US3552211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed phase sampling system
Assignee: Applied Automation Inc
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Filing: 1968-10-09
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Granted: 1971-01-05
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Expires: 1988-10-09
Abstract
Abstract A SAMPLE OF THE GAS INCLUDED IN CARBON BLACK SMOKE IS OBTAINED BY DRAWING THE GAS SAMPLE THROUGH A REVERSIBLEFLOW FILTER AND A FIRST AND SECOND COOLER. A COMPRESSOR, WHICH DRAWS THE GAS SAMPLE INTO THE APPARATUS, IS CONNECTED BETWEEN THE FIRST AND SECOND COOLERS AND HAS A CONDUIT ROUTED BACK TO THE FILTER. THUS, A PORTION OF THE SAMPLE GASES WITHDRAWN THROUGH THE FILTER, FIRST COOLER AND COMPRESSOR IS REINTRODUCABLE TO THE FILTER FOR CLEANING SOLIDS FROM THE FILTER.
Inventors
- 👤 Robert E Dollinger
- 👤 Robert H Kallenberger
- 👤 Arthur E Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:41
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |