US3352359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for steam treating a deep well
Assignee: St Louis Janitor Supply Co
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Filing: 1965-06-10
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Granted: 1967-11-14
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Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Wayne N Sutliff
- 👤 Meryl W Sutliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:10
CPC Classifications
E; E21; E21B; E21B36/00; E21B36/003; E21B33/00; E21B33/10; E21B33/12; E21B33/127; Y; Y10; Y10S; Y10S277/00; Y10S277/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
AN APPARATUS FOR STEAM TREATING A DEEP WELL HAVING A CASING, WITH SAID WELL EXTENDING INTO AN OIL BEARING STRATUM BELOW SAID CASING, SAID APPARATUS COMPRISING: A PIPE ADAPTED TO BE EXTENDED DOWNWARDLY THROUGH SAID CASING TO CONDUCT STEAM UNDER HIGH TEMPERATURE AND PRESSURE TO THE PORTION OF SAID WELL BENEATH SAID CASING; AND A THERMO-RESPONSIVE PACKER MOUNTED ON A LOWER PORTION OF SAID PIPE AND POSITIONED WITHIN A LOWER PORTION OF SAID CASING WHEN SAID PIPE IS SO EXTEND DOWNWARDLY, SAID PACKER INCLUDING AN EXPANSIBLE THIN WALLED ANNULAR HOLLOW SEALED JACKET OF RELATIVELY SOFT METAL SURROUNDING AND SNUGLY FITTING SAID STEAM PIPE AND CLOSELY SPACED FROM SAID CASING, AND A BODY OF THERMO-RESPONSIVE MATERIAL SUBSTANTIALLY OCCUPYING THE SPACE WITHIN SAID JACKET HAVING A HIGH CO-EFFICIENT OF THERMO-EXPANSION, SAID PACKER RESPONDING TO BEING HEATED BY SUPER-HEATED STEAM DELIVERED DOWNWARDLY THROUGH SAID PIPE BY EXPANDING INTO TIGHT SEALING ENGAGEMENT WITH SAID CASING THEREBY PACKING OFF THE LOWER END OF THE SPACE WITHIN SAID CASING SURROUNDING SAID PIPE ABOVE SAID PACKER.
Claim 2
Independent Claim
169 words
AN APPARATUS FOR STEAM TREATING A DEEP WELL HAVING A CASING, WITH SAID WELL EXTENDING INTO AN OIL BEARING STRATUM BELOW SAID CASING, SAID APPARATUS COMPRISING: A PIPE ADAPTED TO BE EXTENDED DOWNWARDLY THROUGH SAID CASING TO CONDUCT STEAM UNDER HIGH TEMPERATURE AND PRESSURE TO THE PORTION OF SAID WELL BENEATH SAID CASING; AND A THERMO-RESPONSIVE PACKER MOUNTED ON A LOWER PORTION OF SAID PIPE AND POSITIONED WITHIN A LOWER PORTION OF SAID CASING WHEN SAID PIPE IS SO EXTEND DOWNWARDLY, SAID PACKER INCLUDING AN EXPANSIBLE THIN WALLED ANNULAR HOLLOW SEALED JACKET OF RELATIVELY SOFT METAL SURROUNDING AND SNUGLY FITTING SAID STEAM PIPE AND CLOSELY SPACED FROM SAID CASING, AND A BODY OF THERMO-RESPONSIVE MATERIAL SUBSTANTIALLY OCCUPYING THE SPACE WITHIN SAID JACKET HAVING A HIGH CO-EFFICIENT OF THERMO-EXPANSION, SAID PACKER RESPONDING TO BEING HEATED BY SUPER-HEATED STEAM DELIVERED DOWNWARDLY THROUGH SAID PIPE BY EXPANDING INTO TIGHT SEALING ENGAGEMENT WITH SAID CASING THEREBY PACKING OFF THE LOWER END OF THE SPACE WITHIN SAID CASING SURROUNDING SAID PIPE ABOVE SAID PACKER.
References Cited (Backward Citations)
US1413197A
Cited
GB566125A
Cited
US2942668A
Cited
US3053321A
Cited
US3221813A
Cited
US3280909A
Cited
US3272521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |