US2784874A - Price-controlled fuel pump - Google Patents
Price-controlled fuel pump Download PDFInfo
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- US2784874A US2784874A US437815A US43781554A US2784874A US 2784874 A US2784874 A US 2784874A US 437815 A US437815 A US 437815A US 43781554 A US43781554 A US 43781554A US 2784874 A US2784874 A US 2784874A
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- wheel
- solenoid
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- pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
Definitions
- This invention relates to a price-controlled fuel pump and has for its primary object the provision of a simple, compact and inexpensive control system for a fuel pump which can be preset to automatically deliver a given amount of fuel in terms of the total price of the fuel to be delivered.
- a major object of the invention is to provide a device which can be preset by the pump operator to the desired price, and when the amount of fuel corresponding to that price has been delivered, the pump will automatically shut off.
- Another object is to produce such a device which can be readily set by means of electric pushbuttons to the desired amount.
- Another object is to provide such a device as an attachment to a standard pump with a minimum of alteration or connection to the existing pump.
- Fig. 1 is a schematic and circuit drawing of the metercontrolled switching system of my invention
- Fig. 2 is a side elevation of a counter-actuating solenoid for operating the number of dials and associated mechanism of my invention.
- Fig. 3 is a front elevation of a typical gasoline pump showing the manner in which my invention is attached thereto.
- a typical gas pump 2 is provided with the usual meter face 5 for registering the unit price of gasoline, the number of gallons delivered and the total price of the gas delivered.
- Such pumps are electrically driven and are usually controlled by a hand-operated lever near the nozzle.
- Some pumps in common use are equipped with automatic nozzles which shut off the pump flow when the tank is filled, by means of an electric solenoid operating on the shutoil mechanism of the pump.
- electrical control of the cutoff operation may be ac-- complished either by a relay which cuts off the entire electrical supply to the pump or by a solenoid of known type mounted on the end of the hose adjacent to the nozzle to produce the same shut-off operation as is normally done by the hand of the pump operator.
- a relay which cuts off the entire electrical supply to the pump
- a solenoid of known type mounted on the end of the hose adjacent to the nozzle to produce the same shut-off operation as is normally done by the hand of the pump operator.
- I show the latter type in Fig. 3 at 6, being mounted on the end of the fuel delivery hose 8, and provided with insulated circuit wires which may be coiled around the hose and in contact therewith, or otherwise secured thereto.
- I provide a box or casing 12 which may be attached to the pump on the same side, 4, as face 5, and which contains most of the components of of my invention.
- the front of this casing 12 shows three number wheels 14 which may be made more or less like the price indicators in face 5 of the pump, to indicate dollars and cents up to $9.99, which is all that is required for most purposes, although if the price of gasoline continues to rise, it may be desirable to add a fourth number wheel for tens of dollars.
- a toothed wheel 16 (Fig. 1) to the unit cents wheel (that is, 0-9, the last price wheel on the right) which will rotate together with the unit cents wheel.
- the toothed wheel is provided with teeth which open and close a switch 26 ten times for each revolution of the unit cents wheel, so that for every penny registered on the price indicator 5, a circuit controlled by the toothed wheel can be opened and closed once.
- electrical pulses are provided for the operation of my device.
- the circuit controlled by the toothed wheel 16 is shown in Fig. l.
- a separate housing 18 is shown attached to pump 4 for toothed wheel 16.
- Shaft 19 of the toothed wheel extends into the pump 4 and is coupled into unit cents wheel 7 in any suitable manner, depending on the physical arrangement of the pump elements, either directly or through suitable gearing so that toothed wheel 16 is driven in the desired relationship with the unit cents wheel of the pump.
- a manually-operated switch 20 is also provided in housing 18 having two sets of contacts 200 and 20b, for disconnecting the entire system so as to enable the pump meter to be reset to zero after each sale without eifecting the operation of my device, which is automatically reset to zero at the end of each filling operation. Also, where the amount of gas to be bought is not announced in advance, there is no need to use my device, and switch 20 can then be left open.
- Terminals 22 and 24 of my device are connected to any suitable source of current, e. g., volts A.-C., which supplies the power for operating the device.
- any suitable source of current e. g., volts A.-C.
- switch 26 each time contact is made due to the action of the teeth of wheel 16, which is shown as having ten teeth, therefore the circuit will be closed at 26 each time another penny registers on the main meter 5.
- Each resulting current pulse passes down wire 28, through closed contact 3622 along wire 32 to solenoid 34.
- Solenoid 34 when energized, pulls in a magnetic plunger 36 as shown in Fig. 2, which swings lever 38, pivoted at 40, and retracts pawl 42 one tooth back on toothed ratchet wheel 44.
- Adjustable stop means are provided on pin 46 for limiting the travel of. the pawl at each stroke as required for proper operation, and tension means 48 can be readily adjusted to any desired tension by setting spring 50 to the desired point on lever arm 52. The pawl operation is thus regularly and completely adjustable.
- Ratchet wheel 44 rotates freely on shaft 54, which may also serve as the shaft for two identical ratchet wheels 56 and 58 as shown in Fig. 1.
- Attached to the ratchet wheel 44 for rotation therewith as a rotary unit on shaft 54 are a number wheel 60 bearing the numbers from 0-9, an eccentric cam 62 for actuating a switch 64 once for each tenth pulse received by solenoid 34, and a brake pulley wheel 66 for providing controlled friction between the rotary unit and its shaft.
- Suitable steps 68 and 70 may be keyed to shaft 54 to ensure retention of the rotary unit in the proper position with respect to solenoid 34.
- a V-belt 72 is provided which is tensioned and anchored by spring 74 to provide sufiicient friction for the rotary unit on shaft 54, to in- .sure that retraction of pawl 42 does not change the position of the rotary unit, but forward motion of pawl 42 under the action of spring 48, on cessation of the current pulse, is sufficient to overcome the light friction provided by the brake and advance the ratchet one tooth.
- a stationary spring pawl can be provided to insure that reverse motion of the ratchet Wheel cannot take place, but with the system shown this is not necessary.
- the numbers on the number wheel 69 are placed thereon in backward relation to the numbers on the corresponding unit cents wheel of the pump, so that each time a penny more is registered on the pump dial, a penny less is registered on dial 60. The reason for this will be explained later.
- Insulated cam 62 is so arranged that once each complete revolution of dial 613, when the dial registration is passing through zero, the cam 62 actuates switch 64 to close both of the two circuits controlled by this switch momentarily.
- Upper switch 64a therefore closes a circuit momentarily from switch 26 controlled by toothed wheel 16, line 28, line 80, switch 64a, line 82, line 34, normally closed switch 86b, line 88, to the second solenoid )0, and from the other terminal of this solenoid back through line 76 to input terminal 24 as previously described.
- Solenoid 90 is identical with solenoid 34 and on registering its tenth dime, its cam 92 actuates its swtich 94a in the same fashion to close a circuit extending from previously closed switch 64a, Wire 82, wire 96, switch 940, wire 98, normally closed switch 100a, wire 192, normally closed switch 104a, wire 106 to the dollar solenoid 108, and back from this solenoid to wire 76 as before.
- every tenth operation of solenoid 90 will reset its unit wheel to zero and register another unit on the dollars wheel.
- the timing of the insulated earns 62 and 92 is, of course, so phased with respect to the respective teeth of toothed wheel 16 that switches 26, 64a, and 94a are all closed simultaneously so that a pulse from switch 26 can be transmitted through the other two switches in series.
- solenoid mechanism associated with solenoid 108 is identical with those of solenoids 34 and 99, but it will be noted that its associated switch 100a is dilferent in that it is normally closed instead of being normally open like the previously described switches.
- switch 100a when the dollar indicator is reset to Zero, its insulated cam 110 at this moment opens switch 100a, and the cam face is arranged to have a sufficiently long dwell so that while the dollar wheel is indicating zero dollars, switch 109a remains open. Since the operation of my device is completed when all three dials indicate zero, this insures that at the conclusion of operation, the solenoid circuit is open, and the dollar indication can go no further.
- I provide three pushbuttons 124, 126, and 123, respectively associated with solenoids 34, and 108.
- pushbutton 124- When pushbutton 124- is depressed, it opens switch 30b and closes switch 300. This closes a circuit from input terminal 22, through line 139, through switch 30a, line 32, solenoid 34, and back to line 76 as before. This retracts the solenoid plunger and upon release of button 124 the number wheel 60 is stepped back one number.
- pushbutton 124 is depressed a second time, number wheel 60 is stepped back another unit.
- pushbuttons 124 and 126 operate in exactly the same way, that is, whenever each one of them is depressed once, the associated number wheel is stepped one unit. Thus, by pressing each pushbutton a number of times corresponding to the price desired, the total price can be set up in advance.
- an integral number of dollars worth of gasoline is usually required, it is almost always necessary only to push plunger 128 a few times, since this is almost always in the range of the amount desired.
- this can readily be registered by manipulating the pushbutton the necessary number of times.
- means for shutting off the pump when the price reaches a predetermined amount comprising: a second price meter manually adjustable to said predetermined amount, and operable backward toward zero setting as gas is pumped, and switch means operated when said second meter reaches zero setting to stop the flow of gas from said pump, said second price meter comprising separate number wheels rotatable to display the respective digits of the price, each fixed to a ratchet wheel having ratchet teeth corresponding to the number of digits on each number wheel, a solenoid for each ratchet wheel, a pawl for each ratchet wheel actuated by each said solenoid to step said ratchet wheel one step each time the solenoid is energized and deenergized and thus step the price count by one digit, means actuated by the fuel meter of the pump for completing one cycle of energization and deenergization of the cent
- a pump for producing flow of liquid a cost meter connected to be driven by said flow to register the cost of the fluid dis deniedd, a rotary element connected to said cost meter, a pulsing circuit controlled by said rotary element to produce a fixed number of pulses for each revolution of said rotary element, a second cost meter comprising a plurality of number wheels rotatable to display the respective digits of the desired cost and arranged to count backward from said desired cost as said first cost meter counts forward toward said desired cost, means for setting said second cost meter to a desired cost reading, switch means operable by each number wheel as it 6 reaches zero setting, and a circuit controlled by the concurrent operation of all said separate switch means to cut off the flow of fluid.
- said means for setting the second cost meter comprising an individual manually operable switch means for each number wheel, a separate solenoid operated ratchet for each number Wheel, and circuit means for connecting a source of power to each solenoid through its switch means each time said switch means is manually operated to step each number wheel one unit each time its associated switch means is manually operated, to thereby set each number wheel to a desired digit.
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- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
March 12, 1957 T. B. HARPER PRICE-CONTROLLED FUEL PUMP 2 Sheets-Sheet 1 Filed June 18, 1954 INVENTOR. 7 0 by B.HC!/",O/"
f fie/"neg March 12, 1957 HARPER 2,784,874
PRICE-CONTROLLED FUEL PUMP INVENTOR. To bgfiHar'pe Unite States Patent PRICE-CONTROLLED FUEL PUMP Toby B. Harper, Dolph, Ark.
Application June 18, 1954, Serial No. 437,815
Claims. (Cl. ZZZ-=46) This invention relates to a price-controlled fuel pump and has for its primary object the provision of a simple, compact and inexpensive control system for a fuel pump which can be preset to automatically deliver a given amount of fuel in terms of the total price of the fuel to be delivered.
In order to avoid the nuisance of waiting for change after purchasing gasoline, for example, the customer often asks for an amount of gas corresponding to what he wishes to pay or to the change he may pull out of his pocket. Most often, the customer will ask for an even amount, such as $2.00 worth of gas, or $3.00 or $4.00 worth, as the case may be. A major object of the invention is to provide a device which can be preset by the pump operator to the desired price, and when the amount of fuel corresponding to that price has been delivered, the pump will automatically shut off.
Another object is to produce such a device which can be readily set by means of electric pushbuttons to the desired amount.
Another object is to provide such a device as an attachment to a standard pump with a minimum of alteration or connection to the existing pump.
The specific nature of the invention as well as other obiects and advantages thereof will clearly appear from a description of a preferred embodiment as shown in the accompanying drawings, in which:
Fig. 1 is a schematic and circuit drawing of the metercontrolled switching system of my invention;
Fig. 2 is a side elevation of a counter-actuating solenoid for operating the number of dials and associated mechanism of my invention; and
Fig. 3 is a front elevation of a typical gasoline pump showing the manner in which my invention is attached thereto.
Referring to Fig. 3, a typical gas pump 2 is provided with the usual meter face 5 for registering the unit price of gasoline, the number of gallons delivered and the total price of the gas delivered. Such pumps, as is Well known, are electrically driven and are usually controlled by a hand-operated lever near the nozzle. Some pumps in common use are equipped with automatic nozzles which shut off the pump flow when the tank is filled, by means of an electric solenoid operating on the shutoil mechanism of the pump. It will be apparent that electrical control of the cutoff operation may be ac-- complished either by a relay which cuts off the entire electrical supply to the pump or by a solenoid of known type mounted on the end of the hose adjacent to the nozzle to produce the same shut-off operation as is normally done by the hand of the pump operator. For the purpose of illustration only, I show the latter type in Fig. 3 at 6, being mounted on the end of the fuel delivery hose 8, and provided with insulated circuit wires which may be coiled around the hose and in contact therewith, or otherwise secured thereto. When the circuit is closed to the solenoid or to the relay, the supply of gas will be abruptly stopped.
As shown in Fig. 3, I provide a box or casing 12 which may be attached to the pump on the same side, 4, as face 5, and which contains most of the components of of my invention. The front of this casing 12 shows three number wheels 14 which may be made more or less like the price indicators in face 5 of the pump, to indicate dollars and cents up to $9.99, which is all that is required for most purposes, although if the price of gasoline continues to rise, it may be desirable to add a fourth number wheel for tens of dollars.
One direct attachment to the existing price indicator is necessary. It is required to attach a toothed wheel 16 (Fig. 1) to the unit cents wheel (that is, 0-9, the last price wheel on the right) which will rotate together with the unit cents wheel. The toothed wheel is provided with teeth which open and close a switch 26 ten times for each revolution of the unit cents wheel, so that for every penny registered on the price indicator 5, a circuit controlled by the toothed wheel can be opened and closed once. Thus electrical pulses are provided for the operation of my device.
The circuit controlled by the toothed wheel 16 is shown in Fig. l. A separate housing 18 is shown attached to pump 4 for toothed wheel 16. Shaft 19 of the toothed wheel extends into the pump 4 and is coupled into unit cents wheel 7 in any suitable manner, depending on the physical arrangement of the pump elements, either directly or through suitable gearing so that toothed wheel 16 is driven in the desired relationship with the unit cents wheel of the pump. A manually-operated switch 20 is also provided in housing 18 having two sets of contacts 200 and 20b, for disconnecting the entire system so as to enable the pump meter to be reset to zero after each sale without eifecting the operation of my device, which is automatically reset to zero at the end of each filling operation. Also, where the amount of gas to be bought is not announced in advance, there is no need to use my device, and switch 20 can then be left open.
Solenoid 34, when energized, pulls in a magnetic plunger 36 as shown in Fig. 2, which swings lever 38, pivoted at 40, and retracts pawl 42 one tooth back on toothed ratchet wheel 44. Adjustable stop means are provided on pin 46 for limiting the travel of. the pawl at each stroke as required for proper operation, and tension means 48 can be readily adjusted to any desired tension by setting spring 50 to the desired point on lever arm 52. The pawl operation is thus regularly and completely adjustable.
Attached to the ratchet wheel 44 for rotation therewith as a rotary unit on shaft 54 are a number wheel 60 bearing the numbers from 0-9, an eccentric cam 62 for actuating a switch 64 once for each tenth pulse received by solenoid 34, and a brake pulley wheel 66 for providing controlled friction between the rotary unit and its shaft.
To continue with the circuit for energizing solenoid 34, the remaining terminal of the solenoid is connected to line 76, which leads back to the other terminal 24 of the external power source. 7
The numbers on the number wheel 69 are placed thereon in backward relation to the numbers on the corresponding unit cents wheel of the pump, so that each time a penny more is registered on the pump dial, a penny less is registered on dial 60. The reason for this will be explained later.
The solenoid mechanism associated with solenoid 108 is identical with those of solenoids 34 and 99, but it will be noted that its associated switch 100a is dilferent in that it is normally closed instead of being normally open like the previously described switches. Thus, when the dollar indicator is reset to Zero, its insulated cam 110 at this moment opens switch 100a, and the cam face is arranged to have a sufficiently long dwell so that while the dollar wheel is indicating zero dollars, switch 109a remains open. Since the operation of my device is completed when all three dials indicate zero, this insures that at the conclusion of operation, the solenoid circuit is open, and the dollar indication can go no further.
Whenever the dollar indicator first reads zero, the other two indicators are necessarily also zero, since they are so set, and switches 64b, Mb, and 149017 are all closed. A circuit is thus established through all three of these switches in series, from terminal 22, through line 73, switch 641), line 112, switch 941), line 1114, switch 136b, line 316, through shut-off solenoid 6, line 120, manual switch 2%, and back through line 122 to input terminal 24. This causes the solenoid to be actuated and the gas pump to be shut oif. initially, of course, the dials of my device had been set to the desired amount, and while gas was being delivered, the number wheels were being stepped backward from the desired amount toward zero. Thus when Zero is reached, the desired amount is new registered on the main price meter of the fuel pump and due to the action of switches 64b, 94b, and 10% as described above, the pump is shut off, which is the desired result.
It will now be shown how the desired amount is initially registered on the three dials of my device. For this purpose I provide three pushbuttons 124, 126, and 123, respectively associated with solenoids 34, and 108. When pushbutton 124- is depressed, it opens switch 30b and closes switch 300. This closes a circuit from input terminal 22, through line 139, through switch 30a, line 32, solenoid 34, and back to line 76 as before. This retracts the solenoid plunger and upon release of button 124 the number wheel 60 is stepped back one number. When pushbutton 124 is depressed a second time, number wheel 60 is stepped back another unit. It can readily be seen that pushbuttons 124 and 126 operate in exactly the same way, that is, whenever each one of them is depressed once, the associated number wheel is stepped one unit. Thus, by pressing each pushbutton a number of times corresponding to the price desired, the total price can be set up in advance. In practice, since an integral number of dollars worth of gasoline is usually required, it is almost always necessary only to push plunger 128 a few times, since this is almost always in the range of the amount desired. However, if an odd number of pennies worth of gasoline is also required, this can readily be registered by manipulating the pushbutton the necessary number of times.
It will thus be seen that I have provided a simple device which can be inexpensively made out of a few standard units, such as standard stack switches, and other common parts such as pawl and ratchet solenoid control mechanisms, etc. Alternatively, the unit wheel for each solenoid may be readily assembled from inexpensively made stampings or castings. The device is also simple and practically foolproof in operation, and can readily be attached to any standard pump of the various types now in common use.
Instead of the ratchet plunger operating to step the ratchet wheel on the return stroke by spring action, it could obviously he stepped on the initial stroke and merely reset by the spring. Likewise, the normally open circuits could be operated as normally closed circuits, and vice versa.
It will be apparent that the embodiments shown are only exemplary and that various modifications can be made in construction and arrangement within the scope of my invention as defined in the appended claims.
I claim:
1. For use with a fuel pump having a price meter for indicating continuously the total price of the fuel pumped, means for shutting off the pump when the price reaches a predetermined amount, comprising: a second price meter manually adjustable to said predetermined amount, and operable backward toward zero setting as gas is pumped, and switch means operated when said second meter reaches zero setting to stop the flow of gas from said pump, said second price meter comprising separate number wheels rotatable to display the respective digits of the price, each fixed to a ratchet wheel having ratchet teeth corresponding to the number of digits on each number wheel, a solenoid for each ratchet wheel, a pawl for each ratchet wheel actuated by each said solenoid to step said ratchet wheel one step each time the solenoid is energized and deenergized and thus step the price count by one digit, means actuated by the fuel meter of the pump for completing one cycle of energization and deenergization of the cents wheel of said second meter foreach cents worth of fuel pumped and a cam rotatable with each number wheel, a switch for each wheel except the highest order, operable by its cam when the number wheel passes through a given number setting to control the energization of the solenoid of the next higher order Wheel up to the last one.
2. The invention according to claim 1, and a switch for the highest order wheel arranged to deenergize all of the solenoids at the zero setting of said highest order wheel.
3. The invention according to claim 2, and a manually operable switch for each solenoid for individually stepping each solenoid to a desired setting.
4. In a fluid dispensing apparatus, a pump for producing flow of liquid, a cost meter connected to be driven by said flow to register the cost of the fluid dis pensed, a rotary element connected to said cost meter, a pulsing circuit controlled by said rotary element to produce a fixed number of pulses for each revolution of said rotary element, a second cost meter comprising a plurality of number wheels rotatable to display the respective digits of the desired cost and arranged to count backward from said desired cost as said first cost meter counts forward toward said desired cost, means for setting said second cost meter to a desired cost reading, switch means operable by each number wheel as it 6 reaches zero setting, and a circuit controlled by the concurrent operation of all said separate switch means to cut off the flow of fluid.
5. The invention according to claim 4, said means for setting the second cost meter comprising an individual manually operable switch means for each number wheel, a separate solenoid operated ratchet for each number Wheel, and circuit means for connecting a source of power to each solenoid through its switch means each time said switch means is manually operated to step each number wheel one unit each time its associated switch means is manually operated, to thereby set each number wheel to a desired digit.
References Cited in the file of this patent UNITED STATES PATENTS 2,060,674 Hicks Nov. 10, 1936 2,228,820 Griflith et a1. Jan. 14, 1941 2,269,937 Hart Jan. 13, 1942 2,348,769 Waugh May 16, 1944 2,577,115 Eickner Dec. 4, 1951
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437815A US2784874A (en) | 1954-06-18 | 1954-06-18 | Price-controlled fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437815A US2784874A (en) | 1954-06-18 | 1954-06-18 | Price-controlled fuel pump |
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US2784874A true US2784874A (en) | 1957-03-12 |
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Application Number | Title | Priority Date | Filing Date |
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US437815A Expired - Lifetime US2784874A (en) | 1954-06-18 | 1954-06-18 | Price-controlled fuel pump |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998188A (en) * | 1957-02-18 | 1961-08-29 | Mast Dev Company | Universal counter |
US3037666A (en) * | 1958-01-21 | 1962-06-05 | Veeder Root Inc | Preselector mechanism for liquid dispensing apparatus |
US3045868A (en) * | 1959-09-09 | 1962-07-24 | Tokheim Corp | Single lever dispenser control apparatus |
US3115573A (en) * | 1960-04-05 | 1963-12-24 | Durant Mfg Company | Counter |
US3138289A (en) * | 1961-01-25 | 1964-06-23 | Jr Harold D Jones | Apparatus for terminating the flow of metered materials |
US3203626A (en) * | 1963-02-20 | 1965-08-31 | Addressograph Multigraph | Counter |
US3254728A (en) * | 1964-03-11 | 1966-06-07 | Howe Richardson Scale Co | Automatic batch weigher using digital count-down control system |
US3343720A (en) * | 1965-07-06 | 1967-09-26 | William R Barry | Liquid dispensing quantity selector |
US3353710A (en) * | 1966-05-12 | 1967-11-21 | Bowser Inc | Remote control apparatus for dispensing |
US3723826A (en) * | 1970-09-30 | 1973-03-27 | E Kelly | Control apparatus for fuel pumps |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2060674A (en) * | 1931-03-28 | 1936-11-10 | Teleregister Corp | Registering system |
US2228820A (en) * | 1937-10-21 | 1941-01-14 | Sf Bowser & Co Inc | Predetermined stop mechanism |
US2269937A (en) * | 1940-02-16 | 1942-01-13 | Frank D Hart | Coin controlled liquid dispensing apparatus |
US2348769A (en) * | 1939-04-11 | 1944-05-16 | Tokheim Oil Tank & Pump Co | Liquid dispensing means |
US2577115A (en) * | 1945-04-16 | 1951-12-04 | Socony Vacuum Oil Co Inc | Inventory control device for fuel dispensing devices |
-
1954
- 1954-06-18 US US437815A patent/US2784874A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2060674A (en) * | 1931-03-28 | 1936-11-10 | Teleregister Corp | Registering system |
US2228820A (en) * | 1937-10-21 | 1941-01-14 | Sf Bowser & Co Inc | Predetermined stop mechanism |
US2348769A (en) * | 1939-04-11 | 1944-05-16 | Tokheim Oil Tank & Pump Co | Liquid dispensing means |
US2269937A (en) * | 1940-02-16 | 1942-01-13 | Frank D Hart | Coin controlled liquid dispensing apparatus |
US2577115A (en) * | 1945-04-16 | 1951-12-04 | Socony Vacuum Oil Co Inc | Inventory control device for fuel dispensing devices |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998188A (en) * | 1957-02-18 | 1961-08-29 | Mast Dev Company | Universal counter |
US3037666A (en) * | 1958-01-21 | 1962-06-05 | Veeder Root Inc | Preselector mechanism for liquid dispensing apparatus |
US3045868A (en) * | 1959-09-09 | 1962-07-24 | Tokheim Corp | Single lever dispenser control apparatus |
US3115573A (en) * | 1960-04-05 | 1963-12-24 | Durant Mfg Company | Counter |
US3138289A (en) * | 1961-01-25 | 1964-06-23 | Jr Harold D Jones | Apparatus for terminating the flow of metered materials |
US3203626A (en) * | 1963-02-20 | 1965-08-31 | Addressograph Multigraph | Counter |
US3254728A (en) * | 1964-03-11 | 1966-06-07 | Howe Richardson Scale Co | Automatic batch weigher using digital count-down control system |
US3343720A (en) * | 1965-07-06 | 1967-09-26 | William R Barry | Liquid dispensing quantity selector |
US3353710A (en) * | 1966-05-12 | 1967-11-21 | Bowser Inc | Remote control apparatus for dispensing |
US3723826A (en) * | 1970-09-30 | 1973-03-27 | E Kelly | Control apparatus for fuel pumps |
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