Patent US3215085A successfully refreshed from Google Patents.
US3215085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Standing valve assembly for downhole plunger pumps and attachment therefor
Assignee: Individual
•
Filing: 1963-09-09
•
Granted: 1965-11-02
•
Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Jack E Goostree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:00
CPC Classifications
F; F04; F04B; F04B7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE COMBINATION WITH A DOWNHOLE PUMP FOR OIL RECOVERY, INCLUDING A STATIONARY BALL VALVE ASSEMBLY, A PLUNGER CARRYING A BALL VALVE ASSEMBLY MOVABLE TOWARD AND AWAY FROM THE STATIONARY VALVE, AND MEANS FOR OSCILLATING SAID PLUNGER, OF AN ABUTMENT MEMBER HELD IN THE STATIONARY ASSEMBLY IN ALINEMENT WITH THE BALL VALVE IN THE PLUNGER AND HAVING ITS TOP SURFACE DISPOSED WITH RESPECT TO EACH DOWNSTROKE OF SAID PLUNGER TO ENGAGE AND UNSEAT THE LATTER BALL DURING EACH DOWNSTROKE OF THE PLUNGER WHEREBY TO ENTRAIN CONTAINED GAS IN THE STATIONARY ASSEMBLY IN OIL DESCENDING THROUGH THE PLUNGER PAST THE UNSEATED VALVE.
Claim 2
Dependent Claim
100 words
THE COMBINATION WITH A DOWNHOLE PUMP FOR OIL RECOVERY, INCLUDING A STATIONARY BALL VALVE ASSEMBLY, A PLUNGER CARRYING A BALL VALVE ASSEMBLY MOVABLE TOWARD AND AWAY FROM THE STATIONARY VALVE, AND MEANS FOR OSCILLATING SAID PLUNGER, OF AN ABUTMENT MEMBER HELD IN THE STATIONARY ASSEMBLY IN ALINEMENT WITH THE BALL VALVE IN THE PLUNGER AND HAVING ITS TOP SURFACE DISPOSED WITH RESPECT TO EACH DOWNSTROKE OF SAID PLUNGER TO ENGAGE AND UNSEAT THE LATTER BALL DURING EACH DOWNSTROKE OF THE PLUNGER WHEREBY TO ENTRAIN CONTAINED GAS IN THE STATIONARY ASSEMBLY IN OIL DESCENDING THROUGH THE PLUNGER PAST THE UNSEATED VALVE.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |