US3340938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-automated drilling rig
Assignee: Wilson Manufacturing Co
•
Filing: 1964-12-22
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Granted: 1967-09-12
•
Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Wilson John Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:14
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/023; E21B15/00; E21B15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A DRILLING RIG, INCLUDING A PRIME MOVER, FOR DRILLING HOLES IN THE EARTH FORMATION, WHICH DRILLING RIG IS MOUNTED ON A SUPPORTING FRAME, WHICH DRILLING RIG COMPRISES: (A) A HOISTING DRUM FOR WINDING CABLE THEREON, WHICH HOISTING DRUM IS MOUNTED ON SAID SUPPORTING FRAME AND IS CONNECTED IN POWER DRIVEN RELATION WITH THE PRIME MOVER, (B) AN ELONGATED MAST PIVOTALLY MOUNTED ON SAID SUPPORTING FRAME, WHICH HAS THE FRONT ONLY THEREOF OPEN, (1) SAID ELONGATED MAST BEING RECTANGULAR IN CROSSSECTION AND HAVING A LEG ON EACH CORNER THEREOF, (2) A CROWN BLOCK HAVING SHEAVES THEREON ON THE UPPER END OF SAID MAST, (C) AN ELONGATED FRAME MOUNTED WITHIN SAID MAST FOR LONGITUDINAL MOVEMENT THEREIN, WHICH FRAME IS IN GUIDED RELATION THEREIN, (1) A TRAVELING BLOCK HAVING SHEAVES MOUNTED THEREIN, (2) A SWIVEL FOR PASSING FLUID FROM A NON-ROTATABLE CONDUIT INTO A ROTATABLE CONDUIT, (3) A POWER DRIVEN PIPE ROTATING DEVICE, (4) A PIPE HANDLING DEVICE FOR PICKING UP PIPE WHICH IS ARRANGED SUBSTANTIALLY HORIZONTALLY AND MOVING SAID PIPE THROUGH AN ANGLE TO AN UPRIGHT POSITION, (5) SAID TRAVELING BLOCK, SAID SWIVEL, SAID PIPE ROTATING DEVICE, AND SAID PIPE HANDLING DEVICE BEING ASSOCIATED WITH SAID ELONGATED FRAME FOR INTEGRAL MOVEMENT THEREWITH WITHIN SAID ELONGATED MAST,
Claim 2
Dependent Claim
204 words
A DRILLING RIG, INCLUDING A PRIME MOVER, FOR DRILLING HOLES IN THE EARTH FORMATION, WHICH DRILLING RIG IS MOUNTED ON A SUPPORTING FRAME, WHICH DRILLING RIG COMPRISES: (A) A HOISTING DRUM FOR WINDING CABLE THEREON, WHICH HOISTING DRUM IS MOUNTED ON SAID SUPPORTING FRAME AND IS CONNECTED IN POWER DRIVEN RELATION WITH THE PRIME MOVER, (B) AN ELONGATED MAST PIVOTALLY MOUNTED ON SAID SUPPORTING FRAME, WHICH HAS THE FRONT ONLY THEREOF OPEN, (1) SAID ELONGATED MAST BEING RECTANGULAR IN CROSSSECTION AND HAVING A LEG ON EACH CORNER THEREOF, (2) A CROWN BLOCK HAVING SHEAVES THEREON ON THE UPPER END OF SAID MAST, (C) AN ELONGATED FRAME MOUNTED WITHIN SAID MAST FOR LONGITUDINAL MOVEMENT THEREIN, WHICH FRAME IS IN GUIDED RELATION THEREIN, (1) A TRAVELING BLOCK HAVING SHEAVES MOUNTED THEREIN, (2) A SWIVEL FOR PASSING FLUID FROM A NON-ROTATABLE CONDUIT INTO A ROTATABLE CONDUIT, (3) A POWER DRIVEN PIPE ROTATING DEVICE, (4) A PIPE HANDLING DEVICE FOR PICKING UP PIPE WHICH IS ARRANGED SUBSTANTIALLY HORIZONTALLY AND MOVING SAID PIPE THROUGH AN ANGLE TO AN UPRIGHT POSITION, (5) SAID TRAVELING BLOCK, SAID SWIVEL, SAID PIPE ROTATING DEVICE, AND SAID PIPE HANDLING DEVICE BEING ASSOCIATED WITH SAID ELONGATED FRAME FOR INTEGRAL MOVEMENT THEREWITH WITHIN SAID ELONGATED MAST,
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |