Patent US3109491A successfully refreshed from Google Patents.
US3109491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for use in cementing well casing
Assignee: B&W Inc
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Filing: 1962-07-16
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Granted: 1963-11-05
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Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 James R Solum
- 👤 William C Hempel
- 👤 Jr Conrad R Solum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:16
CPC Classifications
E; E21; E21B; E21B37/00; E21B37/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN A DEVICE OF THE CLASS DESCRIBED FOR GENERATING TURBULENCE IN A MOBILE MIXTURE EXISTING IN THE ANNULAR SPACE BETWEEN A WELL PIPE AND A SURROUNDING WALL UPON RECIPROCATION OF THE WELL PIPE RELATIVE TO THE SURROUNDING WALL, SAID DEVICE ADAPTED TO BE MOUNTED ON THE OUTER SURFACE OF THE WELL PIPE, THE COMBINATION OF: A CARRIER SLEEVE, A PLURALITY OF SECURING DEVICES CIRCUMFERENTIALLY SPACED ON SAID CARRIER SLEEVE, A CONTINUOUS LENGTH OF MULTIPLE STRAND WIRE CABLE MOUNTED AT EACH SUCCESSIVE SECURING DEVICE AND EXTENDING GENERALLY OUTWARDLY FROM THE WELL PIPE FORMING ARCHED LOOPS, EVERY OTHER LOOP ALTERNATELY EXTENDING UPWARDLY AND DOWNWARDLY, A SECOND CONTINUOUS LENGTH OF MULTIPLE STRAND WIRE CABLE MOUNTED AT EACH OF THE SAME SAID SUCCESSIVE SECURING DEVICES AND EXTENDING GENERALLY OUTWARDLY FROM THE WELL PIPE FORMING ARCHED LOOPS, EVERY OTHER LOOP ALTERNATELY EXTENDING UPWARDLY AND DOWNWARDLY WITH EACH UPWARDLY EXTENDING LOOP OF ONE CONTINUOUS CABLE LENGTH BEING DIRECTLY ABOVE EACH DOWNWARDLY EXTENDING LOOP OF THE OTHER CONTINUOUS CABLE LENGTH.
Claim 2
Dependent Claim
163 words
IN A DEVICE OF THE CLASS DESCRIBED FOR GENERATING TURBULENCE IN A MOBILE MIXTURE EXISTING IN THE ANNULAR SPACE BETWEEN A WELL PIPE AND A SURROUNDING WALL UPON RECIPROCATION OF THE WELL PIPE RELATIVE TO THE SURROUNDING WALL, SAID DEVICE ADAPTED TO BE MOUNTED ON THE OUTER SURFACE OF THE WELL PIPE, THE COMBINATION OF: A CARRIER SLEEVE, A PLURALITY OF SECURING DEVICES CIRCUMFERENTIALLY SPACED ON SAID CARRIER SLEEVE, A CONTINUOUS LENGTH OF MULTIPLE STRAND WIRE CABLE MOUNTED AT EACH SUCCESSIVE SECURING DEVICE AND EXTENDING GENERALLY OUTWARDLY FROM THE WELL PIPE FORMING ARCHED LOOPS, EVERY OTHER LOOP ALTERNATELY EXTENDING UPWARDLY AND DOWNWARDLY, A SECOND CONTINUOUS LENGTH OF MULTIPLE STRAND WIRE CABLE MOUNTED AT EACH OF THE SAME SAID SUCCESSIVE SECURING DEVICES AND EXTENDING GENERALLY OUTWARDLY FROM THE WELL PIPE FORMING ARCHED LOOPS, EVERY OTHER LOOP ALTERNATELY EXTENDING UPWARDLY AND DOWNWARDLY WITH EACH UPWARDLY EXTENDING LOOP OF ONE CONTINUOUS CABLE LENGTH BEING DIRECTLY ABOVE EACH DOWNWARDLY EXTENDING LOOP OF THE OTHER CONTINUOUS CABLE LENGTH.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |