US4422413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of precisely upgrading pump fuel in a motor vehicle
Assignee: MET-CON MANUFACTURING Ltd PO BOX 391 1701 EAST FIRST ST THIEF RIVER FALLS MN 56701 A OF LP
•
Filing: 1981-08-10
•
Granted: 1983-12-27
•
Expires: 2001-08-10
Abstract
Abstract An on-board motor vehicle fuel treatment system for a vehicle having primary and secondary fuel tanks, includes a discrete reservoir for liquid fuel supplement, an electrically powerable constant volumetric displacement pump, a transfer line having a suction line connecting the reservoir to the pump and a delivery line connecting the pump to the tanks, a check valve in each of the suction and delivery lines, a selector valve in the delivery line for normally connecting the pump to the primary tank and alternatively connecting the pump to the secondary tank, a normally open pump switch, an adjustable timer for maintaining the pump switch closed for a duration of time has a timer control for basing time duration on the basis of untreated volumetric units of fuel, and a switch for starting the timer and adjustable time duration for each volumetric unit on the timer control; the timer controlled pump switch is wired in series with the pump and a normally open selector valve switch is wired in series with the pump switch and is parallel with the pump. A method of precisely upgrading pump grade fuel in a motor vehicle includes the steps of presetting a timer for X units of time per singular volumetric quantity, filling a random quantity of fuel into the vehicle, adjusting the timer to the random quantity, initiating operation of the timer, transferring supplement into the fuel at a predetermined volumetric rate per unit of time for a time period determined by the timer, and admixing the supplement into the pump fuel to produce a precisely ratioed and upgraded fuel.
Inventors
- 👤 Jeffrey W. Pederson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:35
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
181 words
An on-board motor vehicle fuel treatment system for a motor vehicle having a primary fuel tank, comprising: (a) a discrete reservoir for liquid fuel supplement; (b) an electrically powerable pump for pumping liquid supplement at a constant volumetric amount per unit of time from said reservoir to said tank; (c) a fuel supplement transfer line having a suction line fluidly connecting said reservoir to an inlet of said pump, and a delivery line connecting an outlet of said pump to said tank; (d) a normally open pump control switch in a power lead between a source of electromotive power and said pump; and (e) a timer operatively connected to said switch, said timer being operative to maintain said switch closed and to effect operation of said pump for a duration of time, said timer having (1) an adjustable timer control having means for setting a duration of time based upon volumetric units of fuel, said control being adjustably settable on the basis of the volumetric units of untreated fuel in said tank, and (2) means for initiating operation of said timer.
Claim 2
Dependent Claim
181 words
An on-board motor vehicle fuel treatment system for a motor vehicle having a primary fuel tank, comprising: (a) a discrete reservoir for liquid fuel supplement; (b) an electrically powerable pump for pumping liquid supplement at a constant volumetric amount per unit of time from said reservoir to said tank; (c) a fuel supplement transfer line having a suction line fluidly connecting said reservoir to an inlet of said pump, and a delivery line connecting an outlet of said pump to said tank; (d) a normally open pump control switch in a power lead between a source of electromotive power and said pump; and (e) a timer operatively connected to said switch, said timer being operative to maintain said switch closed and to effect operation of said pump for a duration of time, said timer having (1) an adjustable timer control having means for setting a duration of time based upon volumetric units of fuel, said control being adjustably settable on the basis of the volumetric units of untreated fuel in said tank, and (2) means for initiating operation of said timer.
Claim 3
Dependent Claim
30 words
A vehicle fuel treatment system according to claim 1, in which said supplement reservoir includes means for filling of the reservoir, and means for tamper-proof closing of the filling means.
Claim 4
Dependent Claim
36 words
A vehicle fuel treatment system according to claim 1, in which said transfer line includes a check valve for precluding reserve flow back to said reservoir, said check valve being fluidly in series with said pump.
Claim 5
Dependent Claim
26 words
A vehicle fuel treatment system according to claim 3, including two of said check valves, said check valves being one on each side of said pump.
Claim 6
Dependent Claim
24 words
A vehicle fuel treatment system according to claim 1, including a valve in said delivery line for selectively connecting said pump to the tank.
Claim 7
Dependent Claim
55 words
A vehicle fuel treatment system according to claim 5, having a second fuel tank, and in which said delivery line has a discrete outlet for each tank, said delivery line valve being a selector valve upstream of the delivery line outlets for selectively connecting said pump exclusively to a selected one of the fuel tanks.
Claim 8
Dependent Claim
26 words
A vehicle fuel treatment system according to claim 6, in which the selector valve has means for fluidly closing the delivery line to the non-selected tank.
Claim 9
Dependent Claim
26 words
A vehicle fuel treatment system according to either of claims 6 or 7, in which the selector valve normally connects the pump to the primary tank.
Claim 10
Dependent Claim
35 words
A vehicle fuel treatment system according to either of claims 6 or 7, including a check valve between the pump and the selector valve, for precluding reverse flow from the selector valve to the pump.
Claim 11
Dependent Claim
42 words
A vehicle fuel treatment system according to either of claims 6 or 7, including a tank selector switch operatively connected to said selector valve, said switch being electrically connected in series with said pump control switch, and in parallel with said pump.
Claim 12
Dependent Claim
37 words
A vehicle fuel treatment system according to either of claims 1, 6 or 7, in which said timer includes means for adjusting a time duration of pump switch closing with respect to timer control volumetric set units.
Claim 13
Dependent Claim
118 words
A fuel treatment system in a motor vehicle having a fuel tank comprising: (a) a discrete reservoir for liquid fuel supplement, said reservoir being at a level above the level of the vehicle tank; (b) a supplement transfer line connecting the reservoir to the fuel tank; (c) a normally closed valve in said transfer line; and (d) a timer connected to said valve and operative for opening said valve, said timer having (1) an adjustable timer control having means for setting a duration of time based upon volumetric units of fuel, said control being adjustably settable on the basis of the volumetric units of untreated fuel in said tank, and (2) means for initiating operating of said timer.
Claim 14
Dependent Claim
118 words
A fuel treatment system in a motor vehicle having a fuel tank comprising: (a) a discrete reservoir for liquid fuel supplement, said reservoir being at a level above the level of the vehicle tank; (b) a supplement transfer line connecting the reservoir to the fuel tank; (c) a normally closed valve in said transfer line; and (d) a timer connected to said valve and operative for opening said valve, said timer having (1) an adjustable timer control having means for setting a duration of time based upon volumetric units of fuel, said control being adjustably settable on the basis of the volumetric units of untreated fuel in said tank, and (2) means for initiating operating of said timer.
Claim 15
Dependent Claim
30 words
A fuel treatment system according to claim 12, in which said valve is an electrically operable solenoid valve connected in series with said timer to a source of electromotive power.
Claim 16
Dependent Claim
24 words
A fuel treatment system according to claim 12, in which the transfer line is fluidly connected to a fill pipe extending from said tank.
Claim 17
Dependent Claim
25 words
A fuel treatment system according to claim 14, in which a saddle valve on the fill pipe connects the transfer line to the fill pipe.
Claim 18
Dependent Claim
32 words
A fuel treatment system according to either of claim 14 or 15, in which the transfer line is connected to the fill pipe at a level above the level of the tank.
Claim 19
Independent Claim
127 words
A method of precisely upgrading pump grade petro fuel in a motor vehicle, comprising the steps of: (a) pre-setting a timer in the vehicle for X units of time per singular volumetric quantity of fuel; (b) filling the vehicle fuel tank with a recorded random volumetric quantity of pump fuel; (c) adjusting the timer to the recorded random volumetric quantity; (d) initiating operation of the timer; (e) transferring fuel upgrading supplement into the recorded random volumetric quantity of fuel at a predetermined volumetric rate per unit of time, for an undetermined time period which is ultimately determined by the so-adjusted timer; and (f) intimately admixing the supplement into the pump fuel while in said tank, in a precise predetermined ratio and thereby producing a precisely upgraded fuel.
Claim 20
Independent Claim
127 words
A method of precisely upgrading pump grade petro fuel in a motor vehicle, comprising the steps of: (a) pre-setting a timer in the vehicle for X units of time per singular volumetric quantity of fuel; (b) filling the vehicle fuel tank with a recorded random volumetric quantity of pump fuel; (c) adjusting the timer to the recorded random volumetric quantity; (d) initiating operation of the timer; (e) transferring fuel upgrading supplement into the recorded random volumetric quantity of fuel at a predetermined volumetric rate per unit of time, for an undetermined time period which is ultimately determined by the so-adjusted timer; and (f) intimately admixing the supplement into the pump fuel while in said tank, in a precise predetermined ratio and thereby producing a precisely upgraded fuel.
Claim 21
Dependent Claim
22 words
A method according to claim 17, including the step of tamperproofly sealing a reservoir of supplement, from which to draw for upgrading.
Claim 22
Independent Claim
24 words
A method according to either of claims 17 or 18 including the step of checking against flow of pump fuel into not-yet transferred supplement.
Claim 23
Dependent Claim
24 words
A method according to claim 17, including the step of selectively transferring supplement into more than one fuel tank, one tank at a time.
Claim 24
Independent Claim
24 words
A method according to either of claims 17 or 20, including the step of normally precluding fluid communication between the supplement and the fuel.
Claim 25
Dependent Claim
142 words
An on-board fuel treatment system for a motor vehicle having a primary fuel tank, for precisely adding liquid fuel supplement to a random but recorded quantity of untreated pump fuel taken into said tank, comprising: (a) a discrete reservoir for liquid fuel supplement; (b) a fuel supplement transfer line connecting said reservoir to said tank; (c) means fluidly in said transfer line for normally closing said line; said means being electrically operable for intermittent opening of said line; (d) A normally open electric control switch wired in series with said means; (e) a timer connected to said switch, said timer being operative for manipulating said switch closed for effecting opening of said supplement transfer line for a duration of time based upon said quantity; and (f) means for selectively initiating operation of said timer independently of filling of the tank with fuel.
Claim 26
Dependent Claim
142 words
An on-board fuel treatment system for a motor vehicle having a primary fuel tank, for precisely adding liquid fuel supplement to a random but recorded quantity of untreated pump fuel taken into said tank, comprising: (a) a discrete reservoir for liquid fuel supplement; (b) a fuel supplement transfer line connecting said reservoir to said tank; (c) means fluidly in said transfer line for normally closing said line; said means being electrically operable for intermittent opening of said line; (d) A normally open electric control switch wired in series with said means; (e) a timer connected to said switch, said timer being operative for manipulating said switch closed for effecting opening of said supplement transfer line for a duration of time based upon said quantity; and (f) means for selectively initiating operation of said timer independently of filling of the tank with fuel.
References Cited (Backward Citations)
US2431590A
Cited
US3490422A
Cited
US3631843A
Cited
US4031864A
Cited
US4096829A
Cited
US4240380A
Cited
US4161160A
Cited
US4364370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |