Patent US3732723A successfully refreshed from Google Patents.
US3732723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining distillation cut points
Assignee: Shell USA Inc
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Filing: 1970-08-13
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Granted: 1973-05-15
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Expires: 1990-08-13
Abstract
Abstract An apparatus for automatically performing distillation analysis of liquids wherein a sample of the liquid is vaporized while the temperature of the vapor and the weight of the sample are continuously measured and recorded. The data is supplied to a computer programmed to provide preset percent distillation points for the sample and hold circuits that can be set to trigger at any preselected boiling point or cut point.
Inventors
- 👤 A Goolsby
- 👤 B Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:31
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
213 words
An apparatus for automatically conducting distillation analysis of liquids comprising: a sample tube; a support beam flexurally mounted at a point between its ends, said sample tube being attached to one end of said beam; heating means disposed to heat said sample tube to vaporize a liquid sample disposed therein; purge means disposed to purge said sample tube after said liquid sample is vaporized; temperature measuring means disposed to measure the temperature of the vapor evolved from said sample tube and supply a signal related thereto; weighing means disposed to determine the weight of the sample tube and sample contained therein and supply a signal related thereto; fill means disposed to supply a sample of said liquid to said sample tube; a control circuit, said control circuit being responsive to said temperature measuring means and said weighing means to operate said fill means to fill said sample tube with a preset quantity of a liquid sample, energize said heating means, energize said purge means after said liquid sample is vaporized and adjust said weighing means for the weight of the sample tube after said sample is vaporized; and recording means, said temperature measuring means and said weighing means being coupled to said recording means to record said related signals in a correlatable manner.
Claim 2
Independent Claim
213 words
An apparatus for automatically conducting distillation analysis of liquids comprising: a sample tube; a support beam flexurally mounted at a point between its ends, said sample tube being attached to one end of said beam; heating means disposed to heat said sample tube to vaporize a liquid sample disposed therein; purge means disposed to purge said sample tube after said liquid sample is vaporized; temperature measuring means disposed to measure the temperature of the vapor evolved from said sample tube and supply a signal related thereto; weighing means disposed to determine the weight of the sample tube and sample contained therein and supply a signal related thereto; fill means disposed to supply a sample of said liquid to said sample tube; a control circuit, said control circuit being responsive to said temperature measuring means and said weighing means to operate said fill means to fill said sample tube with a preset quantity of a liquid sample, energize said heating means, energize said purge means after said liquid sample is vaporized and adjust said weighing means for the weight of the sample tube after said sample is vaporized; and recording means, said temperature measuring means and said weighing means being coupled to said recording means to record said related signals in a correlatable manner.
Claim 3
Dependent Claim
27 words
The apparatus of claim 1 wherein said weighing means comprises linear displacement measuring means disposed to measure the movement of said beam as the sample is vaporized.
Claim 4
Dependent Claim
23 words
The apparatus of claim 1 wherein said weighing means comprises a strain gauge weigh cell disposed to weigh said sample tube and sample.
Claim 5
Dependent Claim
23 words
The apparatus of claim 1 wherein said control circuit includes means for setting said pre-set quantity of sample supplied to said sample tube.
Claim 6
Dependent Claim
55 words
The apparatus of claim 1 wherein one of said temperature measuring means and weighing means is coupled to comparing circuit means, said comparing circuit means comparing the temperature or weight of the sample with a set joint and supplying the other of said temperature or weight measurements of the sample to a process control means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |