Patent US2824861A successfully refreshed from Google Patents.
US3091179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well pumping operation control system
Assignee: Individual
•
Filing: 1961-03-15
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Granted: 1963-05-28
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Echols Wilford Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:28
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/008; E21B47/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SYSTEM FOR CONTROLLING THE OPERATION OF A WELL PUMPING INSTALLATION INCLUDING A PUMP, A MOTOR FOR OPERATING SAID PUMP AND A PUMPED FLUID DELIVERY CONDUIT, SAID SYSTEM COMPRISING NORMAL OPERATION EFFECTING MEANS OPERATIVELY CONNECTED TO SAID MOTOR AND BEING RESPONSIVE TO PREDETERMINED FLOW OF PUMPED FLUID THROUGH SAID DELIVERY CONDUIT FOR MAINTAINING SAID MOTOR IN OPERATION; CUT-OFF MEANS INCLUDING AN ELEMENT MOVABLY MOUNTED IN SAID FLUID DELIVERY CONDUIT IN CONTACT WITH FLUID FLOWING THERETHROUGH AND BEING IMMEDIATELY MOVABLE IN RESPONSE TO DISCONTINUANCE OF SAID PREDETERMINED FLOW, AND A CUT-OFF DEVICE POSITIVELY MECHANICALLY CONNECTED TO SAID ELEMENT AND BEING MOVABLE SIMULTANEOUSLY THEREWITH IMMEDIATELY IN RESPONSE TO DISCONTINUANCE OF SAID PREDETERMINED FLOW FOR OVERRIDING SAID NORMAL OPERATION EFFECTING MEANS AND STOPPING SAID MOTOR IMMEDIATELY; AND MEANS CONNECTED TO SAID MOTOR FOR AUTOMATICALLY RE-STARTING SAID MOTOR AT THE END OF A DEFINITE PREDETERMINED PERIOD OF TIME FOLLOWING STOPPING OF SAID MOTOR BY SAID CUT-OFF MEANS.
Claim 2
Independent Claim
153 words
A SYSTEM FOR CONTROLLING THE OPERATION OF A WELL PUMPING INSTALLATION INCLUDING A PUMP, A MOTOR FOR OPERATING SAID PUMP AND A PUMPED FLUID DELIVERY CONDUIT, SAID SYSTEM COMPRISING NORMAL OPERATION EFFECTING MEANS OPERATIVELY CONNECTED TO SAID MOTOR AND BEING RESPONSIVE TO PREDETERMINED FLOW OF PUMPED FLUID THROUGH SAID DELIVERY CONDUIT FOR MAINTAINING SAID MOTOR IN OPERATION; CUT-OFF MEANS INCLUDING AN ELEMENT MOVABLY MOUNTED IN SAID FLUID DELIVERY CONDUIT IN CONTACT WITH FLUID FLOWING THERETHROUGH AND BEING IMMEDIATELY MOVABLE IN RESPONSE TO DISCONTINUANCE OF SAID PREDETERMINED FLOW, AND A CUT-OFF DEVICE POSITIVELY MECHANICALLY CONNECTED TO SAID ELEMENT AND BEING MOVABLE SIMULTANEOUSLY THEREWITH IMMEDIATELY IN RESPONSE TO DISCONTINUANCE OF SAID PREDETERMINED FLOW FOR OVERRIDING SAID NORMAL OPERATION EFFECTING MEANS AND STOPPING SAID MOTOR IMMEDIATELY; AND MEANS CONNECTED TO SAID MOTOR FOR AUTOMATICALLY RE-STARTING SAID MOTOR AT THE END OF A DEFINITE PREDETERMINED PERIOD OF TIME FOLLOWING STOPPING OF SAID MOTOR BY SAID CUT-OFF MEANS.
References Cited (Backward Citations)
US2316494A
Cited
US2326442A
Cited
US2468791A
Cited
US2456456A
Cited
US2628995A
Cited
US2707440A
Cited
US2812773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |