Patent US3269320A successfully refreshed from Google Patents.
US3269320A
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Pump control method and apparatus
Assignee: Chevron USA Inc
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Filing: 1964-06-16
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Granted: 1966-08-30
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Aubra E Tilley
- 👤 Oke A Fredriksson
- 👤 Troy J Pemberton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:01
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/10; E; E21; E21B; E21B43/00; E21B43/12; F04B47/00; G; G01; G01N; G01N1/00; G01N1/02; G01N1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
APPARATUS FOR CONTROLLING THE OPERATION OF AN OIL WELL PUMP COMPRISING MEANS FOR SENSING ABNORMAL VIBRATIONS OF THE PUMPING APPARATUS, MEANS FOR TRANSMITTING THE SENSED VIBRATIONS TO EQUIVALENT ELECTRICAL SIGNALS, DETECTOR MEANS FOR DETECTING SIGNALS ONLY ABOVE A PREDETERMINABLE MAGNITUDE, MULTIVIBRATOR MEANS FOR PRODUCING AN ELECTRICAL PULSE OF A PREDETERMINABLE DURATION IN RESPONSE TO EACH DETECTED SIGNAL, SAID PULSE BEING OF THE SAME DURATION FOR EACH DETECTED SIGNAL AND SWITCHING MEANS RESPONSIVE TO A PLURALITY OF THE ELECTRICAL PULSES FOR STOPPING THE OPERATION OF THE PUMPING APPARATUS.
Claim 2
Dependent Claim
87 words
APPARATUS FOR CONTROLLING THE OPERATION OF AN OIL WELL PUMP COMPRISING MEANS FOR SENSING ABNORMAL VIBRATIONS OF THE PUMPING APPARATUS, MEANS FOR TRANSMITTING THE SENSED VIBRATIONS TO EQUIVALENT ELECTRICAL SIGNALS, DETECTOR MEANS FOR DETECTING SIGNALS ONLY ABOVE A PREDETERMINABLE MAGNITUDE, MULTIVIBRATOR MEANS FOR PRODUCING AN ELECTRICAL PULSE OF A PREDETERMINABLE DURATION IN RESPONSE TO EACH DETECTED SIGNAL, SAID PULSE BEING OF THE SAME DURATION FOR EACH DETECTED SIGNAL AND SWITCHING MEANS RESPONSIVE TO A PLURALITY OF THE ELECTRICAL PULSES FOR STOPPING THE OPERATION OF THE PUMPING APPARATUS.
References Cited (Backward Citations)
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |