US3087547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tools for securing flow conductors in a tubular member
Assignee: Otis Engineering Corp
•
Filing: 1958-10-29
•
Granted: 1963-04-30
•
Expires: 1978-10-29
Abstract
No abstract record available.
Inventors
- 👤 George M Raulins
- 👤 Dick M Koons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:01
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
237 words
A WELL TOOL FOR USE WITH A TUBULAR MEMBER HAVING A PLURALITY OF LONGITUDINALLY SPACED LATERAL PORTS AND AN UPWARDLY FACING STOP MEANS INCLUDING: A TUBULAR MANDREL HAVING A DOWNWARDLY FACING SHOULDER FOR ENGAGING SAID STOP MEANS FOR LIMITING DOWNWARD MOVEMENT OF THE MANDREL IN SAID TUBULAR MEMBER, SAID MANDREL HAVING AT LEAST ONE LATERAL PORT WHICH IS PLACED IN COMMUNICATION WITH ONE OF SAID LATERAL PORTS OF SAID TUBULAR MEMBER WITH SAID MANDREL IS POSITIONED IN SAID TUBULAR MEMBER WITH SAID SHOULDER ENGAGING SAID STOP MEANS, SAID MANDREL HAVING SEAL MEANS DISPOSED ON OPPOSITE SIDES OF SAID ONE LATERAL PORT OF SAID MANDREL AND SAID ONE OF SAID LATERAL PORTS OF SAID TUBULAR MEMBER WHEN SAID MANDREL IS POSITIONED IN SAID TUBULAR MEMBER WITH SAID SHOULDER ENGAGING SAID STOP MEANS FOR SEALING BETWEEN SAID MANDREL AND SAID TUBULAR MEMBER, SAID MANDREL HAVING SEAL RECESSES IN WHICH SAID SEAL MEANS ARE DISPOSED ABOVE AND BELOW SAID ONE LATERAL PORT AND A FLOW PASSAGE COMMUNICATING WITH THE INTERIOR OF THE MANDREL AND SAID SEAL RECESSES WHEREBY FLUID UNDER PRESSURE MAY BE TRANSMITTED TO SAID SEAL RECESSES TO CAUSE THE SEAL MEANS TO BE COMPRESSED AGAINST SAID TUBULAR MEMBER, SAID VALVE MEANS COMPRISING A VALVE SLEEVE LONGITUDINALLY MOVABLE IN SAID MANDREL AND MOVABLE BETWEEN AN OPEN POSITION WHEREIN FLUID MAY BE INJECTED INTO SAID PASSAGE AND A CLOSED POSITION WHEREIN FLOW OF FLUID FROM SAID VALVE PASSAGE IS PREVENTED.
Claim 2
Dependent Claim
237 words
A WELL TOOL FOR USE WITH A TUBULAR MEMBER HAVING A PLURALITY OF LONGITUDINALLY SPACED LATERAL PORTS AND AN UPWARDLY FACING STOP MEANS INCLUDING: A TUBULAR MANDREL HAVING A DOWNWARDLY FACING SHOULDER FOR ENGAGING SAID STOP MEANS FOR LIMITING DOWNWARD MOVEMENT OF THE MANDREL IN SAID TUBULAR MEMBER, SAID MANDREL HAVING AT LEAST ONE LATERAL PORT WHICH IS PLACED IN COMMUNICATION WITH ONE OF SAID LATERAL PORTS OF SAID TUBULAR MEMBER WITH SAID MANDREL IS POSITIONED IN SAID TUBULAR MEMBER WITH SAID SHOULDER ENGAGING SAID STOP MEANS, SAID MANDREL HAVING SEAL MEANS DISPOSED ON OPPOSITE SIDES OF SAID ONE LATERAL PORT OF SAID MANDREL AND SAID ONE OF SAID LATERAL PORTS OF SAID TUBULAR MEMBER WHEN SAID MANDREL IS POSITIONED IN SAID TUBULAR MEMBER WITH SAID SHOULDER ENGAGING SAID STOP MEANS FOR SEALING BETWEEN SAID MANDREL AND SAID TUBULAR MEMBER, SAID MANDREL HAVING SEAL RECESSES IN WHICH SAID SEAL MEANS ARE DISPOSED ABOVE AND BELOW SAID ONE LATERAL PORT AND A FLOW PASSAGE COMMUNICATING WITH THE INTERIOR OF THE MANDREL AND SAID SEAL RECESSES WHEREBY FLUID UNDER PRESSURE MAY BE TRANSMITTED TO SAID SEAL RECESSES TO CAUSE THE SEAL MEANS TO BE COMPRESSED AGAINST SAID TUBULAR MEMBER, SAID VALVE MEANS COMPRISING A VALVE SLEEVE LONGITUDINALLY MOVABLE IN SAID MANDREL AND MOVABLE BETWEEN AN OPEN POSITION WHEREIN FLUID MAY BE INJECTED INTO SAID PASSAGE AND A CLOSED POSITION WHEREIN FLOW OF FLUID FROM SAID VALVE PASSAGE IS PREVENTED.
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |