US3200895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jar mechanism
Assignee: DRILLING JARS Inc
•
Filing: 1963-11-06
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Granted: 1965-08-17
•
Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert M Womack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A WELL JAR, INNER AND OUTER CONCENTRICALLY ARRANGED TUBULAR PARTS ROTATABLY AND LONGITUDINALLY MOVABLE RELATIVE TO EACH OTHER, MEANS ON THE PARTS FORMING IMPACT FACES POSITIONED FOR ENGAGEMENT TO DELIVER AN IMPACT FROM ONE TO THE OTHER OF THE PARTS WHEN THE PARTS REACH THE LIMIT OF THEIR RELATIVE LONGITUDINAL MOVEMENT IN EITHER DIRECTION, INTERENGAGEABLE MEANS ON THE PARTS POSITIONED FOR INTERENGAGEMENT UPON RELATIVE ROTATION OF THE PARTS IN ONE DIRECTION WHEN THE PARTS ARE AT THE LIMIT OF THEIR RELATIVE LONGITUDINAL MOVEMENT IN EITHER DIRECTION TO HOLD THE PARTS AGAINST RELATIVE LONGITUDINAL MOVEMENT AND TO BE DISENGAGED UPON RELATIVE ROTATION OF THE PARTS IN THE OTHER DIRECTION TO ALLOW SUCH RELATIVE LONGITUDINAL MOVEMENT, AND MEANS ON THE PARTS POSITIONED FOR COACTION TO PREVENT INTERENGAGEMENT OF SAID INTERENGAGEABLE MEANS WHEN THE PARTS ARE IN POSITIONS BETWEEN THE LIMITS OF THEIR RELATIVE LONGITUDINAL MOVEMENT.
Claim 2
Dependent Claim
144 words
IN A WELL JAR, INNER AND OUTER CONCENTRICALLY ARRANGED TUBULAR PARTS ROTATABLY AND LONGITUDINALLY MOVABLE RELATIVE TO EACH OTHER, MEANS ON THE PARTS FORMING IMPACT FACES POSITIONED FOR ENGAGEMENT TO DELIVER AN IMPACT FROM ONE TO THE OTHER OF THE PARTS WHEN THE PARTS REACH THE LIMIT OF THEIR RELATIVE LONGITUDINAL MOVEMENT IN EITHER DIRECTION, INTERENGAGEABLE MEANS ON THE PARTS POSITIONED FOR INTERENGAGEMENT UPON RELATIVE ROTATION OF THE PARTS IN ONE DIRECTION WHEN THE PARTS ARE AT THE LIMIT OF THEIR RELATIVE LONGITUDINAL MOVEMENT IN EITHER DIRECTION TO HOLD THE PARTS AGAINST RELATIVE LONGITUDINAL MOVEMENT AND TO BE DISENGAGED UPON RELATIVE ROTATION OF THE PARTS IN THE OTHER DIRECTION TO ALLOW SUCH RELATIVE LONGITUDINAL MOVEMENT, AND MEANS ON THE PARTS POSITIONED FOR COACTION TO PREVENT INTERENGAGEMENT OF SAID INTERENGAGEABLE MEANS WHEN THE PARTS ARE IN POSITIONS BETWEEN THE LIMITS OF THEIR RELATIVE LONGITUDINAL MOVEMENT.
References Cited (Backward Citations)
US1618759A
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US2891772A
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |