US3195643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump anchors with slips and packer
Assignee: Harbison Fischer Manufacturing Co
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Filing: 1963-02-08
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Granted: 1965-07-20
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Expires: 1983-02-08
Abstract
No abstract record available.
Inventors
- 👤 Dixon T Harbison
- 👤 James A Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A PUMP ANCHOR FOR WELL PUMPS INCLUDING, AN ELONGATE MANDREL, FIRST SETTING MEANS ON THE MANDREL HAVING OUTWARDLY-FACING PIPE ENGAGING AND GRIPPING ELEMENTS CARRIED FOR OUTWARD MOVEMENT, SECOND SETTING MEANS ON THE MANDREL HAVING INWARDLY-FACING MANDREL ENGAGING AND GRIPPING ELEMENTS CARRIED FOR INWARD MOVEMENT, THE SECOND SETTING MEANS HAVING A WEDGE-SHAPED PORTION TELESCOPING THE FIRST SETTING MEANS FOR FORCING THE GRIPPING ELEMENTS THEREOF OUTWARDLY AND FORCING THE GRIPPING ELEMENTS OF THE SECOND SETTING MEANS INWARDLY, FRICTION SHOE MEANS CARRIED ON THE MANDREL AND CONNECTED TO ONE OF THE SETTING MEANS, THE FRICTION SHOE MEANS AND SAID FIRST AND SECOND SETTING MEANS FORMING A SETTING ASSEMBLY, LOCKING AND UNLOCKING MEANS CARRIED BY THE FRICTION SHOE MEANS AND THE MANDREL FOR LIMITING MOVEMENT OF THE FRICTION SHOE MEANS LONGITUDINALLY OF THE MANDREL, ANNULAR PACKING MEANS SURROUNDING THE MANDREL, AND MEANS ON THE MANDREL FOR FORCING THE PACKING MEANS AGAINST THE SETTING ASSEMBLY TO DISTORT THE PACKING MEANS INTO A PACKING POSITION, THE SECOND SETTING MEMBER HAVING SLOTS EXTENDING LONGITUDINALLY THROUGH ITS MANDREL GRIPPING ELEMENTS, THE SLOTS TERMINATING SHORT OF THE ENDS OF THE SECOND SETTING MEMBER.
Claim 2
Dependent Claim
184 words
A PUMP ANCHOR FOR WELL PUMPS INCLUDING, AN ELONGATE MANDREL, FIRST SETTING MEANS ON THE MANDREL HAVING OUTWARDLY-FACING PIPE ENGAGING AND GRIPPING ELEMENTS CARRIED FOR OUTWARD MOVEMENT, SECOND SETTING MEANS ON THE MANDREL HAVING INWARDLY-FACING MANDREL ENGAGING AND GRIPPING ELEMENTS CARRIED FOR INWARD MOVEMENT, THE SECOND SETTING MEANS HAVING A WEDGE-SHAPED PORTION TELESCOPING THE FIRST SETTING MEANS FOR FORCING THE GRIPPING ELEMENTS THEREOF OUTWARDLY AND FORCING THE GRIPPING ELEMENTS OF THE SECOND SETTING MEANS INWARDLY, FRICTION SHOE MEANS CARRIED ON THE MANDREL AND CONNECTED TO ONE OF THE SETTING MEANS, THE FRICTION SHOE MEANS AND SAID FIRST AND SECOND SETTING MEANS FORMING A SETTING ASSEMBLY, LOCKING AND UNLOCKING MEANS CARRIED BY THE FRICTION SHOE MEANS AND THE MANDREL FOR LIMITING MOVEMENT OF THE FRICTION SHOE MEANS LONGITUDINALLY OF THE MANDREL, ANNULAR PACKING MEANS SURROUNDING THE MANDREL, AND MEANS ON THE MANDREL FOR FORCING THE PACKING MEANS AGAINST THE SETTING ASSEMBLY TO DISTORT THE PACKING MEANS INTO A PACKING POSITION, THE SECOND SETTING MEMBER HAVING SLOTS EXTENDING LONGITUDINALLY THROUGH ITS MANDREL GRIPPING ELEMENTS, THE SLOTS TERMINATING SHORT OF THE ENDS OF THE SECOND SETTING MEMBER.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |