Patent US2526225A successfully refreshed from Google Patents.
US3104671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pipeline treatment with contaminant-free fluid
Assignee: Harvest Queen Mill and Elevator Co
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Filing: 1960-05-16
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Granted: 1963-09-24
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas K Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:41
CPC Classifications
B; B05; B05C; B05C7/00; B05C7/06; B05C7/08; B05C9/00; B05C9/08; B05C9/12; F; F16; F16L; F16L55/00; F28; F28F; F28F19/00; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN APPARATUS FOR TREATING THE INTERNAL SURFACES OF A PIPELINE INCLUDING: ACCESS MEANS CONNECTABLE TO OPPOSITE ENDS OF THE PIPELINE FOR INTRODUCING PIPELINE TREATING MEANS INTO THE PIPELINE AND INDIVIDUALLY OPERABLE MEANS CONNECTABLE TO SAID ACCESS MEANS FOR INTRODUCING DRY AIR INTO OPPOSITE ENDS OF THE PIPELINE THROUGH SAID ACCESS MEANS AT DIFFERENT PRESSURES, SAID INDIVIDUALLY OPERABLE MEANS EACH INCLUDING A COMPRESSOR FOR COMPRESSING AIR; A HEAT EXCHANGER CONNECTED TO THE COMPRESSOR FOR COOLING THE COMPRESSED AIR, A CONDENSING MEANS CONNECTED TO THE HEAT EXCHANGER FOR CONDENSING MOISTURE FROM THE AIR COOLED BY THE HEAT EXCHANGER, AND MEANS CONNECTED TO SAID CONDENSING MEANS HAVING A HYGROSCOPIC AGENT FOR ABSORBING WATER VAPOR FROM THE AIR FLOWING FROM THE CONDENSOR MEANS.
Claim 2
Independent Claim
119 words
AN APPARATUS FOR TREATING THE INTERNAL SURFACES OF A PIPELINE INCLUDING: ACCESS MEANS CONNECTABLE TO OPPOSITE ENDS OF THE PIPELINE FOR INTRODUCING PIPELINE TREATING MEANS INTO THE PIPELINE AND INDIVIDUALLY OPERABLE MEANS CONNECTABLE TO SAID ACCESS MEANS FOR INTRODUCING DRY AIR INTO OPPOSITE ENDS OF THE PIPELINE THROUGH SAID ACCESS MEANS AT DIFFERENT PRESSURES, SAID INDIVIDUALLY OPERABLE MEANS EACH INCLUDING A COMPRESSOR FOR COMPRESSING AIR; A HEAT EXCHANGER CONNECTED TO THE COMPRESSOR FOR COOLING THE COMPRESSED AIR, A CONDENSING MEANS CONNECTED TO THE HEAT EXCHANGER FOR CONDENSING MOISTURE FROM THE AIR COOLED BY THE HEAT EXCHANGER, AND MEANS CONNECTED TO SAID CONDENSING MEANS HAVING A HYGROSCOPIC AGENT FOR ABSORBING WATER VAPOR FROM THE AIR FLOWING FROM THE CONDENSOR MEANS.
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |