US3171630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well pump
Assignee: Dresser Industries Inc
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Filing: 1963-03-14
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Granted: 1965-03-02
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Doran B Harney
- 👤 Jacob W Harris
- 👤 Richard C Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:43
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/129; F04D13/06; F04D13/08; F04D13/10; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A TURBO-DRIVE FOR INSTALLATION IN WELLS, APPARATUS COMPRISING: A HOUSING ADAPTED TO BE LOWERED INTO A WELL; A TURBINE IN SAID HOUSING HAVING RUNNERS ADAPTED TO BE DRIVEN BY POWER FLUID SUPPLIED THERETO; INLET MEANS FOR INTRODUCING SUCH POWER FLUID INTO SAID HOUSING AND DRIVELY TO SAID RUNNERS; SHAFT MEANS UPON WHICH SAID RUNNERS ARE FIXED FOR SUPPORT AND ROTATION THEREWITH ABOUT A COMMON AXIS; AND MEANS FOR BALANCING AXIAL THRUST IN SAID SHAFT INCLUDING: A CYLINDER FIXED IN SAID HOUSING, PLUNGER MEANS FIXED TO SAID SHAFT AND ROTATABLE AND AXIALLY SLIDABLE IN SAID CYLINDER, THERE BEING CLEARANCE SPACE BETWEEN SAID CYLINDER AND PLUNGER MEANS SUCH AS TO PERMIT A RELATIVELY LOW VOLUME OF FLUID FLOW THERETHROUGH FROM ONE END TO THE OTHER END OF SAID CYLINDER WHEN A DIFFERENTIAL FLUID PRESSURE IS APPLIED ACROSS SAID PLUNGER IN SAID CYLINDER,
Claim 2
Dependent Claim
141 words
IN A TURBO-DRIVE FOR INSTALLATION IN WELLS, APPARATUS COMPRISING: A HOUSING ADAPTED TO BE LOWERED INTO A WELL; A TURBINE IN SAID HOUSING HAVING RUNNERS ADAPTED TO BE DRIVEN BY POWER FLUID SUPPLIED THERETO; INLET MEANS FOR INTRODUCING SUCH POWER FLUID INTO SAID HOUSING AND DRIVELY TO SAID RUNNERS; SHAFT MEANS UPON WHICH SAID RUNNERS ARE FIXED FOR SUPPORT AND ROTATION THEREWITH ABOUT A COMMON AXIS; AND MEANS FOR BALANCING AXIAL THRUST IN SAID SHAFT INCLUDING: A CYLINDER FIXED IN SAID HOUSING, PLUNGER MEANS FIXED TO SAID SHAFT AND ROTATABLE AND AXIALLY SLIDABLE IN SAID CYLINDER, THERE BEING CLEARANCE SPACE BETWEEN SAID CYLINDER AND PLUNGER MEANS SUCH AS TO PERMIT A RELATIVELY LOW VOLUME OF FLUID FLOW THERETHROUGH FROM ONE END TO THE OTHER END OF SAID CYLINDER WHEN A DIFFERENTIAL FLUID PRESSURE IS APPLIED ACROSS SAID PLUNGER IN SAID CYLINDER,
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |