US4036062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample dilution
Assignee: Phillips Petroleum Co
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Filing: 1976-08-31
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Granted: 1977-07-19
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Expires: 1996-08-31
Abstract
Abstract Two conduit means having a preselected volumetric relationship one to the other, at least one of these conduit means having a fluid oscillator means forming at least a portion thereof, are utilized in the dilution of a sample by filling one of the conduit means with a diluent liquid and the other with a sample material, then connecting the two conduit means together in a closed conduit loop and circulating the contents of the loop through the loop in order to cause uniform mixing of the sample material with the diluent liquid. In a preferred embodiment the diluted sample material is resampled from the conduit loop for further use or analysis.
Inventors
- 👤 Charles G. Cruzan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:43
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N1/00; G01N1/28; G01N1/38; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652; Y10T137/8766
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
142 words
Apparatus comprising: first conduit means having a passageway therethrough with a first internal volume; second conduit means having a passageway therethrough with a second internal volume, said second internal volume having a predetermined size relationship to said first volume; fluid oscillator means, forming at least a portion of at least one of said first and second conduit means, for imparting flow oscillation to at least a portion of the fluid passing therethrough; means for filling said passageway of said first conduit means with a diluent liquid; means for filling said passageway of said second conduit means with a sample material; means for connecting said passageway of said first conduit means and said passageway of said second conduit means to form a closed conduit loop; and means for circulating said diluent liquid and sample material through said conduit loop to cause mixing thereof.
Claim 2
Dependent Claim
142 words
Apparatus comprising: first conduit means having a passageway therethrough with a first internal volume; second conduit means having a passageway therethrough with a second internal volume, said second internal volume having a predetermined size relationship to said first volume; fluid oscillator means, forming at least a portion of at least one of said first and second conduit means, for imparting flow oscillation to at least a portion of the fluid passing therethrough; means for filling said passageway of said first conduit means with a diluent liquid; means for filling said passageway of said second conduit means with a sample material; means for connecting said passageway of said first conduit means and said passageway of said second conduit means to form a closed conduit loop; and means for circulating said diluent liquid and sample material through said conduit loop to cause mixing thereof.
Claim 3
Dependent Claim
26 words
Apparatus in accordance with claim 1 wherein said oscillator means comprises feedback passageway means for periodically redirecting at least a portion of the fluid passing therethrough.
Claim 4
Dependent Claim
21 words
Apparatus in accordance with claim 1 additionally comprising means for detecting the frequency of oscillation produced by said fluid oscillation means.
Claim 5
Dependent Claim
22 words
Apparatus in accordance with claim 1 additionally comprising means for removing a preselected volume of diluted sample material from said conduit loop.
Claim 6
Dependent Claim
15 words
Apparatus in accordance with claim 1 wherein said means for circulating comprises a pump means.
Claim 7
Dependent Claim
17 words
Apparatus in accordance with claim 5 wherein said pump means is associated with said first conduit means.
Claim 8
Dependent Claim
24 words
Apparatus in accordance with claim 1 wherein said first and second conduit means comprise tubing having an inside diameter greater than about 0.2 inches.
Claim 9
Dependent Claim
23 words
Apparatus in accordance with claim 4 additionally comprising means for analyzing said preselected volume of diluted sample material removed from said conduit loop.
Claim 10
Dependent Claim
19 words
Apparatus in accordance with claim 1 wherein said fluid oscillator means is a part of said first conduit means.
Claim 11
Dependent Claim
26 words
Apparatus in accordance with claim 9 wherein said oscillator means comprises feedback passageway means for periodically redirecting at least a portion of the fluid passing therethrough.
Claim 12
Dependent Claim
21 words
Apparatus in accordance with claim 10 additionally comprising means for detecting the frequency of oscillation produced by said fluid oscillation means.
Claim 13
Independent Claim
86 words
A method for diluting a sample, said method comprising: introducing a first preselected volume of a sample material into a first portion of a circuitous path; introducing a second preselected volume of a diluent liquid into a second portion of said circuitous path; circulating said sample material and diluent liquid around said circuitous path; producing flow oscillation in at least a portion of said circuitous path by passing the flow in said circuitous path through a fluid oscillator means forming a part of said circuitous path.
Claim 14
Independent Claim
86 words
A method for diluting a sample, said method comprising: introducing a first preselected volume of a sample material into a first portion of a circuitous path; introducing a second preselected volume of a diluent liquid into a second portion of said circuitous path; circulating said sample material and diluent liquid around said circuitous path; producing flow oscillation in at least a portion of said circuitous path by passing the flow in said circuitous path through a fluid oscillator means forming a part of said circuitous path.
Claim 15
Dependent Claim
25 words
A method in accordance with claim 12 additionally comprising continuing circulating said sample material and diluent liquid until a desired degree of dilution is achieved.
Claim 16
Dependent Claim
20 words
A method in accordance with claim 13 additionally comprising generating a signal representative of the frequency of said flow oscillation.
Claim 17
Dependent Claim
33 words
A method in accordance with claim 14 wherein introducing said second preselected volume of diluent liquid comprises introducing said diluent liquid into the portion of said circuitous path containing said fluid oscillator means.
Claim 18
Dependent Claim
32 words
A method in accordance with claim 12 wherein circulating said diluent liquid and sample material comprises continuously pumping the contents of said circuitous path in a preselected direction around said circuitous path.
Claim 19
Dependent Claim
15 words
A method in accordance with claim 16 wherein said sample material comprises a polymeric material.
Claim 20
Dependent Claim
15 words
A method in accordance with claim 16 wherein said sample material comprises a rubber material.
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) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |