US3288000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting and positioning mechanism for power tongs
Assignee: Individual
•
Filing: 1965-01-28
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Granted: 1966-11-29
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Foster James Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN APPARATUS FOR CONNECTING AND DISCONNECTING THREADED JOINTS IN A WELL PIPE STRING, THE COMBINATION WITH A POWER TONG ADAPTED TO BE GRIPPINGLY ENGAGED WITH A WELL PIPE TO ROTATE THE SAME, OF SUPPORTING AND POSITIONING MECHANISM FOR THE TONGE COMPRISING INNER AND OUTER TELESCOPINGLY ARRANGED TRACKWAYS, MEANS FOR SUPPORTING THE TRACKWAYS IN AN UPRIGHT POSITION FOR LONGITUDINAL MOVEMENT RELATIVE TO EACH OTHER ADJACENT A WELL BORE, MEANS FOR MOVABLY SUPPORTING THE TONG ON THE UPPER END OF ONE OF THE TRACKWAYS FOR HORIZONTAL ROTATIONAL MOVEMENT INTO AND OUT OF A POSITION EXTENDING OVER THE BORE FOR ENGAGEMENT WITH THE PIPE, AND MEANS POSITIONED FOR COACTION WITH THE TRACKWAYS TO IMPART RELATIVE LONGITUDINAL MOVEMENT TO AND HOLD THE TRACKWAYS IN A SELECTED POSITION OF LONGITUDINAL ADJUSTMENT RELATIVE TO EACH OTHER.
Claim 2
Dependent Claim
130 words
IN APPARATUS FOR CONNECTING AND DISCONNECTING THREADED JOINTS IN A WELL PIPE STRING, THE COMBINATION WITH A POWER TONG ADAPTED TO BE GRIPPINGLY ENGAGED WITH A WELL PIPE TO ROTATE THE SAME, OF SUPPORTING AND POSITIONING MECHANISM FOR THE TONGE COMPRISING INNER AND OUTER TELESCOPINGLY ARRANGED TRACKWAYS, MEANS FOR SUPPORTING THE TRACKWAYS IN AN UPRIGHT POSITION FOR LONGITUDINAL MOVEMENT RELATIVE TO EACH OTHER ADJACENT A WELL BORE, MEANS FOR MOVABLY SUPPORTING THE TONG ON THE UPPER END OF ONE OF THE TRACKWAYS FOR HORIZONTAL ROTATIONAL MOVEMENT INTO AND OUT OF A POSITION EXTENDING OVER THE BORE FOR ENGAGEMENT WITH THE PIPE, AND MEANS POSITIONED FOR COACTION WITH THE TRACKWAYS TO IMPART RELATIVE LONGITUDINAL MOVEMENT TO AND HOLD THE TRACKWAYS IN A SELECTED POSITION OF LONGITUDINAL ADJUSTMENT RELATIVE TO EACH OTHER.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |