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US3318384A Expired / Lapsed US ⏱️ 0.0 years remaining

Pressure actuated packer and anchor assembly

Assignee: Individual
•
Filing: 1964-11-23
•
Granted: 1967-05-09
•
Expires: 1984-11-23
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Abstract

No abstract record available.

Inventors

  • 👤 Cicero C Brown

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 08:55
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 178 words
IN A WELL TOOL ADAPTED TO BE SET IN A WELL PIPE IN CLUDING, A TUBULAR SUPPORT COMPRISING AN UPPER MANDREL AND A LOWER MANDREL, A RELEASABLE CONNECTION BETWEEN SAID UPPER MANDREL AND SAID LOWER MANDREL PREVENTING LONGITUDINAL MOVEMENT BETWEEN SAID UPPER AND SAID LOWER MANDRELS, AN ANCHORING ASSEMBLY ENCIRCLING THE SUPPORT AND COMPRISING A HOUSING, AN UPPER EXPANDER, A LOWER EXPANDER SPACED THEREBELOW, AND GRIPPING MEMBERS SPACED ABOUT AND CO-ACTING WITH THE EXPANDERS, MOVEMENT OF THE EXPANDERS TOWARD EACH OTHER EXPANDING THE GRIPPING MEMBERS INTO PIPE-GRIPPING POSITION AND MOVEMENT OF THE EXPANDERS AWAY FROM EACH OTHER ALLOWING SAID GRIPPING MEMBERS TO RETRACT FROM PIPE-GRIPPING POSITION, AN ABUTMENT SECURED TO SAID TUBULAR SUPPORT, PRESSURE-ACTUATED MEANS ON SAID TUBULAR SUPPORT AND HAVING TWO PARTS MOVABLE LONGITUDINALLY RELATIVE TO EACH OTHER, ONE PART BEING ATTACHED TO SAID TUBULAR SUPPORT AND THE OTHER PART BEING ATTACHED TO ONE OF SAID EXPANDERS, SAID ONE PART ALSO BEING RELEASABLY ATTACHED TO THE ANCHORING ASSEMBLY HOUSING, SAID ANCHORING ASSEMBLY HOUSING BEING RELEASABLY ATTACHED TO SAID UPPER EXPANDER AND RELEASABLY ATTACHED TO SAID LOWER EXPANDER,
Claim 2
Dependent Claim 178 words
IN A WELL TOOL ADAPTED TO BE SET IN A WELL PIPE IN CLUDING, A TUBULAR SUPPORT COMPRISING AN UPPER MANDREL AND A LOWER MANDREL, A RELEASABLE CONNECTION BETWEEN SAID UPPER MANDREL AND SAID LOWER MANDREL PREVENTING LONGITUDINAL MOVEMENT BETWEEN SAID UPPER AND SAID LOWER MANDRELS, AN ANCHORING ASSEMBLY ENCIRCLING THE SUPPORT AND COMPRISING A HOUSING, AN UPPER EXPANDER, A LOWER EXPANDER SPACED THEREBELOW, AND GRIPPING MEMBERS SPACED ABOUT AND CO-ACTING WITH THE EXPANDERS, MOVEMENT OF THE EXPANDERS TOWARD EACH OTHER EXPANDING THE GRIPPING MEMBERS INTO PIPE-GRIPPING POSITION AND MOVEMENT OF THE EXPANDERS AWAY FROM EACH OTHER ALLOWING SAID GRIPPING MEMBERS TO RETRACT FROM PIPE-GRIPPING POSITION, AN ABUTMENT SECURED TO SAID TUBULAR SUPPORT, PRESSURE-ACTUATED MEANS ON SAID TUBULAR SUPPORT AND HAVING TWO PARTS MOVABLE LONGITUDINALLY RELATIVE TO EACH OTHER, ONE PART BEING ATTACHED TO SAID TUBULAR SUPPORT AND THE OTHER PART BEING ATTACHED TO ONE OF SAID EXPANDERS, SAID ONE PART ALSO BEING RELEASABLY ATTACHED TO THE ANCHORING ASSEMBLY HOUSING, SAID ANCHORING ASSEMBLY HOUSING BEING RELEASABLY ATTACHED TO SAID UPPER EXPANDER AND RELEASABLY ATTACHED TO SAID LOWER EXPANDER,

References Cited (Backward Citations)

US2714931A Cited
US3000443A Cited
US3011555A Cited
US3265132A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-05-08 1970-11-07 1971-05-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-05-08 1974-11-07 1975-05-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-05-08 1978-11-07 1979-05-09 $7700.00 Window Closed / Lapsed

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