US3104718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for perforating pipe strings
Assignee: Union Oil Company of California
•
Filing: 1959-08-24
•
Granted: 1963-09-24
•
Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Hunter H Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:45
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/119
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ALIGNING TOOL FOR USE IN WELLS COMPRISING AN ELONGATED BODY ELEMENT HAVING AT LEAST TWO ROWS OF SAPCED HOLES, EACH OF SAID ROWS DISPOSED ON OPPOSITE SIDES THEREOF AND POSITIONED AT RIGHT ANGLES TO THE LONGITUDINAL AXIS THEREOF, SLEEVES CARRIED WITHIN SAID HOLES AND ADAPTED TO SLIDE THEREIN, MEANS FOR BIASING SAID SLEEVES RADIALLY OUTWARDLY, A BALL BEARING ROTATABLY MOUNTED AT THE OUTBOARD END OF EACH OF SAID SLEEVES AND EXTENDING BEYOND THE SAME, MEANS FOR RETAINING SAID BALL BEARINGS WITHIN SAID SLEEVES, AND MEANS BIASING SAID BALL BEARINGS RADIALLY OUTWARDLY.
Claim 2
Dependent Claim
92 words
AN ALIGNING TOOL FOR USE IN WELLS COMPRISING AN ELONGATED BODY ELEMENT HAVING AT LEAST TWO ROWS OF SAPCED HOLES, EACH OF SAID ROWS DISPOSED ON OPPOSITE SIDES THEREOF AND POSITIONED AT RIGHT ANGLES TO THE LONGITUDINAL AXIS THEREOF, SLEEVES CARRIED WITHIN SAID HOLES AND ADAPTED TO SLIDE THEREIN, MEANS FOR BIASING SAID SLEEVES RADIALLY OUTWARDLY, A BALL BEARING ROTATABLY MOUNTED AT THE OUTBOARD END OF EACH OF SAID SLEEVES AND EXTENDING BEYOND THE SAME, MEANS FOR RETAINING SAID BALL BEARINGS WITHIN SAID SLEEVES, AND MEANS BIASING SAID BALL BEARINGS RADIALLY OUTWARDLY.
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |