US3199596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Droppable tool for injecting fluids
Assignee: Texaco Inc
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Filing: 1962-09-20
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Granted: 1965-08-10
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 George M Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:13
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/124; E21B23/00; E21B23/02; E21B27/00; E21B27/02; E21B49/00; E21B49/08; E21B49/081; E21B49/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A DROPPABLE TOOL FOR INJECTING FLUID IN DEEP WELLS WHEREIN TUBING IS EMPLOYED, COMPRISING IN COMBINATION AN ELONGATED TOOL BODY HAVING LANDING STOP MEANS ON THE EXTERIOR THEREOF FOR COOPERATIVE ENGAGEMENT WITH COMPLEMENTARY STOP MEANS IN SAID TUBING, CATCH MEANS FOR HOLDING SAID TOOL IN PLACE WHEN LANDED IN SAID TUBING, A CYLINDRICAL CHAMBER MEANS FOR CONTAINING SAID FLUID, A PISTON SLIDABLY MOVABLE IN SAID CHAMBER MEANS, A PISTON ROD ATTACHED TO SAID PISTON FOR MOVING SAID PISTON IN SAID CHAMBER MEANS, SAID PISTON ROD EXTENDING OUT THE TOP OF SAID TOOL BODY AND HAVING AN ENLARGEMENT AT THE EXTREMITY THEREOF FOR ENGAGEMENT BY AN OVERSHOT, PASSAGEWAY MEANS CONNECTED TO SAID CYLINDRICAL CHAMBER MEANS FOR DIRECTING THE DISPLACED FLUID TO A PREDETERMINED LOCATION RELATIVE TO SAID TOOL BODY, MEANS FOR CONFINING SAID DISPLACED FLUID TO A PREDETERMINED LONGITUDINAL LOCATION IN THE ANNULUS BETWEEN SAID TUBING AND SAID TOOL AND INCLUDING OPENINGS IN SAID TUBING FOR CAUSING INJECTION OF SAID FLUID INTO THE BORE HOLE AT SUCH LOCATION, FLUID BY-PASS
Claim 2
Dependent Claim
169 words
A DROPPABLE TOOL FOR INJECTING FLUID IN DEEP WELLS WHEREIN TUBING IS EMPLOYED, COMPRISING IN COMBINATION AN ELONGATED TOOL BODY HAVING LANDING STOP MEANS ON THE EXTERIOR THEREOF FOR COOPERATIVE ENGAGEMENT WITH COMPLEMENTARY STOP MEANS IN SAID TUBING, CATCH MEANS FOR HOLDING SAID TOOL IN PLACE WHEN LANDED IN SAID TUBING, A CYLINDRICAL CHAMBER MEANS FOR CONTAINING SAID FLUID, A PISTON SLIDABLY MOVABLE IN SAID CHAMBER MEANS, A PISTON ROD ATTACHED TO SAID PISTON FOR MOVING SAID PISTON IN SAID CHAMBER MEANS, SAID PISTON ROD EXTENDING OUT THE TOP OF SAID TOOL BODY AND HAVING AN ENLARGEMENT AT THE EXTREMITY THEREOF FOR ENGAGEMENT BY AN OVERSHOT, PASSAGEWAY MEANS CONNECTED TO SAID CYLINDRICAL CHAMBER MEANS FOR DIRECTING THE DISPLACED FLUID TO A PREDETERMINED LOCATION RELATIVE TO SAID TOOL BODY, MEANS FOR CONFINING SAID DISPLACED FLUID TO A PREDETERMINED LONGITUDINAL LOCATION IN THE ANNULUS BETWEEN SAID TUBING AND SAID TOOL AND INCLUDING OPENINGS IN SAID TUBING FOR CAUSING INJECTION OF SAID FLUID INTO THE BORE HOLE AT SUCH LOCATION, FLUID BY-PASS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |