Patent US3072059A successfully refreshed from Google Patents.
US3072059A
Expired / Lapsed
US
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Oil well flow control valve
Assignee: LA VERNE STEINLE
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Filing: 1956-11-05
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Granted: 1963-01-08
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Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Paul S Heffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:46
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A SHUT DOWN CONTROL DEVICE FOR AN OIL WELL HAVING A PUMPING ASSEMBLY AND AN OIL FLOW LINE OPERATIVELY ASSOCIATED THEREWITH, A CONTROL MEANS FOR TERMINATING FLOW INDUCING PRESSURE IN THE OIL FLOW LINE WHEN OPERATIVE, A FLOW RESPONSIVE MEANS OPERATIVELY MOUNTED IN SAID FLOW LINE AND CONNECTED TO SAID CONTROL MEANS TO RENDER THE CONTROL MEANS OPERATIVE UPON PREDETERMINED REDUCTION IN FLOW OF OIL THROUGH SAID FLOW LINE, ADJUSTING MEANS OPERATIVELY CONNECTED TO SAID FLOW RESPONSIVE MEANS FOR APPLYING AN ADJUSTABLE RESISTANCE TO ACTION OF THE FLOW RESPONSIVE IN ACTUATING THE CONTROL MEANS TO DEACTIVATE THE PUMPING ASSEMBLY, CHAMBERS SEPARATELY ENCLOSING EACH OF SAID MEANS, A SHAFT EXTENDING INTO EACH OF SAID CHAMBERS FOR PIVOTAL MOVEMENT, EACH OF SAID MEANS BEING DIRECTLY CONNECTED TO SAID SHAFT, THE CHAMBER FOR SAID ADJUSTING MEANS BEING FLUID TIGHT.
Claim 2
Dependent Claim
136 words
A SHUT DOWN CONTROL DEVICE FOR AN OIL WELL HAVING A PUMPING ASSEMBLY AND AN OIL FLOW LINE OPERATIVELY ASSOCIATED THEREWITH, A CONTROL MEANS FOR TERMINATING FLOW INDUCING PRESSURE IN THE OIL FLOW LINE WHEN OPERATIVE, A FLOW RESPONSIVE MEANS OPERATIVELY MOUNTED IN SAID FLOW LINE AND CONNECTED TO SAID CONTROL MEANS TO RENDER THE CONTROL MEANS OPERATIVE UPON PREDETERMINED REDUCTION IN FLOW OF OIL THROUGH SAID FLOW LINE, ADJUSTING MEANS OPERATIVELY CONNECTED TO SAID FLOW RESPONSIVE MEANS FOR APPLYING AN ADJUSTABLE RESISTANCE TO ACTION OF THE FLOW RESPONSIVE IN ACTUATING THE CONTROL MEANS TO DEACTIVATE THE PUMPING ASSEMBLY, CHAMBERS SEPARATELY ENCLOSING EACH OF SAID MEANS, A SHAFT EXTENDING INTO EACH OF SAID CHAMBERS FOR PIVOTAL MOVEMENT, EACH OF SAID MEANS BEING DIRECTLY CONNECTED TO SAID SHAFT, THE CHAMBER FOR SAID ADJUSTING MEANS BEING FLUID TIGHT.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |