US3085628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable well tool
Assignee: Lynes Inc
•
Filing: 1959-02-18
•
Granted: 1963-04-16
•
Expires: 1979-02-18
Abstract
No abstract record available.
Inventors
- 👤 Billy C Malone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:03
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN AN INFLATABLE WELL TOOL INCLUDING AN INFLATABLE ELEMENT, ANNUAL HEADS CONNECTED TO EACH OF SAID ELEMENT, TUBULAR MEANS TO SUPPORT SAID INFLATABLE ELEMENT HEADS IN A WELL BORE, PASSAGE MEANS IN SAID TUBULAR MEANS AND AT LEAST ONE OF SAID HEADS TO CONDUCT FLUID PRESSURE TO EXPAND SAID ELEMENT, A CHECK VALVE CLOSING OFF FLOW FROM SAID PASSAGE TO PREVENT FLUID PRESSURE FROM ACTING ON SAID ELEMENT UNTIL THE PRESSURE FLUID OVERCOMES SAID CHECK VALVE, SAID CHECK VALVE INCLUDING AN ANNULAR RESILIENT MEMBER SURROUNDING SAID TUBULAR MEANS, A SUBSTANTIALLY CONTINOUS PROJECTION ON EACH SIDE OF SAID PASSAGE MEANS AT THE OUTLET END AND ENGAGING SAID ANNULAR MEMBER, AND A SUPPORT FOR MAINTAINING SAID RESILIENT MEMBER ENGAGED WITH SAID SURROUNDING OPENING PROJECTIONS WHEREBY PRESSURE FLUID MUST FIRST MOVE SAID RESILIENT MEMBER AWAY FROM SAID PROJECTIONS BEFORE IT CAN ACT TO EXPAND SAID ELEMENT.
Claim 2
Dependent Claim
143 words
IN AN INFLATABLE WELL TOOL INCLUDING AN INFLATABLE ELEMENT, ANNUAL HEADS CONNECTED TO EACH OF SAID ELEMENT, TUBULAR MEANS TO SUPPORT SAID INFLATABLE ELEMENT HEADS IN A WELL BORE, PASSAGE MEANS IN SAID TUBULAR MEANS AND AT LEAST ONE OF SAID HEADS TO CONDUCT FLUID PRESSURE TO EXPAND SAID ELEMENT, A CHECK VALVE CLOSING OFF FLOW FROM SAID PASSAGE TO PREVENT FLUID PRESSURE FROM ACTING ON SAID ELEMENT UNTIL THE PRESSURE FLUID OVERCOMES SAID CHECK VALVE, SAID CHECK VALVE INCLUDING AN ANNULAR RESILIENT MEMBER SURROUNDING SAID TUBULAR MEANS, A SUBSTANTIALLY CONTINOUS PROJECTION ON EACH SIDE OF SAID PASSAGE MEANS AT THE OUTLET END AND ENGAGING SAID ANNULAR MEMBER, AND A SUPPORT FOR MAINTAINING SAID RESILIENT MEMBER ENGAGED WITH SAID SURROUNDING OPENING PROJECTIONS WHEREBY PRESSURE FLUID MUST FIRST MOVE SAID RESILIENT MEMBER AWAY FROM SAID PROJECTIONS BEFORE IT CAN ACT TO EXPAND SAID ELEMENT.
References Cited (Backward Citations)
US2603293A
Cited
US642808A
Cited
US1601239A
Cited
US1828381A
Cited
US1850218A
Cited
US2109745A
Cited
US2196658A
Cited
US2257765A
Cited
US2228243A
Cited
US2643722A
Cited
US2804090A
Cited
US2778432A
Cited
US2982358A
Cited
US2880970A
Cited
US2942669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |