIG. 1 depicts a typical filling station for using several of the remote control fluid dispensers of the present invention. Such a filling station has a single central operator or attendant (not shown) who sits within a booth or stall 10, having teller windows 11 and 12 on opposite sides thereof. On a platform 3, within the booth 10, are a plurality of identical control boxes, denoted respectively by numeral 20.

Automobiles (not shown) enter the filling station of FIG. 1 successively on the window 11 side and exit on the window 12 side as indicated by arrows 14 which show their path of travel.

Each control box is connected through appropriate circuitry, to be described hereinafter, to a corresponding electrical dispenser 30. In the present embodiment, two dispensers are contained in a single pump housing 15. Each dispenser 30 has an individual hose 31 and a nozzle 32. The dispensers 30 also have a computer 33 which registers the cost and quantity of fluid dispensed from the dispenser 30, and a control lever 34. The levers 34 are shown in their off positions and each may be rotated, when the nozzle 32 is removed from the dispenser 30, to an on" position to program the dispenser 30 for delivering fluid via hose 31 and nozzle 32 to the customers automobile.

It is contemplated, of course, that the customer will remove nozzle 32, turn lever 34 to on, insert the nozzle 32 into the neck of the gasoline tank of his car, and manipulate the valve of nozzle 32 to open it for delivery of the gasoline. Automatic shut-off nozzles are used for each nozzle 32 so as to avoid or minimize spillage of gasoline.

A customer will stop at window 11, pay for the gas he anticipates he desires, or he may request a fill-up. On his way out, past window 12, he can collect any difference between what he has paid and what he has received, or may pay, according to the reading on the appropriate box 20, for the fill up.

As best seen in FIG. 2 each control box 20 has a pair of opposed trapezoidal sides 21, a rectangular top panel 22, a rectangular front end 23 and a larger rectangular rear end 24. The top panel 22 is inclined rearwardly and upwardly for ready observation, thus box 20 defines a closed chamber. The circuitry disclosed in FIG. 3 is located within the chamber of the box 20.

In FIG. 3, moving from left to right, there is a main control relay K 1, a pump switch relay K 2, a sale counter reset solenoid S l, a sale counter coil C 1, a totalizing counter coil C 2, and a preset counter coil C 3. The counters of coils C 1, C 2 and C 3 are electrically actuated by the coils and count the electrical pulses or signals they respectively receive. Furthermore, there is a slow delivery relay K 4, a preset counter relay K 5 and a main or fast delivery solenoid valve relay K 6.

The main control relay K 1 includes a coil C 4 which controls, simultaneously, a double throw single pole switch SW 1, and a single pole double throw switch SW la. The pump switch relay K 2 is provided with a coil C 5 which controls, simultaneously a pair of single pole double throw switches SW 2 and SW 3. The relay K 4 is provided with a coil C 6 which controls, simultaneously three single pole double throw switches SW 4, SW 5 and SW 6. The coil C 7 of the preset counter relay K 5 controls switches SW 7 and SW 8. Also, the main solenoid valve relay K 6 has a coil C 8 which controls switches SW 9, SW 10 and SW 11.

The connector 25 includes a plurality of terminals T 1 through T 15, inclusive. Table 1, below, indicates the function of each of the terminals in the circuitry:

TABLE I Connector Function 25 T 1 Neutral connected to pulse generator of dispenser No function v. output to pump switch l 15 v. to slow delivery solenoid valve 115 v. to main solenoid valve 115 v. from the pump switch 'Neutrlal from line to K 2 pump switch relay cor No function Neutral input from line 1 15 v. input from line 115 v. output to pump motor Earth (chassis) ground In more detail, in FIG. 3 there is a circuit from terminal T 10, via wire 40, fuse 41, emergency switch SW 15, wire 43, switch SW 12 of the automatic-manual switch 44, wire 45, and the start-reset switch SW 14, wire 46, wire 47, through diode 48 sale counter reset S 1 and wire 49 to the neutral bus 50, this bus 50 being connected to terminal T 9 through wire 51.

Capacitor C 10 is in parallel with reset solenoid S l in the circuit. Therefore, when switches SW 15 and SW 14 are closed and automatic-manual switch 44 is in the automatic position, rectified DC current is supplied to one side of the reset coil S 1 so that the sale counter 60, seen in FIG. 2, is returned to its zero position.

It will be understood that the start-reset switch SW 14 is closed only momentarily and is a normally open switch. Hence, no additional current is supplied to the sale counter reset solenoid S l. The sale counter 60,

being zeroized, is programmed to commence operation.

The momentary depressing of start-reset switch SW 14 also supplies current via wire 52 and diode 53, through wire 54 to energize coil C 4. Thence, current travels from coil C 4 through diode 55 and resistor 56 to the neutral bus 50. Thus, upon the momentary closing of switch SW 14, the coil C 4 is energized for a sufficient length of time that the holddown switch SW 1 provides a circuit from wire 45 through wire 57 and wire 58 to the coil C 4 so as to maintain the coil C 4 in an energized condition. This, in turn, maintains the main control relay K 1 in an energized condition and closes switch SW 1a. The closing of switch SW 1a completes a circuit from wire 57 to supply 115 v. a.c. to hot bus 59. Thence, current is supplied from hot bus 59 via wire 61 to provide power through terminal T 3 for the pump switch, as will be described hereinafter. Furthermore, current is supplied from hot bus 59 through a circuit including wire 62, green pilot or indicator lamp 63, resistor 64, wire 65 to the neutral bus 50 to light lamp 63 and indicate that power is supplied for the operation of the circuitry. The lamp 63 is on panel 22, as shown in FIG. 2. Also, when bus 59 is hot, power is supplied via wire 66 to switch SW 2 of relay K 2.

It will be observed that mounted on panel 22 is a prepaid post paid switch 70 (or prepaid filled up switch,'as it is sometimes termed) having switches SW 16 and SW 17. When gasoline is to be paid for before operation of the dispenser 30, switch 70 is placed in the prepaid position closing switches SW16 and SW 17. The hot wire 46, from thestart-resetswitch SW 14, thus provides current via switch SW 16, wire 71, diode 72, wire 73 to the coil C 8 ofrelay K 6 and thencethrough wire 74 to the ground bus 50. In like fashion, current from wire 71 is fed, via diode 75 through coil C 6, diode 76 and resistor 77 to neutral bus 50. Thus, when switch SW 16 is closed, and switch SW 14 is closed, the coils C 6 and C 8 of relays K4 and K 6 are energized, thereby pulling down switches SW 4, SW 5 and SW 6 of relay K 4 and pulling down switches SW 9, SW and SW 11 of relay K 6;

Switch SW 6 functions as a holddown switch and, once coil C 6 is energized, a holddown circuit from hot wire 59, via wire 78, through switch SW 6 and wire 79 to coil C 6 and thence through diode 76 and resistor 77 to neutral bus 50 is made. This maintains the coil C 6 energized, even though switch SW 14 is only closed, momentarily.

In like manner, the closing of switch SW 11, which is in series with switch SW 8, creates a circuit from the hot bus 59, via wire 80, switch SW 11, wire 81, switch SW 8, wire 82, wire 73, coil C 8 through wire 74 to the neutral bus 50. Thus coil C 8 of relay K 6 is maintained in the energized condition until the normally closed switch SW 8 is opened due to energization of coil C 7 of relay K 5.

It will be observed that, from the bus 59 through diode 83 and resistor 84, a circuit is provided via wire 85, normally closed switch SW 7, normally closed switch SW 9, wire 87, capacitor 88 and wire 89, to neutral 50. Hence, when relay K 6 .is dropped out, and relay K 5 is not energized, rectified current charges capacitor 88 with current emanating via diode 83 and resistor 84. Also, this d.c. current is supplied via wire 90 to one terminal of switch SW 3" so that when coil C 5 6 of relayK 2 is energized, capacitor 91 is charged, one plate thereof being connected via wire 92 to the neutral bus 50. The other terminal of switch SW 3 is connected via wire 93 to a position between diode 55 and resistor 56. Hence, the capacitor 91 can be discharged via switch SW 3 and wire 93 so as to provide an essentially zero potential across coil C 4 for a sufficient length of time that the holddown switch SW 1 will be released so that the relay K. 1 may drop out.

The throwing of switch SW 7, in like fashion will cause the drop out of relay K 4, due to the fact that there is a circuit created from capacitor 88, via wire 87, switch SW 9, wire 86 and wire 94 to a point between diode 76 and resistor 77 by which a zero potential is momentarily created on coil C 6 as capacitor 88 is dis-' charged. The other terminal of switch SW 9 is connected, through wire 160 and resistor 42 to neutral bus 50. Therefore, each time coil C 8 is energized, capacitor 88 is discharged through resistor 42.

Even though the coils C 4, C 6 and C 8 are energized, upon the momentary closing of the start-reset switch SW 14, none of the active components of the system are energized, as yet. Power, however, has been supplied via wire 61, to energize the reset assembly 221 of the gasoline pump or dispenser 30, as will be described hereinafter. Thus, terminal T 3 has been rendered hot. The terminals T 6 and T 7 are to be connected to the pump switch .and neutral circuits so that when the pump switch lever 34 is rotated, a circuit is made, via

wires

96 and 97 to energize coil C 5 of relay K 2 and thereby pull down switches SW 2 and SW 3. As mentioned above, the pulling down of switch SW 3 causes a charging of capacitor 91. The closing of switch SW 2, since it has been supplied with current from the hot bus 59, provides power to bus 98, whence current is supplied via wire 99, switch SW 4 and wire 100 to the preset counter coil C 3' of preset counter 140 and thence through wire 101 and wire 102 to terminal T 1 which leads to the neutral bus through the pulse generator 218, to be hereinafter described. The preset counter coil C 3, therefore is ready to receive pulses and begin counting. The counter 140 has a cam (161) which, has raised portions to depress momentarily the switch SW 20 when the counter 140 reaches a 5 cent, or some other designated relatively low figure, in its countdown. The cam (161) also depresses the switch SW 20 for a second time when the counter reaches a zero cent figure. Switch SW 20 is connected in series with a resistor 103, a diode 104 and a capacitor 105, the

wires

106, 107, 108 providing the connection across the line from hot bus 59 to neutral bus 50. This permits the charging of capacitor 105 so that, when switch SW 20 is actuated by the cam, this capacitor 105 can discharge, via

wires

107, 108 and the depressed switch SW 20, through wire 109, to apply a surge across coil C 7 and hence through wire 110 to ground so as momentarily pull down switches SW 7 and SW 8.

The applying of potential to wire 98 by switch SW 2 also supplies v. potential, via wire 111 and wire 112 so that the coils C 1 and C 2as well as the resistor 113 and amber lamp 114 which are connected to the neutral bus through the pulse generator through terminal T 1 and wire 102 are conditioned so that a circuit may be made through terminal T 1 to a neutral connection. Thus it is seen that all three coils C 1, C 2 and C 3 are conditionedfor actuation when the terminal T 1 is applied to neutral, as will be explained hereinafter.

The method by which relays K 4 and K 6 control the flow of fluid through the dispenser 30 is as follows: When relay K 6 is energized, the arm of switch SW 10 is down in FIG. 3. Power is supplied to terminal T 5, which is connected to the main solenoid valve V 2 or V 4 in the dispenser 30, through wire 126, and switch SW 10 to wire 98. When relay K 4 is energized, the arm of switch SW 5 is down in FIG. 3. Power is supplied to terminal T4, which is connected to the slow delivery solenoid valve V 1 or V 3 in the dispenser 30, through wire 121 and switch SW 5 to wire 98. At the same time this circuit applies power to coil C 9 of relay K 3 causing it to energize. Power is thus supplied to terminals T 11 and T 14, which are connected to the pump motor M 1 in the dispenser or motor control 200 in remote pump installations through

wires

130 and 131 and normally opened switch SW 21.

When relays K 4 and K 6 drop out, power is removed from the solenoid valves and pump motor.

When switch 70 is thrown to the fill-up position, switch SW 16 is open so that operation of start switch SW 14 will not supply current to coils C 6 and C 8 through

wires

46, 71, switch SW 16 and

diodes

72 and 75.

At the same time switch SW 17 supplies current from wire 98, via wire 116 and switch SW 17 to wire 117 and thence through switch SW 5 via wire 118 to energize coil C 9 of relay K 3 and thence via wire 120 to the neutral wire 51. This line current of 115 v. is also supplied from wire 118 via wire 121 to terminal T 4 which is connected to the terminals P 4 of the slow delivery solenoid valve V 1.

When switch 44 is thrown to manual, the switch SW 22 connects the hot line 98 via wire 122 and wire 123 to the wire 124 and thence through switch SW 5 as described previously so that coil C 9 will be energized. Furthermore, current is also supplied either from wire 117 or from wire 123, depending upon the conditions of

switch

70 and 44 via wire 125 to the switch SW of relay K 6 and then via wire 126 at 115 v. potential to terminal T 5 which, in turn, supplies current to the main solenoid valve V 2 or V 4, as will be described hereinafter.

Returning now to the main control switch SW 1a, it will be observed that, when this switch SW 1a has not been thrown to its energizing position (as when relay K 1 is energized) switch SW 1a provides a circuit from the hot wire and wire 57 via wire 132 to off lamp 133 and thence via wire 134 and resistor 64, as well as wire 65 to the neutral bus 50. Thus, when associated dispenser 30 of the control box 20 is available, lamp 133 is lighted. After the start-reset switch SW 14 has been thrown, however, the switch SW la will be in a depressed condition and hence lamp 63 is lighted via

wires

59, 62, 65 and resistor 64 to indicate that the circuitry has been programmed for delivery of the fluid through use of the dispenser 30.

The circuitry thus far described is located within the housing 20 with the switches 44, the start reset switch SW 14 and the post-paid pre-paid selector switch70 vbeing mounted as shown in FIG. 2 on panel 22 in such positions that these switches may be thrown, as desired. Furthermore, the on lamp 63, the off" lamp 133, and the dispensing lamp 114 are mounted above the three

switches

44, 70 and SW 14 on panel 22, as indicated in FIG. 2. The dial for the preset counter 140 as well as the knurled discs 41 (which sets the dial) are mounted at the upper central part of the panel 22. The dial of the sales counter 60 is mounted below the counter 140 but above the three transversely disposed

lamps

114, 63 and 133. Below the three switches 44, and SW 14, is the dial of the totalizing counter 143.

The counter is associated with the preset counter coil C 3. The counter 60 is associated with the sales counter coil C 1 while the counter 143 is associated with the totalizing counter coil C 2 so that then an elec trical pulse passes through the respective coils, C 1, C 2 or C 3, the

counter

140, 142 or 143 will register the occurrence of this pulse.

A summary of the functions of the various relays is contained in Table II, below:

TABLE II Relays Name Function K 1 Control Relay Determines whether system of FIG. 3 is off or on". Controls power to K 2.

K 2 Pump Switch Relay Controlled by operating handle 34 on dispenser. Resets K 1 when K 2 is turned off. Applies power to solenoid valves and pump motor through K 4 and K 6.

K 3 Power Relay For operating pump motor M l.

K 4 Slow delivery or low flow solenoid valve relay Controls power to slow delivery solenoid control valve V 1 and K 3 relay coil.

K 5 Preset counter Relay Transmits signal from preset counter 140 when counter is at 5 cents and at 0 cents. K 6 Main solenoid valve solenoid valve V 2.

In FIG. 3A is an alternate form of control circuitry which can be substituted for the circuitry of FIG. 3. In such case, there is no necessity for the solenoid valves V 1, V 2, V 3 or V 4 and the circuitry therefor. Hence, these valves are electrically held open or may be removed from the circuitry, if desired.

The purpose of the circuitry of FIG. 3A is to provide a remote control for the electric power to a dispenser 30 and provide a remote reading for the dispenser 30. There is, however, no presetting of any prescribed amount of gasoline to be dispensed.

In FIG. 3A, moving from left to right, there is a main control relay K 1a, a pump switch relay K 2a, a sale counter coil C 1a, a totalizing counter coil C 2a and a power relay K 3a. The counters (similar to

counters

60 and 143 in FIG. 2) are associated with coils C 1a and C 2a are electrically actuated by the coils to count the electrical pulses or signals which they respectively receive. It will be remembered that sale counter 60 counts up from zero each cycle, and counter 143 keeps a running total of such sales.

The main control relay K 1a includes a coil C 4a which controls, simultaneously, a double throw single pole switch SW 1b, and a single pole double throw switch SW 1c. The pump switch relay K 2a is provided with a coil C 5a which controls, simultaneously a pair of single sole double throw switches SW 2a and SW 3a.

The connector 25a includes a plurality of terminals T 1a through T 15a, inclusive. Table III below, indicates the function of each of the terminals in the circuitry:

TABLE III Connector 25a Function T 1:: Neutral connected to pulse generator of dispenser T 2a No function T 30 I I v. output to the pump switch T 4a 1 l5 v. to slow delivery solenoid valve v1 or V 3 (in the event that such valve is in the system) T 5a 115 v. to main solenoid valve V 2 or V 4 (in the event such valve is in the system) T 60 1 v. from the pump switch T 70 Neutral from line to K 2a pump switch relay coil C 5a.

T 8a No function T 12a Neutral input from line T We &

T 130 VI l5 v. input from line T Ila &

T 14a 1 15 v. output to pump motor T 15a Earth (chassis) ground In more detail, in FIG. 3A there is a circuit from terminal T 10a, via wire a, fuse 41a, emergency switch SW 15a, wire 43a, switch SW 12a of the automaticmanual switch 44a, wire 45a, and the start-reset switch SW 14a, wire 46a, through diode 48a sale counter reset solenoid S 1a and wire 49a to the neutral bus 50a, this bus 50a being connected to terminal T 9a.

Capacitor C 10a is in parallel with reset solenoid S 1a in the circuit. Therefore, when switch 12a of automatic-manual switch 44a is in the automatic position, as shown in FIG. 3A, rectified DC current is supplied to one side of the reset coil S la so that the sale counter (not shown corresponding to co-unter 60) is returned to its zero position.

It will be understood that the start-reset switch SW 14a is closed only momentarily and is a normally open switch. Hence, no additional current is supplied to the sale counter reset solenoid S la. The sale counter (corresponding to counter 60) being zeroized, is programmed to commence operation.

The momentary depressing of start-reset switch SW 14:: also supplies current via wire 52a'and diode 53a, through wire 54a, to energize coil C- 4a. Thence, current travels from coil C 4a through diode 55a and resistor 56a to the neutral bus 50a. Thus upon the momentary closing of switch SW 14a, the coil C 4a is energized for a sufficient length of time that the holddown switch SW 1b provides a circuit from wire 45a through wire 57a and wire 58a to the coil C 4a so as to maintain the coil C 4a in an energized condition. This, in turn, maintains the main control relay K 1a in an energized condition and closes switch SW 1c. The closing .of switch SW 1c completes a circuit from wire 57a to supply 115 v. a.c. to hot bus 59a. Thence, current is supplied from hot bus 59a via wire 61a to provide power through terminal T 3a for the

pump switch

221, 231, 321a or 321b as will be described hereinafter. Furthermore, current is supplied from hot bus 59a through a circuit including wire 62a, green pilot or indicator lamp 63a, resistor 64a, wire 65a to the neutral bus 50a to light lamp 63a and indicate that power is supplied for the operation of the circuitry. The lamp 63a corresponds to lamp 63 on panel 22, as shown in FIG. 2. Also, when bus 59a is hot, power is supplied via wire 66a to switch SW 2a of relay K 2a.

The terminals T 6a and T 7a are to be connected to the pump switch and neutral circuits so that when the pump switch lever 34 is rotated, a circuit is made, via wires 96a and 97a to energize coil C 50 of relay K 2a and thereby pull down switches SW 2a and SW 3a. The pulling down of switch SW 3 causes a charging of capacitor 91a, current being supplied from hot wire 59a via diode 83a, resistor 84a, wire a, switch SW 3a to one plate of capacitor 91a while the other plate is connected to neutral via wire 92a. The closing of switch SW 2a, since it has been supplied with current from the hot bus 59a, provides power to wire 98a and via wire 111a and wire 112a to the parallel coils C la and C 20 as well as the series arranged resistor 113a and amber lamp 114 a. The other sides of coils C la, C 2a and the lamp 1140 are connected to terminal T-la via wire 102a and are conditioned by the pulse generator so that a circuit may be made through terminal T 1a to'a neutral connection. Thus it is seen that coils C la and C 2a are conditioned for actuation when the terminal T In is applied to neutral, as will be explained hereinafter.

When switch SW 2a is pulled down, current is also supplied via

wire

98a, 118a through coil C 9a and wire 120a to neutral bus 50a. Thus, the closing of switch SW 2a causes the energizing of the power relay K 3a and the closing of switch 21a. Switch SW 21a shunts terminals T 10a, T 13a and terminals T 11a, T 14a, thereby supplying current from the hot side via wire a to terminals T 1 1a, T 14a for feeding current to the motor control 200 for energizing motor M 1.

When switch SW 2a is closed, a current is also supplied from wire 118a, via wire 121a to terminals T 4a and T 5a. This supplies current from the solenoid valves V 1 or V 3 and V 2 or V 4 to be described hereinafter should said valves be installed.

Returning now to the main control switch SW 1c, it will be observed that, when this switch SW 10 has not been thrown to its energizing position (as when relay K 1a is not energized) switch SW 1c provides a circuit from the hot wire 45a and wire 57a via wire 132a to of or ready lamp 133a and thence via wire 134a and resistor 64a, as well as wire 65a to the neutral bus 50a. Thus when the associated dispenser 30 of the control box 20 is available, lamp 133a is lighted. After the start-reset switch SW 144 has'been thrown, however, the switch SW 1a will be in a depressed condition and hence the circuit to lamp 133a is broken and, instead, lamp 63a is lighted via

wires

59a, 62a, and 65a and resistor 64a to indicate that the circuitry has been programmed for delivery of the fluid through use of the dispenser 30.

The circuitry thus far described is located within the housing 20 with the switches 44a and the start reset switch SW 14a being mounted on panel 22 in such positions that these switches may be thrown, as desired. Furthermore, the on lamp 63a, the off lamp 133a and the dispensing lamp 114a are mounted above the switches 44a and SW 14a on panel 22.- The dial of the sales counter similar to counter 60 is mounted above the three transversely disposed

lamps

114a, 63a and 133a. Below the switches 44a and SW 14a is the dial of the totalizing counter such as counter 143.

When lever 34 is thrown to an off position, this will break the circuit to wires 96a, 97a to de-energize coil C 5a thereby permitting the switches SW 2a and SW 3a to return to the position illustrated in FIG. 3A. The opening of switch SW 2a breaks the circuit to coil C 9a and opens switch SW 2la,-thereby interrupting current to the main motor M 1 or M 3. This causes the pump or dispenser 30 to stop pumping.

The returning of switch SW 311 to its up position makes a circuit which discharges capacitor 91a sufficiently to create momentarily a zero potential across coil C 4a thereby opening its holddown switch SW lb to de-energize coil C 4a and return switch SW to its up position. Thus, the machine is programmed for another cycle. The counter of coil C 1a and C 20 retain what they have respectively counted so that the amount on the coil C 1a sales counter, corresponding to counter 60, may be quoted to the customer. This amount will be reset to zero when a subsequent cycle begins.

When switch 44a, i.e. switch SW 1211 is thrown to the right in FIG. 3A, relay K 1 is by-passed to provide current direct to hot bus 59a without resetting the sales counter of coil C 10. The mechanism may then be operated without resetting in a manual mode.

DISPENSER CIRCUITRY In FIG. 4 a typical remote control pump or dispenser circuitry is disclosed. This circuitry includes terminals P 1 through P 15, inclusive which are connected respectively to terminals T1 through T inclusive of FIG. 3. The circuitry also includes a source E of 115 v. A.C. power and a source E of 230 v. A.C. power. The 230 volts supplied from source E is supplied via switch SW 30, through the motor control 200. This motor control 200, in turn, is connected, via

wires

201 and 202 to the main motor or pump motor M 1. The actuation and deactuation of motor M l is controlled through control 200 and is responsive to the making and breaking of a

circuit including wires

203 and 204. Wire 203 leads to a neutral bus 210 which leads from terminal P 9. Wire 204 is connected to terminal P 14. Terminal P 11 is connected to wire 204 through wire 227.

The circuitry illustrated in FIG. 4 is contained in the dispenser 30 except that the motor M 1 is located on a supplier pipe or conduit not shown) leading from a storage tank (not shown) which will supply a plurality of similar pumps, such as dispenser 30. Hence, the motor M 1, which pumps the fluid to the dispenser 30, and thence through hose 31 and nozzle 32 is shared by several such dispensers 30.

The main power supply is from source E which supplies the 115 volts via

wires

206 and 207 to terminals P 9 and P 13. It will be remembered that since terminal P 9 is connected to terminal T 9, the wire 207 supplies a neutral connection while the wire 206 supplies the 1 l5 volts hot side. Also, hot line voltage is supplied from wire 206 and wire208 to terminal P 10. A neutral connection for terminal P 7 is provided via wire 209 which is connected to neutral bus 210. Thus,

wires

203, 207 and 209 as well as terminals P 7 and P 9 are connected electrically to a neutral bus 210. The various connections to the terminals P 1 through P 15, inclusive, of the connector 205 are provided through a first junction box denoted by numeral 211. Terminals T 15 and P 15 are provided with a chassis ground G through wires, such as

wires

212 and 213. Ground G also grounds first and

second junction boxes

211 and 214.

Terminal P 1 is connected, via wire 215 through a pulse or signal generator switch SW 32 and wire 216 to neutral, via wire 217 and wire 210. Therefore, each time switch SW 32 is closed, terminal P 1 is connected to the neutral bus 210. The pulse generator switch SW 32 is located within the pulse or signal generator 218 and is operated to open and close by a rotating cam 219 driven from the fuel flow meter (not shown). Hence, the pulsing of switch SW 32 is directly proportional to the feeding of fluid from the dispenser 30. Furthermore, it is directly proportional to the price and quan tity dials of the computer 33 of dispenser 30.

Terminal P 3 is connected through wires 220, 220a to the throw arm of a single pole double throw switch SW 33 in the power reset component 221 of the dispenser 30. One pole of switch SW 33 is connected, via wires 222, 222a, to terminal P 6 while the other pole of switch SW 33 is connected, via wire 223, to the reset motor M 2 which, in turn, is connected through normally open switch SW 34 and wire 224 to neutral 210 through wire 217.Switch SW 34 is operated by lever 34 through cam 233 so that the computer 33 is reset by the reset motor M 2 when lever 34 is turned on". When the computer has reset, cam 233 opens switch 34 and thereby turns off reset motor M 2. At the same time, cam 234 operates switch SW 33 and a circuit is made from terminal T 3 to terminal T 6 to energize coil C 5 and relay K 2.

The terminals P 4 and P 5 are connected to the flow control solenoid valves V 1 and V 2, terminal P 4 being connected via wire 225 to the slow down or slow delivery solenoid of the solenoid valve V 1. In like fashion, the terminal P 5 is connected via wire 226 to the solenoid of the main solenoid valve V 2. The other sides of both solenoids of valves V 1. and V 2 are connected to the neutral bus 210, so as to complete a circuit. Valves V 1 and V 2 are disposed in parallel in the fluid dispensing line between the pump M 1 and nozzle 32.

Referring to FIG. 4A, if desired, a manual reset arrangement, such as illustrated therein, may be substituted for the power reset component 221. This manual reset component is denoted by numeral 231, and includes a normally open switch SW 35, one terminal which is connected to wire 232. Hence, when the switch SW 35 is closed, a circuit is made from terminal P 3 to terminal P 6 to energize coil C 5 and relay K 2.

The circuitry described above for FIG. 4 is for a dispenser of the type wherein the pump switch SW 33 which resets the computer 33 is on the hot side i.e., the switch SW 33 is connected by wire 220a and wire 220 to terminal P 3.

If, however, the pump switch SW 33 is on the neutral side, as some commercial models have it, the circuitry requires only the minor changes illustrated in FIG. 4B. In more detail, the circuitry of FIG. 4 is altered by con necting terminal P 6 through wires 222b and 222C to wire 220 and disconnecting it from the neutral bus 210. In FIG. 4B the new connectionsare shown in heavy lines and the broken or removed connections in broken lines.

Furthermore, the connection of the reset components is reversed by connecting the arm of switch SW 34, via wire 224b to wire 220 (instead of to wire 2l6b) and by connecting the arm of switch SW 33, via wire 220a to neutral wire 210a (instead of via wire 220a to wire 220).

In FIG. 4C it is seen that if a manual reset switch is used and this manual reset switch SW 34c is on the neutral side, in place of the switch SW 33 of FIG. 4B, the wires should be altered, as shown in FIG. 4B with component 221 removed. Then wire 230b of FIG. 4C should be connected to wire 210a and wire 232b to wire 222. In such case, thewire 230a which would lead to wire 220 is removed.

In FIG. 5 is a circuitry for another form of commercial dispenser having an internal pump and containing an electric reset of a type made by Veede'r-Root. In more detail, the circuitry includes terminals R 1 through R 15 inclusive which are in connector 305 for connection to terminals T 1 through T 15 respectively of its control box 20.

In the FIG. 5 arrangement, 230 v. single phase A.C. current is supplied from the source of current E via three wires 300, 306 and 307. The wires 306, 307 sup ply 1 15 v. current with the wire 307 leading to neutral bus 310. The hot side i.e., wire 306 is connected to terminals R 13 and via wire 308 to terminal R10 in connector'305. The neutral bus 310 is connected via 309 to terminal R 7.

The terminal R is connected by

wires

312 and 313 to ground G at

junction boxes

311 and 314. From terminal R 14

wires

301 and 304 lead to one side of the main motor or pump motor M 3, the other side of which is connected through wire 302 and wire 303 to one terminal of switch SW 47 of the pump switch 350 of the reset component 321. The throw arm of switch SW 47 is connected, via wire 310a, to neutral bus 310. Also, terminal R 11 is connected by wire 327 to wire 304. Switch 350 is connected to a lever, such as lever 34. Therefore, when the lever is turned to itson position, cam 333 connected to lever 34 closes switch SW 44 to energize the reset motor M 4 which is connected to the neutral bus 310 through

wires

324 and 317 and to terminal R 3 through

wires

329, 320a, and 320 and switch SW 46. The motor M 4 is thus supplied with 115 v. power when terminal R 3 is hot by virtue of the control box being in the.on condition as determined by the operator.

Whenthe reset motor M 4 has completed the resetting of the computer 33, cams 333a and 333b, driven from motor M 4, cause the arms of SW 45, SW 46 and SW 47 to be thrown to the right in FIG. 5. At this time a circuit is made from terminal R 3 through

wires

320, 320a, 322a, 322 and switch SW 45 to terminal R 6. This causes the pump relay K 2 in control box 20 to operate and supply power through other relays as previ ously described to terminals R 4, R 5, R 11 and R 14. Switch SW 46 is opened to open the reset motor circuit just described.

The terminals R 4 and R 5 are connected, respectively through the solenoids of slow delivery solenoid control valve V 3 and main solenoid control valve V 4, to neutral bus 310.

When delivery of the product is complete, the customer turns the operating lever 34 to the of position. This opens switch SW 44 so that the reset motor M 4 cannot be operated.

Pulses, in the circuit of FIG. 5, are provided by switch SW 42 in the pulse generator 318 upon rotation of cam 319 in synchronization with the computer 33. One side of switch SW 42 is connected via

wires

316 and 317 to neutral bus 310. The other side of switch SW 42 is connected via wire 315a and 315 to terminal R 1.

Terminals R '2, R 8 and R 12 of connector305 are open and have no function.

FIG. 5A shows a modification to the circuitry of FIG. 5, illustrating a Tokeim electric reset. In this arrangement the reset motor component 321b is substituted for the reset motor component 321. Therefore, wires 324b, 320b, 322b, 3031; and 310b are substituted for

wires

324, 320a, 322a, 303 and 310a.of FIG. 5.

The reset motor M 417 is therefore in series from wire 3241; through switch SW 44b, wire 329b to-the of terminal of the single pole double throw switch SW 46b, the throw arm of which is connected to wire 32%. The on terminal of switch SW 46b is connected to wire 322b. Switches SW 47b and SW 46b are components of switch 350b, which in turn is controlled by cams 333d connected to motor M 4b. When the lever is turned on, cam 333C closes switch SW 44b and a circuit is then made from terminal R 3, via wires 320,

320b,

SW 46b wire

329b, 324b, 324, 317 to neutral bus 310. This energizes motor M 4b to reset the computer.

When reset is complete, cam 333d driven by reset motor M 4b causes the arms of switches SW 46b and SW 47b to move to the right in FIG. 5A.

The circuit of motor M 4b is broken when switch SW 46b moves to the right in FIG. 5A. This, however, makes a circuit from wire 320b to wire 3221; so that terminals R 3 and R 6 are shunted to energize coil C 5.

Furthermore, a circuit is made from the hot terminal R 14 through wire 304, notor M 3, wires 302, 303b, switch SW 47b, wire 310b to neutral bus 310. This programs motor M 3 for remote starting at the box 30 by closing of switch SW 21 of relay K 3.

In FIG. 5b is a modification of the circuitry of FIG.-

5, illustrating a Gilbarco" electric reset. In this arrangement, component 3210 is substituted for component 321 and

wires

324e, 3200, 322C, 3036 and 310 are substituted for

wires

324, 320a, 322a, 303 and 310a. Switch SW 470 functions for making a circuit for wires 303C and 310 c in the same manner as switch SW 47b for wires 303b and 3l0b. Switch SW 440, when closed, makes a circuit from terminal R 3 through reset motor M 4c to neutral via wire 324c and switch SW 46c when closed, programs the main motor M 3 for remote control through terminal R 14. Cam 3330 is controlled by the lever'such as lever 34 and cam 333fby motor M 40.

OPERATIONS From the foregoing description, the operation should be apparent.

If manual operations are desired, the auto-man switch 44 is switched to man, and the emergency switch SW 15 is on. The dispenser 30 may now be used as if the remote control were not installed. The green pilot or on lamp 63 will be illuminated. The sale counter 60 and totalizer counter 143 will operate, but the sale counter 60 will not reset after each sale. The in-use' amber pilot or dispensing lamp 114 will flash on and off with each pulse to provide a visual indication when the product is being dispensed.

If it is desired to reset the sale counter 60, the automan switch 44 is shifted to auto, and the start button or start-reset switch SW 14 is closed to clear or reset to zero the counter 60. The emergency switch SW 15 is then shifted to off and then back to on to reset the control box 20 and then switch 44 is switched back to man again.

When fill-up or pre-paid operations are desired, it is necessary to switch the auto-man switch 44 to auto, the preset fill-up switch to fill up, and the emergency switch SW 15 to on. The unit is now in the standby (off) condition with the red of pilot lamp 133 illuminated.

When a customer is ready to dispense a product and a safe condition exists the start button is pressed on switch SW 14. This applies power to the pump switch SW 33, SW 35, SW 340, 350 350b, or 350a as the case may be and the green pilot light 63 will illuminate while the red off" pilot light 1133 will go out. When the customer turns on the pump switch by throwing lever 34 and egins to dispense the product, the in-use amber or dispensing pilot light 114 will flash and the sale counter 60 and totals counters 143 will count proportionally to the amount of fluid dispensed. When the customer turns off the pump switch i.e. lever 34, the machine will reset, causing the green pilot lamp 63 to go out and the red lamp 133 to come back on. This removes power from the pump motor M l or M and no further dispensing is possible until the start button i.e. switch SW 14 is again depressed.

If it is necessary to interrupt the dispensing of the product due to an emergency situation, the emergency switch SW 115 is shifted off. This removes power from the dispenser 30 and resets the box 20.

When preset operations are desired, the operator switches the auto-man switch 44 to auto, the prepaid postpaid switch 70 to prepaid, and the emergency switch SW 15 to on. The unit is now in the standby (off) condition with the red pilot lamp 133 illuminated.

When a customer places an order and pays for it,

through window 11, the operator dials in the amount of i the sale on the preset counter 140 by manipulation of discs 14. When the customer is ready to dispense the product and a safe condition exists the operator presses the start button i.e. the start reset switch SW 14. This applies power to the pump switch SW 33, SW 340,

SW

35, 350 35% or 3500, as the case may be, and the green pilot lamp 63 will illuminate, while the red pilot lamp 133 will go out. When the customer turns on the lever 34 to switch the pump switch SW 33, SW 340,

SW

35, 350, 35Gb or 3506 and begins to dispense the product, the in use amber pilot lamp 114 will flash, the preset counter 140 will count down, and the sale and totals counters 60 and 143 will count up.

When the preset counter 140 counts down to cents a relay click will be heard and the delivery will start to slow down since valve V 2 or V 4 is closed. When this counter 1'40 reaches 0 cents another click will be heard since valve V l or V 3 is closed and the delivery will stop. At 0 cents, power is removed from the pump motor M l or M 3 and no further dispensing is possible until the start button SW 14 is again depressed. When the customer turns off lever 34 of the pump, the box 20 will reset, causing the green pilot lamp 63 to go out and the red lamp 133 to come back on. Once the start button SW 14 is depressed, no change should be made to the preset counter 140. If it is desired to change counter 140 due to an error before the customers turn on lever 34 of the pump the operator switches the emergency switch SW 14 to off to reset the unit, then back to on again. The preset counter 140 may then be changed before the start button SW 14 is depressed again. I

Remote Control Equipment of the present invention, is designed to provide remote control of new or rebuilt fuel dispensers in self-service operations. It can be made in two versions, the complete Preset/Fillup version, illustrated herein or a simplified Fill Up only version by eliminating the preset counter 140. The totalizing counter 143 may be eliminated if desired.

The circuit of the present invention is designed to be as versatile as possible so that it may be used with any make and model of dispenser using either semiautomatic or electric reset, self-contained or remote pump and 115 or 230 v. pump motor.

Remote control box 20 is designed for side-by-side mounting with other boxes 20 on a shelf, table or desk 13. Its sloping front panel 22 aids the operator in monitoring the self-service operation through window W while still keeping an eye on the counters and pilot lamps. All controls are within each reach no rear panel switches or switches on nearby junction boxes are required. A quick-disconnect on the cable to connector 25 can be easily removed should the box 20 re quire factory servicing.

What is claimed is:

1. A remote control fluid dispenser comprising:

a fluid dispenser from which measured quantity or value of fluid is delivered;

pulse generating means responsive to the feeding of fluid from said dispenser for producing successive electrical pulses proportional in number to the quantity or value of fluid being dispensed from said dispenser;

valve means at said fluid dispenser for selectively permitting relatively fast delivery of fluid from said dispenser and relatively slow delivery of fluid from said dispenser and for preventing delivery of fluid from said dispenser;

electrical means for controlling said valve means,

said electrical means including a preset counter on which selected preset values of measure can be set, said counter being connected to and actuated by said pulse generating means to count down from said preset value of measure to zero; and

an electrical circuit from said preset counter to saidvalve means to program said valve means to permit said fast delivery of fluid during the initial period of said count down of said counter, and then permit said slow delivery of fluid during a second and subsequent period of said count down, and thereafter prevent delivery of fluid as said preset counter reaches zero; said electrical means including a fast delivery relay and a slow delivery relay each including a hold switch, start switch means for momentarily energizing both said fast and said slow delivery relays, a preset counter relay, switch means controlled by said preset counter for momentarily energizing said preset counter relay a first time when said initial period ends and a second time when said preset counter reaches zero, said preset counter relay including a switch in series with the holding switch of said fast delivery relay to break the holding circuit of said fast delivery relay when said preset counter relay is energized said first time, a capacitor charged in response to deenergization of said fast delivery relay by said preset counter relay, and said preset counter relay including switch means for discharging said capacitor to deenergize said slow delivery relay when said preset counter relay is momentarily energized said second time; said valve means comprising a slow delivery valve controlled by said slow delivery relay and a fast delivery valve controlled by said fast delivery relay, said valves being disposed in parallel fluid flow relation for joint operation during said initial period. 2. A remote control fluid dispenser according to claim 1 wherein said switch means controlled by said preset counter includes a cam-operated switch and a relay-energized capacitor, said cam operated switch having a first position charging said relay-energizing capacitor and a second position discharging momentarily to energize said preset counter relay.

3. A remote control fluid dispenser according to claim 1 including power means for operating said fluid dispenser in response only to operation of said slow delivery valve.

4. A remote control fluid dispenser according to claim 1 including selector switch means for selectively preventing energization of said fast and said slow delivery relays, said slow delivery relay including a normally closed switch connected to the slow delivery valve through said selective switch means to allow operation of said slow delivery valve when said slow delivery relay is prevented from energization, and said fast delivery relay including a normally closed switch connected to said fast delivery valve through said selector switch means to allow operation of said fast delivery valve when said fast delivery relay is prevented from energization.

5. A remote control fluid dispenser according to claim 4 including signal means connected to said pulse generator means through said selector switch means when said fast and slow delivery relays are prevented from energization.

6. A remote control fluid dispenser according to claim 4 including power means for operating the fluid dispenser, said power means being operated in response only to operation of said slow delivery valve whereby the power means operates independently of said selector switch means.

Claims

1. A remote control fluid dispenser comprising: a fluid dispenser from which measured quantity or value of fluid is delivered; pulse generating means responsive to the feeding of fluid from said dispenser for producing successive electrical pulses proportional in number to the quantity or value of fluid being dispensed from said dispenser; valve means at said fluid dispenser for selectively permitting relatively fast delivery of fluid from said dispenser and relatively slow delivery of fluid from said dispenser and for preventing delivery of fluid from said dispenser; electrical means for controlling said valve means, said electrical means including a preset counter on which selected preset values of measure can be set, said counter being connected to and actuated by said pulse generating means to count down from said preset value of measure to zero; and an electrical circuit from said preset counter to said valve means to program said valve means to permit said fast delivery of fluid during the initial period of said count down of said counter, and then permit said slow delivery of fluid during a second and subsequent period of said count down, and thereafter prevent delivery of fluid as said preset counter reaches zero; said electrical means including a fast delivery relay and a slow delivery relay each including a hold switch, start switch means for momentarily energizing both said fast and said slow delivery relays, a preset counter relay, switch means controlled by said preset counter for momentarily energizing said preset counter relay a first time when said initial period ends and a second time when said preset counter reaches zero, said preset counter relay including a switch in series with the holding switch of said fast delivery relay to break the holding circuit of said fast delivery relay when said preset counter relay is energized said first time, a capacitor charged in response to deenergization of said fast delivery relay by said preset counter relay, and said preset counter relay including switch means for discharging said capacitor to deenergize said slow delivery relay when said preset counter relay is momentarily energized said second time; said valve means comprising a slow delivery valve controlled by said slow delivery relay and a fast delivery valve controlled by said fast delivery relay, said valves being disposed in parallel fluid flow relation for joint operation during said initial period.

2. A remote control fluid dispenser according to claim 1 wherein said switch means controlled by said preset counter includes a cam-operated switch and a relay-energized capacitor, said cam operated switch having a first position charging said relay-energizing capacitor and a second position discharging momentarily to energize said preset counter relay.