US3741322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling rig with drill rod magazine
Assignee: Mhwirth GmbH
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Filing: 1971-07-29
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Granted: 1973-06-26
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Expires: 1991-07-29
Abstract
Abstract A drilling rig comprising a mast on which a drilling carriage with a power rotating head is adapted to slide, a drilling rod magazine which is disposed on the mast or on the frame of the drilling rig and which has a holder for a storage device provided with receptacles for the rod parts and movable relative to the holder, the power rotating head being adapted to be moved out of a position above the center of a bore hole into a position above the storage device of the magazine and vice versa.
Inventors
- 👤 J Wolters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:58
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/20; E21B19/14; E21B19/146
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
186 words
A drilling rig comprising a mast, a drilling carriage mounted for travel on the mast in the longitudinal direction thereof, the drilling carriage being provided with a power rotating head, a drilling rod magazine including a holder for a storage device provided with receptacles for drilling rods, means fixably connecting the holder to the mast laterally thereof, the storage device being movable relative to the holder such that each of the receptacles is adjustable by such movement in a predetermined rod transfer position provided in a fixed lateral distance from the mast, a cross-slide positioned on the drilling carriage and carrying the power rotating head, driving means for moving the cross-slide relative to the drilling carriage in a linear path between only two end positions of the cross-slide, whereby in one end position of the cross-slide, the axis of the power rotating head is in alignment with the center of a bore hole, and in the other end position of the cross-head, the axis of the power rotating head is in alignment with the rod transfer position of one of the receptacles of the storage device.
Claim 2
Dependent Claim
186 words
A drilling rig comprising a mast, a drilling carriage mounted for travel on the mast in the longitudinal direction thereof, the drilling carriage being provided with a power rotating head, a drilling rod magazine including a holder for a storage device provided with receptacles for drilling rods, means fixably connecting the holder to the mast laterally thereof, the storage device being movable relative to the holder such that each of the receptacles is adjustable by such movement in a predetermined rod transfer position provided in a fixed lateral distance from the mast, a cross-slide positioned on the drilling carriage and carrying the power rotating head, driving means for moving the cross-slide relative to the drilling carriage in a linear path between only two end positions of the cross-slide, whereby in one end position of the cross-slide, the axis of the power rotating head is in alignment with the center of a bore hole, and in the other end position of the cross-head, the axis of the power rotating head is in alignment with the rod transfer position of one of the receptacles of the storage device.
Claim 3
Dependent Claim
22 words
The drillIng rig according to claim 1, characterized in that the storage device of the magazine is rotatable relative to its holder.
Claim 4
Dependent Claim
23 words
The drilling rig according to claim 1, characterized in that the storage device of the magazine is adjustable rectilinearly relative to its holder.
Claim 5
Dependent Claim
60 words
The drilling rig according to claim 1 characterized in that the power rotating head is provided with a clamping device having gripping elements intended for gripping and holding fast a rod part and in which the clamping elements, which can be caused to act on the rod part, are operable independently of the rotation of a power rotating head spindle.
Claim 6
Dependent Claim
21 words
The drilling rig according to claim 4, characterized in that the clamping device is detachably connected to the power rotating head.
Claim 7
Dependent Claim
47 words
The drilling rig according to claim 4, characterized in that the clamping device has clamp jaws which can be adjusted in a radial direction by means of a clamp ring, which is axially slidable by the action of a pressure medium, with the aid of wedge surfaces.
Claim 8
Dependent Claim
16 words
The drilling rig according to claim 6, characterized in that the clamp ring is mounted rotatably.
Claim 9
Dependent Claim
45 words
The drilling rig according to claim 6, characterized in that the clamping device contains an annular piston which is axially stationary and secured against rotation and also an axially slidable cylinder part surrounding the annular piston and, together with the piston, define two cylinder spaces.
Claim 10
Dependent Claim
22 words
The drilling rig according to claim 8, characterized in that the cylinder part is provided with the mounting for the clamp ring.
Claim 11
Dependent Claim
39 words
The drilling rig according to claim 4, including a rod connector fastened or detachably connected to a spindle of the power rotating head, the rod connector being disposed in the interior of the clamping device above the clamp elements.
Claim 12
Dependent Claim
26 words
The drilling rig according to claim 10, characterized in that a bearing surface for a rod part to be received is provided inside the clamping device.
Claim 13
Dependent Claim
19 words
The drilling rig according to claim 11, characterized in that the bearing surface is provided on the rod connector.
Claim 14
Dependent Claim
24 words
The drilling rig according to claim 11, characterized in that the bearing surface has at least one seal or is formed by a seal.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |