Patent US3102495A successfully refreshed from Google Patents.
US3102495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casing pump
Assignee: Individual
•
Filing: 1960-05-02
•
Granted: 1963-09-03
•
Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 John S Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:53
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; F04B47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A WELL PUMP ADAPTED TO BE INSTALLED IN A WELL CASING ON A RECIPROCABLE PUMP OPERATING STRING COMPRISING: A PUMP BARREL; A VALVE BODY CONNECTED TO SAID BARREL; A VALVE SLEEVE SHIFTABLY DISPOSED IN SAID VALVE BODY FOR AXIAL MOVEMENT; A PACKING ELEMENT ON SAID VALVE BODY ENGAGEABLE WITH THE WELL CASING FOR EFFECTING A SEAL THEREWITH; A PUMP PLUNGER RECIPROCABLY DISPOSED IN SAID BARREL; A PUMP ROD CONNECTED TO SAID PLUNGER AND EXTENDING UPWARDLY TOWARD SAID VALVE BODY; MEANS FOR CONNECTING THE PUMP ROD TO SAID PUMP OPERATING STRING AND FOR SHIFTING SAID VALVE SLEEVE IN OPPOSITE DIRECTIONS UPON RECIPROCATION OF SAID PUMP OPERATING STRING; AND MEANS FOR HOLDING SAID PUMP BARREL STATIONARY IN SAID CASING DURING RECIPROCATION OF SAID PUMP OPERATING STRING; SAID VALVE BODY HAVING A PORT THEREIN DISPOSED SO AS TO BE CLOSED BY SAID SLEEVE WHEN SAID SLEEVE IS IN ONE POSITION AND OPEN WHEN SAID SLEEVE IS IN THE OTHER POSITION.
Claim 2
Dependent Claim
157 words
A WELL PUMP ADAPTED TO BE INSTALLED IN A WELL CASING ON A RECIPROCABLE PUMP OPERATING STRING COMPRISING: A PUMP BARREL; A VALVE BODY CONNECTED TO SAID BARREL; A VALVE SLEEVE SHIFTABLY DISPOSED IN SAID VALVE BODY FOR AXIAL MOVEMENT; A PACKING ELEMENT ON SAID VALVE BODY ENGAGEABLE WITH THE WELL CASING FOR EFFECTING A SEAL THEREWITH; A PUMP PLUNGER RECIPROCABLY DISPOSED IN SAID BARREL; A PUMP ROD CONNECTED TO SAID PLUNGER AND EXTENDING UPWARDLY TOWARD SAID VALVE BODY; MEANS FOR CONNECTING THE PUMP ROD TO SAID PUMP OPERATING STRING AND FOR SHIFTING SAID VALVE SLEEVE IN OPPOSITE DIRECTIONS UPON RECIPROCATION OF SAID PUMP OPERATING STRING; AND MEANS FOR HOLDING SAID PUMP BARREL STATIONARY IN SAID CASING DURING RECIPROCATION OF SAID PUMP OPERATING STRING; SAID VALVE BODY HAVING A PORT THEREIN DISPOSED SO AS TO BE CLOSED BY SAID SLEEVE WHEN SAID SLEEVE IS IN ONE POSITION AND OPEN WHEN SAID SLEEVE IS IN THE OTHER POSITION.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |