US3079999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil well service tool assembly
Assignee: Otis Engineering Corp
•
Filing: 1957-05-10
•
Granted: 1963-03-05
•
Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 William G Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:26
CPC Classifications
E; E21; E21B; E21B29/00; E21B49/00; E21B49/02; E21B49/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A TOOL ASSEMBLY FOR PERFORMING AN OPERATION IN A WELL BORE COMPRISING: A TUBULAR BODY, PUMP MEANS IN SAID BODY INCLUDING A MOVABLE POWER INPUT PISTON IN SAID BODY AND OPERATIVELY CONNECTED WITH A HYDRAULIC PRESSURE SYSTEM WITHIN SAID BODY, A MOVABLE POWER OUTPUT PISTON PARTLY WITHIN SAID BODY BUT EXTENDING THEREFROM AND ALSO OPERATIVELY CONNECTED WITH SAID HYDRAULIC SYSTEM IN A MANNER TO RECEIVE A MECHANICAL ADVANTAGE FORCE IN FROM THE OPERATION OF SAID INPUT PISTON, A SIDE WELL PERFORATING BIT ON THE FREE END OF SAID OUTPUT PISTON, AND MEANS TO REVERSE THE DIRECTION OF THE APPLICATION OF MECHANICAL FORCE BY SAID HYDRAULIC PRESSURE SYSTEM TO SAID OUTPUT PISTON TO RETRACT SAID BIT AND OUTPUT PISTON.
Claim 2
Dependent Claim
118 words
A TOOL ASSEMBLY FOR PERFORMING AN OPERATION IN A WELL BORE COMPRISING: A TUBULAR BODY, PUMP MEANS IN SAID BODY INCLUDING A MOVABLE POWER INPUT PISTON IN SAID BODY AND OPERATIVELY CONNECTED WITH A HYDRAULIC PRESSURE SYSTEM WITHIN SAID BODY, A MOVABLE POWER OUTPUT PISTON PARTLY WITHIN SAID BODY BUT EXTENDING THEREFROM AND ALSO OPERATIVELY CONNECTED WITH SAID HYDRAULIC SYSTEM IN A MANNER TO RECEIVE A MECHANICAL ADVANTAGE FORCE IN FROM THE OPERATION OF SAID INPUT PISTON, A SIDE WELL PERFORATING BIT ON THE FREE END OF SAID OUTPUT PISTON, AND MEANS TO REVERSE THE DIRECTION OF THE APPLICATION OF MECHANICAL FORCE BY SAID HYDRAULIC PRESSURE SYSTEM TO SAID OUTPUT PISTON TO RETRACT SAID BIT AND OUTPUT PISTON.
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |