Patent US3111990A successfully refreshed from Google Patents.
US3111990A
Expired / Lapsed
US
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Position selector device for wells
Assignee: Shell USA Inc
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Filing: 1960-11-07
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Granted: 1963-11-26
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 William J Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:20
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
APPARATUS FOR SELECTIVELY LIMITING THE DOWNWARD TRAVEL OF A WELL DEVICE THROUGH A PIPE STRING DEPENDING VERTICALLY WITHIN A WELL, SAID APPARATUS COMPRISING A VERTICAL PIPE STRING, A PLURALITY OF STOP MEANS FORMED WITHIN THE PIPE STRING AT AXIALLY SPACED LOCATIONS THEREALONG, A PUMPABLE WELL DEVICE INCLUDING A POSITION SELECTOR DEVICE OF A DIAMETER SUFFICIENT TO PASS THROUGH SAID PIPE STRING TO STOP SELECTIVELY AT ONE OF SAID STOP MEANS, LATCHING MEANS CARRIED BY SAID POSITION SELECTOR DEVICE AND ADAPTED TO ENGAGE ONE OF SAID STOP MEANS, AND LATCH ACTUATING MEANS CARRIED BY SAID POSITION SELECTOR DEVICE AND OPERATIVELY CONNECTED TO SAID LATCHING MEANS, SAID LATCH ACTUATING MEANS INCLUDING OUTWARDLY-EXTENDING FEELER ARM MEANS ACTUATABLE BY AND RESPONSIVE TO MOVEMENT PAST EACH OF SAID STOP MEANS.
Claim 2
Dependent Claim
125 words
APPARATUS FOR SELECTIVELY LIMITING THE DOWNWARD TRAVEL OF A WELL DEVICE THROUGH A PIPE STRING DEPENDING VERTICALLY WITHIN A WELL, SAID APPARATUS COMPRISING A VERTICAL PIPE STRING, A PLURALITY OF STOP MEANS FORMED WITHIN THE PIPE STRING AT AXIALLY SPACED LOCATIONS THEREALONG, A PUMPABLE WELL DEVICE INCLUDING A POSITION SELECTOR DEVICE OF A DIAMETER SUFFICIENT TO PASS THROUGH SAID PIPE STRING TO STOP SELECTIVELY AT ONE OF SAID STOP MEANS, LATCHING MEANS CARRIED BY SAID POSITION SELECTOR DEVICE AND ADAPTED TO ENGAGE ONE OF SAID STOP MEANS, AND LATCH ACTUATING MEANS CARRIED BY SAID POSITION SELECTOR DEVICE AND OPERATIVELY CONNECTED TO SAID LATCHING MEANS, SAID LATCH ACTUATING MEANS INCLUDING OUTWARDLY-EXTENDING FEELER ARM MEANS ACTUATABLE BY AND RESPONSIVE TO MOVEMENT PAST EACH OF SAID STOP MEANS.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |