Patent US3247798A successfully refreshed from Google Patents.
US3247798A
Expired / Lapsed
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Method and means for operating a pumping oil well
Assignee: Cameron Solutions Inc
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Filing: 1962-05-16
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Granted: 1966-04-26
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence O Glasgow
- 👤 Charles A Purser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SYSTEM FOR OPERATING A PUMPING OIL WELL, INCLUDING, AN ENGINE, A DOWNHOLE PUMP FOR RAISING LIQUIDS TO THE SURFACE, A LINKAGE BETWEEN THE ENGINE AND PUMP, A VAPOR PUMP ACTUATED BY THE LINKAGE AND HAVING THE INPUT TO THE PUMP CONNECTED TO THE VAPOR SPACE OF THE WELL CASING, A VOLUME CHAMBER CONNECTED TO THE OUTPUT OF THE VAPOR PUMP, A CONNECTION FROM THE VOLUME CHAMBER TO THE ENGINE FUEL INTAKE, AND MEANS RESPONSIVE TO THE PRESSURE OF THE VOLUME CHAMBER TO POSITION THE VAPOR PUMP AND LINKAGE SO THE PUMP WILL NOT BE ACTUATED AS LONG AS THE PRESSURE OF THE VOLUME CHAMBER IS WITHIN A PREDETERMINED RANGE.
Claim 2
Independent Claim
110 words
A SYSTEM FOR OPERATING A PUMPING OIL WELL, INCLUDING, AN ENGINE, A DOWNHOLE PUMP FOR RAISING LIQUIDS TO THE SURFACE, A LINKAGE BETWEEN THE ENGINE AND PUMP, A VAPOR PUMP ACTUATED BY THE LINKAGE AND HAVING THE INPUT TO THE PUMP CONNECTED TO THE VAPOR SPACE OF THE WELL CASING, A VOLUME CHAMBER CONNECTED TO THE OUTPUT OF THE VAPOR PUMP, A CONNECTION FROM THE VOLUME CHAMBER TO THE ENGINE FUEL INTAKE, AND MEANS RESPONSIVE TO THE PRESSURE OF THE VOLUME CHAMBER TO POSITION THE VAPOR PUMP AND LINKAGE SO THE PUMP WILL NOT BE ACTUATED AS LONG AS THE PRESSURE OF THE VOLUME CHAMBER IS WITHIN A PREDETERMINED RANGE.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |