Patent US3589176A successfully refreshed from Google Patents.
US3589176A
Expired / Lapsed
US
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System for calculating remaining mileage
Assignee: Individual
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Filing: 1969-02-03
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Granted: 1971-06-29
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Expires: 1989-02-03
Abstract
Abstract A system for calculating the remaining mileage available on the remaining fuel of a vehicle comprises circuitry to solve the following equation:
Inventors
- 👤 James J Wellons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:22
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/70; G01; G01F; G01F9/00; G01F9/008
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of said vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, means for generating a fourth signal representative of the fuel consumed during said interval of time and means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal, said means for forming said product comprising a divider for dividing said third signal by said fourth signal to form a first quantity, a first multiplier for multiplying said first quantity by said second signal to form a second quantity, a second multiplier for multiplying said second quantity by said first signal to form a third quantity, and indicator means for displaying said third quantity.
Claim 2
Dependent Claim
155 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of said vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, means for generating a fourth signal representative of the fuel consumed during said interval of time and means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal, said means for forming said product comprising a divider for dividing said third signal by said fourth signal to form a first quantity, a first multiplier for multiplying said first quantity by said second signal to form a second quantity, a second multiplier for multiplying said second quantity by said first signal to form a third quantity, and indicator means for displaying said third quantity.
Claim 3
Dependent Claim
96 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of said vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, said last-named means including an oscillator, means for generating a fourth signal representative of the fuel consumed during said interval of time, and means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal.
Claim 4
Dependent Claim
96 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of said vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, said last-named means including an oscillator, means for generating a fourth signal representative of the fuel consumed during said interval of time, and means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal.
Claim 5
Dependent Claim
112 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of the vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, means for generating a fourth signal representative of the fuel consumed during said interval of time, means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal, and means for substituting a signal representative of a fictitious velocity for said first signal when said first signal is equal to zero.
Claim 6
Dependent Claim
112 words
Apparatus for indicating the remaining distance available for the remaining fuel in a vehicle comprising means for generating a first signal representative of the velocity of the vehicle, means for generating a second signal representative of said remaining fuel, means for generating a third signal representative of an interval of time, means for generating a fourth signal representative of the fuel consumed during said interval of time, means for forming the product of said first signal, said second signal, said third signal and the reciprocal of said fourth signal, and means for substituting a signal representative of a fictitious velocity for said first signal when said first signal is equal to zero.
Claim 7
Dependent Claim
66 words
Apparatus in accordance with claim 3 wherein said means for substituting includes a velocity detector, said velocity detector comprising an input for receiving said first signal, two outputs, means for generating a signAl on one of said outputs when said first signal is greater than zero and means for generating a signal on the other of said outputs when said first signal is equal to zero.
Claim 8
Independent Claim
142 words
A method for indicating the remaining distance available for the remaining fuel in a vehicle comprising generating a first signal representative of the velocity of the vehicle, generating a second signal representative of the remaining fuel, generating a third signal representative of an interval of time, generating a fourth signal representative of the fuel consumed during the interval of time, forming the product of the first signal, the second signal, the third signal, and the reciprocal of the fourth signal, said step of generating the fourth signal comprising generating a fifth signal representative of the fuel remaining, generating a sixth signal representative of the fuel remaining at a time one interval earlier, and subtracting the fifth signal from the sixth signal, and substituting a signal representative of a fictitious velocity for the first signal when the first signal is equal to zero.
Claim 9
Independent Claim
142 words
A method for indicating the remaining distance available for the remaining fuel in a vehicle comprising generating a first signal representative of the velocity of the vehicle, generating a second signal representative of the remaining fuel, generating a third signal representative of an interval of time, generating a fourth signal representative of the fuel consumed during the interval of time, forming the product of the first signal, the second signal, the third signal, and the reciprocal of the fourth signal, said step of generating the fourth signal comprising generating a fifth signal representative of the fuel remaining, generating a sixth signal representative of the fuel remaining at a time one interval earlier, and subtracting the fifth signal from the sixth signal, and substituting a signal representative of a fictitious velocity for the first signal when the first signal is equal to zero.
References Cited (Backward Citations)
US2519416A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |