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US3109491A Expired / Lapsed US ⏱️ 0.0 years remaining

Tool for use in cementing well casing

Assignee: B&W Inc
•
Filing: 1962-07-16
•
Granted: 1963-11-05
•
Expires: 1982-07-16
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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 04:01
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)

US2826253A Cited
US2881840A Cited
US3074483A Cited

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

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