US3304783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for continuously sampling gas
Assignee: Inland Steel Co
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Filing: 1964-06-10
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Granted: 1967-02-21
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 John J Quigley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40; G01N1/4077; G01N1/02; G01N1/22; G01N1/2247; G01N2001/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A GAS SAMPLING APPARATUS FOR COLLECTING A REPRESENTATIVE GAS SAMPLE FROM AN ATMOSPHERE OF 1000-3000* F. FURNACE GAS HAVING A CONCENTRATION OF UP TO ABOUT 50% BY WEIGHT MOISTURE AND AN AVERAGE CONCENTRATION OF SOLID PARTICULATE MATTER OF ABOUT 25 GRAINS PER STANDARD CUBIC FOOT WHICH COMPRISES IN COMBINATION; A FLUID COOLED HEAT EXCHANGER WHICH IS ADAPTED TO REMOVE A MAJOR PROPORTION OF THE MOISTURE FROM SAID GAS SAMPLE WITH SAID HEAT EXCHANGER DISPOSED IN DIRECT COMMUNICATION WITH A GAS SAMPLING TUBE ADAPTED TO CONTINUOUSLY WITHDRAW SAID GAS SAMPLE FROM SAID ATMOSPHERE, A COARSE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 100 MICRONS AND ADDITIONAL MOISTURE FROM SAID GAS SAMPLE, A FINE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 75 MICRONS AND RESIDUAL MOISTURE, AND AN ULTRA FINE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 1 MICRON,
Claim 2
Dependent Claim
146 words
A GAS SAMPLING APPARATUS FOR COLLECTING A REPRESENTATIVE GAS SAMPLE FROM AN ATMOSPHERE OF 1000-3000* F. FURNACE GAS HAVING A CONCENTRATION OF UP TO ABOUT 50% BY WEIGHT MOISTURE AND AN AVERAGE CONCENTRATION OF SOLID PARTICULATE MATTER OF ABOUT 25 GRAINS PER STANDARD CUBIC FOOT WHICH COMPRISES IN COMBINATION; A FLUID COOLED HEAT EXCHANGER WHICH IS ADAPTED TO REMOVE A MAJOR PROPORTION OF THE MOISTURE FROM SAID GAS SAMPLE WITH SAID HEAT EXCHANGER DISPOSED IN DIRECT COMMUNICATION WITH A GAS SAMPLING TUBE ADAPTED TO CONTINUOUSLY WITHDRAW SAID GAS SAMPLE FROM SAID ATMOSPHERE, A COARSE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 100 MICRONS AND ADDITIONAL MOISTURE FROM SAID GAS SAMPLE, A FINE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 75 MICRONS AND RESIDUAL MOISTURE, AND AN ULTRA FINE MECHANICAL FILTER ADAPTED TO REMOVE SUSPENDED PARTICLES LARGER THAN ABOUT 1 MICRON,
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |