US4067398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring drilling rig
Assignee: Atlas Copco AB
•
Filing: 1976-05-25
•
Granted: 1978-01-10
•
Expires: 1996-05-25
Abstract
Abstract A ring drilling rig for rock drilling has a feed beam for a rock drill. The feed beam is mounted in a holder on the distal end of an arm that is mounted on a support. The support is tiltable about a transverse horizontal axis. The arm is swingable 360° about a longitudinal axis to which it is perpendicular. The feed beam and its holder are pivotable about an axis that is parallel with the axis about which the arm swings. The feed beam is axially displaceable in its holder.
Inventors
- 👤 Sven Mauritz Franzen
- 👤 Lars Magnus Gunnar Soderlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:04
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025; E21B19/00; E21B19/08; E21B19/081
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
176 words
A ring drilling rig comprising: a chassis (10), a support (15) swingably mounted on the chassis (10) at one end thereof so as to be tiltable about a first horizontal axis (I) that is transverse to the chassis, power means (16) coupled to said support (15) to tilt said support (15) relative to said chassis (10), an arm (21) swingably mounted to said support (15) so as to be swingable about a second axis (II) that is perpendicular to said first axis (I), power means (17) coupled to said arm (21) to swing said arm (21) about said second axis (II) through an arc of 360°, said arm (21) being always transverse to said second axis (II), and a feed beam (24) swingably mounted on the distal end of said arm (21) and being transverse to said second axis (II), said feed beam (24) being swingable on said arm (21) about a third axis (III) parallel with said second axis (II), said third axis (III) being coupled to said support (15) via said second axis (II).
Claim 2
Dependent Claim
176 words
A ring drilling rig comprising: a chassis (10), a support (15) swingably mounted on the chassis (10) at one end thereof so as to be tiltable about a first horizontal axis (I) that is transverse to the chassis, power means (16) coupled to said support (15) to tilt said support (15) relative to said chassis (10), an arm (21) swingably mounted to said support (15) so as to be swingable about a second axis (II) that is perpendicular to said first axis (I), power means (17) coupled to said arm (21) to swing said arm (21) about said second axis (II) through an arc of 360°, said arm (21) being always transverse to said second axis (II), and a feed beam (24) swingably mounted on the distal end of said arm (21) and being transverse to said second axis (II), said feed beam (24) being swingable on said arm (21) about a third axis (III) parallel with said second axis (II), said third axis (III) being coupled to said support (15) via said second axis (II).
Claim 3
Dependent Claim
41 words
A ring drilling rig according to claim 1 further comprising a holder (23) carrying said feed beam (24), said feed beam (24) being axially displaceably mounted in said holder (23) and said holder (23) being swingable about said third axis (III).
Claim 4
Dependent Claim
35 words
A ring drilling rig according to claim 2 comprising a hydraulic jack (31) coupled between said feed beam (24) and said holder (23) to effect said axial displacement of said feed beam in said holder.
Claim 5
Dependent Claim
35 words
A ring drilling rig according to claim 3 wherein said feed beam (24) and said hydraulic jack (31) are mountable in said holder (23) axially facing in one direction and alternatively in the other direction.
Claim 6
Dependent Claim
33 words
A ring drilling rig according to claim 1 wherein said feed beam (24) is swingable on said arm (21) into a position in which the axis of drilling intersects said second axis (II).
Claim 7
Dependent Claim
28 words
A ring drilling rig according to claim 1 wherein said arm (21) is swingable through said arc of 360° from a position in which it is substantially horizontal.
Claim 8
Dependent Claim
25 words
A ring drilling rig according to claim 1 wherein said feed beam (24) is swingable solely in a plane perpendicular to said second axis (II).
Claim 9
Dependent Claim
54 words
A ring drilling rig according to claim 1 comprising a shaft (20) rotatably mounted to said support (15), the longitudinal axis of said shaft (20) being parallel to and defining said second axis (II), and wherein said arm (21) is affixed to said shaft (20) so as to be normal to said shaft (20).
Claim 10
Dependent Claim
29 words
A ring drilling rig according to claim 8 comprising a hydraulically actuated rack-and-pinion device coupled to said shaft (20) for rotating said shaft (20) relative to said support (15).
Claim 11
Dependent Claim
28 words
A ring drilling rig according to claim 8 wherein said arm (21) is swingable through said arc of 360° from a position in which it is substantially horizontal.
Claim 12
Dependent Claim
25 words
A ring drilling rig according to claim 2 wherein said feed beam (24) is swingable solely in a plane perpendicular to said second axis (II).
Claim 13
Dependent Claim
32 words
A ring drilling rig according to claim 2 wherein said holder (23) is swingable on said arm (21) into a position in which the axis of drilling intersects said second axis (II).
Claim 14
Dependent Claim
28 words
A ring drilling rig according to claim 2 wherein said arm (21) is swingable through said arc of 360° from a position in which it is substantially horizontal.
Claim 15
Dependent Claim
27 words
A ring drilling rig according to claim 1 wherein said arm (21) is directed from said support (15) in a direction opposite to the direction of drilling.
Claim 16
Dependent Claim
28 words
A ring drilling rig according to claim 2 wherein said arm (21) is swingable through said arc of 360° from a position in which it is substantially horizontal.
Claim 17
Dependent Claim
33 words
A ring drilling rig according to claim 1 wherein said second axis (II) is tiltable about said first horizontal axis (I) upon tilting of said support (15) about said first horizontal axis (I).
Claim 18
Dependent Claim
20 words
A ring drilling rig according to claim 1 wherein said arm (21) always extends perpendicular to said second axis (II).
References Cited (Backward Citations)
US1978368A
Cited
US3333646A
Cited
US3431983A
Cited
US3481409A
Cited
US3896885A
Cited
US3809344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |