US4236895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytical apparatus and method employing purified ozone
Assignee: Meloy Laboratories Inc
•
Filing: 1979-06-11
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Granted: 1980-12-02
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Expires: 1999-06-11
Abstract
Abstract Ozone generated for chemiluminescent reaction in an analyzer for the measurement of oxides of nitrogen, for example, is purified by passing the ozone through a bed of silica gel, thereby removing substances that interfere with the analysis.
Inventors
- 👤 Quade R. Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:05
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0027; G01N33/0036; G01N33/0037; G01N21/00; G01N21/75; G01N21/76; G01N21/766; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/177692
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
46 words
In analytical apparatus having an ozone generator and a reactor chamber in which generated ozone is employed in a chemiluminescent reaction, purifier means connected between the output of the ozone generator and the ozone input to the reactor chamber for removing impurities from the generated ozone.
Claim 2
Dependent Claim
46 words
In analytical apparatus having an ozone generator and a reactor chamber in which generated ozone is employed in a chemiluminescent reaction, purifier means connected between the output of the ozone generator and the ozone input to the reactor chamber for removing impurities from the generated ozone.
Claim 3
Dependent Claim
13 words
Apparatus in accordance with claim 1, wherein the purifier means comprises silica gel.
Claim 4
Dependent Claim
29 words
Apparatus in accordance with claim 2, wherein the silica gel is in the form of a bed of particles through which the output of the ozone generator is passed.
Claim 5
Dependent Claim
21 words
Apparatus in accordance with claim 1, wherein the ozone generator is of the type employing an electric discharge to produce ozone.
Claim 6
Dependent Claim
33 words
Apparatus in accordance with claim 1, wherein the analytical apparatus is employed to measure oxides of nitrogen and has means for providing nitric oxide for reaction with the ozone in the reactor chamber.
Claim 7
Dependent Claim
46 words
In an analytical method in which ozone is generated in an ozone generator and in which the generated ozone reacts in a reactor chamber to produce chemiluminescence, the improvement comprising purifying the output of the ozone generator, and supplying the purified ozone to the reactor chamber.
Claim 8
Dependent Claim
46 words
In an analytical method in which ozone is generated in an ozone generator and in which the generated ozone reacts in a reactor chamber to produce chemiluminescence, the improvement comprising purifying the output of the ozone generator, and supplying the purified ozone to the reactor chamber.
Claim 9
Dependent Claim
27 words
A method in accordance with claim 6, wherein the purifying is accomplished by passing the output of the ozone generator through a bed of silica gel particles.
Claim 10
Dependent Claim
16 words
A method in accordance with claim 7, wherein the ozone is generated by an electric discharge.
Claim 11
Dependent Claim
30 words
A method in accordance with claim 8, wherein the analytical method is employed to measure oxides of nitrogen, and nitric oxide is reacted with the ozone in the reactor chamber.
Claim 12
Independent Claim
30 words
A method of treating an output stream of an ozone generator, which comprises passing the output stream over silica gel to remove impurities from the ozone in the output stream.
Claim 13
Independent Claim
30 words
A method of treating an output stream of an ozone generator, which comprises passing the output stream over silica gel to remove impurities from the ozone in the output stream.
Claim 14
Dependent Claim
22 words
A method in accordance with claim 10, wherein the ozone is generated by passing air through an electric discharge type ozone generator.
Claim 15
Dependent Claim
20 words
A method in accordance with claim 10, wherein the output stream is passed through a bed of particulate silica gel.
Claim 16
Dependent Claim
54 words
In an analytical method in which ozone is generated in an ozone generator and in which the generated ozone reacts in a reactor chamber to produce chemiluminescence, the improvement comprising increasing the accuracy of said analytical method by purifying the output of the ozone generator, and supplying the purified ozone to the reactor chamber.
Claim 17
Dependent Claim
54 words
In an analytical method in which ozone is generated in an ozone generator and in which the generated ozone reacts in a reactor chamber to produce chemiluminescence, the improvement comprising increasing the accuracy of said analytical method by purifying the output of the ozone generator, and supplying the purified ozone to the reactor chamber.
References Cited (Backward Citations)
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US994294A
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US2872397A
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US3579305A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |