Patent NL165327C successfully refreshed from Google Patents.
US3751167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for continuous monitoring of dissolved organics
Assignee: Individual
•
Filing: 1971-02-23
•
Granted: 1973-08-07
•
Expires: 1991-02-23
Abstract
Abstract The amount of dissolved organic material in a solvent medium is measured by passing light radiation of 280 millimicron wavelength through the medium. The amino acid Tyrosine within the medium absorbs radiation of this wavelength. By measuring the absorbence of the radiation, the concentration of Tyrosine is determined and the amount of organic material can be calculated by the known proportional relationship of Tyrosine to total organic matter.
Inventors
- 👤 G Claus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:29
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/18; G01N33/1826; G01N33/1846; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/33; Y; Y02; Y02A; Y02A20/00; Y02A20/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
27 words
A method as in claim 1 further comprising the step of determining the pollutional level of the solvent medium from the value representing the dissolved organic material.
Claim 2
Dependent Claim
43 words
A method as in claim 1 wherein said converting comprises the steps of: relating the concentration of Tyrosine to the amount of total proteinaceous matter in said solvent medium; and calculating the amount of organic material from the amount of total proteinaceous matter.
Claim 3
Dependent Claim
33 words
A method as in claim 1 wherein said measuring includes the steps of detecting the transmittance of radiation through the solvent medium in said container and determining the absorbance from the detected transmittance.
Claim 4
Independent Claim
119 words
An apparatus for measuring the organic content of a solvent medium by using spectrophotometric techniques, said apparatus comprising, a transparent container, means for continuously passing a sample of the solvent medium through the container, a source of light radiation of approximately 280 millimicrons wavelength, means for positioning said source to pass the radiation through the sample of solvent medium in said container, means for measuring the amount of said radiation absorbed by the tyrosine present in said solvent medium, the amount of said absorbance being proportional to the concentration of tyrosine in the solvent medium, and means for converting the measured amount of said absorbance into a value representing the amount of dissolved organic material in the solvent medium.
Claim 5
Dependent Claim
14 words
An apparatus as in claim 5 wherein said container is composed of quartz material.
Claim 6
Dependent Claim
29 words
An apparatus as in claim 5 wherein said source consists of an ultraviolet light source and a narrow band light filter passing radiation only of approximately 280 millimicron wavelength.
Claim 7
Dependent Claim
40 words
An apparatus as in claim 5 wherein said means for continuously passing the solvent medium consists of tube means connecting the solvent medium with the container, a pump connected along said tube, and aquatic filter means connected along said tube.
Claim 8
Dependent Claim
47 words
An apparatus as in claim 5 wherein said means for detecting consists of a photosensitive device producing an output current proportional to the amount of transmittance of light radiation through the sample solvent medium, and electronic means for converting the current output to the amount of absorbence.
Claim 9
Dependent Claim
15 words
An apparatus as in claim 5 wherein said means for measuring includes a recording chart.
Claim 10
Dependent Claim
27 words
An apparatus as in claim 10 wherein said recording chart is calibrated to read in values of weight of organic material per unit volume of solvent medium.
Claim 11
Dependent Claim
22 words
An apparatus as in claim 10 wherein said recording chart is calibrated to read in level of pollution of the solvent medium.
Claim 12
Dependent Claim
24 words
An apparatus as in claim 5 further including means to return the sample solvent medium from the container to the solvent medium being measured.
Claim 13
Dependent Claim
13 words
An apparatus as in claim 5 wherein said solvent medium is natural water.
Claim 14
Dependent Claim
13 words
An apparatus as in claim 5 wherein said solvent medium is waste effluent.
Claim 15
Dependent Claim
18 words
An apparatus as in claim 5 further comprising means for discharging the sample solvent medium from the container.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |