US3359791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System responsive to well pumping loads
Assignee: WELL SENTRY Inc
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Filing: 1964-10-19
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Granted: 1967-12-26
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Rodney A Pantages
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:29
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; E; E21; E21B; E21B47/00; E21B47/008; E21B47/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SYSTEM RESPONSIVE TO THE PERFORMANCE OF A PUMPING WELL COMPRISING: LOAD-MEASURING MEANS CONNECTED TO A WELL PUMP ROD SO AS TO BE CONTINUOUSLY RESPONSIVE TO THE LOAD THEREON; INSTRUMENT MEANS REMOTE FROM AND CONNECTED TO SAID LOAD-MEASURING MEANS; CONTROL MEANS FOR THE WELL PUMPING OPERATION; MEANS ON SAID INSTRUMENT MEANS RESPONSIVE TO THE ATTAINMENT OF EITHER A PREDETERMINED HIGH LOAD VALUE OR A PREDETERMINED LOW LOAD VALUE FOR ACTIVATING THE CONTROL MEANS TO DISCONTINUE THE WELL PUMPING OPERATION; AND ADDITIONAL MEANS ON SAID INSTRUMENT RESPONSIVE TO FAILURE OF THE PUMP ROD LOAD TO REACH A PREDETERMINED INTERMEDIATE VALUE OVER A PROLONGED INTERVAL FOR ACTIVATING A SIGNAL MEANS TO INDICATE ABNORMAL PERFORMANCE OF THE WELL BUT WITHOUT TERMINATING THE PUMPING OPERATION.
Claim 2
Independent Claim
121 words
A SYSTEM RESPONSIVE TO THE PERFORMANCE OF A PUMPING WELL COMPRISING: LOAD-MEASURING MEANS CONNECTED TO A WELL PUMP ROD SO AS TO BE CONTINUOUSLY RESPONSIVE TO THE LOAD THEREON; INSTRUMENT MEANS REMOTE FROM AND CONNECTED TO SAID LOAD-MEASURING MEANS; CONTROL MEANS FOR THE WELL PUMPING OPERATION; MEANS ON SAID INSTRUMENT MEANS RESPONSIVE TO THE ATTAINMENT OF EITHER A PREDETERMINED HIGH LOAD VALUE OR A PREDETERMINED LOW LOAD VALUE FOR ACTIVATING THE CONTROL MEANS TO DISCONTINUE THE WELL PUMPING OPERATION; AND ADDITIONAL MEANS ON SAID INSTRUMENT RESPONSIVE TO FAILURE OF THE PUMP ROD LOAD TO REACH A PREDETERMINED INTERMEDIATE VALUE OVER A PROLONGED INTERVAL FOR ACTIVATING A SIGNAL MEANS TO INDICATE ABNORMAL PERFORMANCE OF THE WELL BUT WITHOUT TERMINATING THE PUMPING OPERATION.
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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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |