Patent US2228647A successfully refreshed from Google Patents.
Patent US3906198A successfully refreshed from Google Patents.
US3906198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Net weight oil computer or the like
Assignee: TDK Micronas GmbH
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Filing: 1974-10-11
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Granted: 1975-09-16
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Expires: 1994-10-11
Abstract
Abstract A net weight oil computer including a vibration densitometer and a turbine flowmeter. The flowmeter produces output pulses at a frequency directly proportional to the rate of volume flow through a pipeline. The output of the flowmeter is impressed upon the pole of a single pole, double throw electronic switch. One switch contact is connected to an indicator through a divider, a driver amplifier and a counter. The other contact is also connected to an indicator through a divider, a driver amplifier and a counter. The switch is operated by a gate generator connected from the densitometer. The gate generator produces an output pulse of a pulse width directly proportional to the reciprocal of the percent, by weight, of oil or water in the pipeline or some function thereof. A temperature probe is inserted in the line to vary the pulse width or time between pulses in accordance with oil temperature.
Inventors
- 👤 Milton H November
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/57; G01; G01F; G01F1/00; G01F1/76; G01F1/86; G01F1/90; G01F15/00; G01F15/02; G01F15/022; G01F15/024
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon reciept of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternately from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fiFth means causing one of said times Tw and Tt to be equal to the following expression
Claim 2
Dependent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon reciept of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternately from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fiFth means causing one of said times Tw and Tt to be equal to the following expression
Claim 3
Dependent Claim
19 words
The invention as defined in claim 1, wherein utilization means are connected from the output lead of said switch.
Claim 4
Dependent Claim
51 words
The invention as defined in claim 2, wherein said utilization means includes a pulse counter connected from the output lead of said switch, and an indicator to indicate the number counted by said counter, all of said means being constructed to cause said counter to read in total mass flow units.
Claim 5
Dependent Claim
21 words
The invention as defined in claim 3, wherein said second means includes a densitometer having a probe immersed in the mixture.
Claim 6
Dependent Claim
37 words
The invention as defined in claim 4, wherein said third means includes a temperature sensitive probe immersed in the mixture to vary the output of said third means in direct proportion to the temperature of the mixture.
Claim 7
Dependent Claim
18 words
The invention as defined in claim 5, wherein said first means includes a device mounted in the pipeline.
Claim 8
Dependent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon receipt of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternatley from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fifth means causing one of said times Tw and Tt to be equal to the following expression
Claim 9
Dependent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon receipt of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternatley from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fifth means causing one of said times Tw and Tt to be equal to the following expression
Claim 10
Dependent Claim
19 words
The invention as defined in claim 7, wherein utilization means are connected from the output lead of said switch.
Claim 11
Dependent Claim
51 words
The invention as defined in claim 8, wherein said utilization means includes a pulse counter connected from the output lead of said switch, and an indicator to indicate the number counted by said counter, all of said means being constructed to cause said counter to read in total mass flow units.
Claim 12
Dependent Claim
21 words
The invention as defined in claim 9, wherein said second means includes a densitometer having a probe immersed in the mixture.
Claim 13
Dependent Claim
37 words
The invention as defined in claim 10, wherein said third means includes a temperature sensitive probe immersed in the mixture to vary the output of said third means in direct proportion to the temperature of the mixture.
Claim 14
Dependent Claim
18 words
The invention as defined in claim 11, wherein said first means includes a device mounted in the pipeline.
Claim 15
Dependent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon receipt of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternately from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fifth means causing one of said times Tw and Tt to be equal to the following expression
Claim 16
Dependent Claim
299 words
A net weight fluid computer for producing an output directly proportional to the total mass flow of at least one of first and second fluids flowing as a mixture in a pipeline, said computer comprising: first means connected with the pipeline for producing first pulses at a pulse repetition frequency directly proportional to the volume rate of total flow in the pipeline; second means connected with the pipeline for producing an output directly proportional to the average density dm of the mixture in the pipeline; third means for producing an output directly proportional to the density do of the first fluid; fourth means for producing an output directly proportional to the density dw of the second fluid; a switch having first input lead connected from said first means to receive said first pulses, said switch having at least one output lead connected therefrom, said switch having a second input lead and being electrically operable upon receipt of a pulse on said second input lead to change the connection between the first input and the output lead of said switch; and fifth means connected from said second, third and fourth means to receive the outputs thereof and adapted to impress second pulses on the second input lead of said switch to cause first pulses to be passed and interrupted alternately from the first input lead to the output lead of said switch, said fifth means causing said second pulses to have a time width Tw, said fifth means causing said second pulses to be generated at a rate such that the time between the trailing edge of one second pulse and the leading edge of the next succeeding second pulse is Tt, said fifth means causing one of said times Tw and Tt to be equal to the following expression
Claim 17
Dependent Claim
19 words
The invention as defined in claim 13, wherein utilization means are connected from the output lead of said switch.
Claim 18
Dependent Claim
51 words
The invention as defined in claim 14, wherein said utilization means includes a pulse counter connected from the output lead of said switch, and an indicator to indicate the number counted by said counter, all of said means being constructed to cause said counter to read in total mass flow units.
Claim 19
Dependent Claim
21 words
The invention as defined in claim 15, wherein said second means includes a densitometer having a probe immersed in tHe mixture.
Claim 20
Dependent Claim
37 words
The invention as defined in claim 16, wherein said third means includes a temperature sensitive probe immersed in the mixture to vary the output of said third means in direct proportion to the temperature of the mixture.
Claim 21
Dependent Claim
18 words
The invention as defined in claim 17, wherein said first means incldes a device mounted in the pipeline.
References Cited (Backward Citations)
US3385108A
Cited
US3774448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |