US3568779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground rotary drill
Assignee: Individual
•
Filing: 1969-09-19
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Granted: 1971-03-09
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Expires: 1989-09-19
Abstract
Abstract A rotary drilling apparatus of the portable type having a twopart frame including a base and head which are pivotally adjustable relative to one another with the headframe carrying the drill and feed structure. The headframe incorporates a feed drive in the form of a ball-screw arrangement which supports the cross head carrying the drill and motor for the same to reduce the overall size and length of the supporting structure for the drill and feed motors. This provides a compact drilling apparatus particularly adaptable for drilling sites having a minimum of head room.
Inventors
- 👤 Robert E Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:36
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/024; E21B19/00; E21B19/08; E21B19/081; E21B7/027; E21B7/028
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
A drilling machine comprising, a base frame, a headframe, pivot means included in part at one extremity of the base frame and at one extremity of the headframe and pivotally mounting the headframe on the base frame for angular adjustment relative thereto, said headframe having side supporting column members and cross bracing at the extremities of the same defining an open interior therebetween, screw means positioned in each of the side columns and extending along the extent of the same parallel to one another being journaled on the headframe, a cross head positioned between the column members and extending across the open interior of the headframe being mounted on the screw means, recirculating bearing means positioned in the extremities of the cross head and mounting the cross head on the screw means in the column members, means positioned on the headframe for providing relative movement between the screw means and the recirculating bearing means to move the cross head relative to the column members along the extent of the headframe and with a reciprocating movement, and rotary motor means positioned on the cross head and including means for mounting a drill stem such that the drill stem is rotated in the cross head and reciprocated in the headframe.
Claim 2
Dependent Claim
208 words
A drilling machine comprising, a base frame, a headframe, pivot means included in part at one extremity of the base frame and at one extremity of the headframe and pivotally mounting the headframe on the base frame for angular adjustment relative thereto, said headframe having side supporting column members and cross bracing at the extremities of the same defining an open interior therebetween, screw means positioned in each of the side columns and extending along the extent of the same parallel to one another being journaled on the headframe, a cross head positioned between the column members and extending across the open interior of the headframe being mounted on the screw means, recirculating bearing means positioned in the extremities of the cross head and mounting the cross head on the screw means in the column members, means positioned on the headframe for providing relative movement between the screw means and the recirculating bearing means to move the cross head relative to the column members along the extent of the headframe and with a reciprocating movement, and rotary motor means positioned on the cross head and including means for mounting a drill stem such that the drill stem is rotated in the cross head and reciprocated in the headframe.
Claim 3
Dependent Claim
48 words
The drilling machine of claim 1 in which the means positioned on the headframe and providing relative movement between the recirculating bearing means and the screw means is a motive means connected to the screw means for rotating the same simultaneously and at the same speed of rotation.
Claim 4
Dependent Claim
42 words
The drilling machine of claim 2 in which the motive means coupled to the screw means includes a fluid motor mounted on the headframe and coupled to the screw means in the column members through gearing for simultaneous rotation of the same.
Claim 5
Dependent Claim
42 words
The drilling machine of claim 2 in which the headframe iNcludes guide means positioned on the column members and cooperating with the cross head to guide the same for reciprocating motion to advance and retract the drill stem in a drilling operation.
Claim 6
Dependent Claim
41 words
The drilling machine of claim 2 in which the base and headframes are elongated members of substantially the same length and width dimension and in which the base frame includes skid means mounted on the same for positioning the drilling machine.
Claim 7
Dependent Claim
41 words
The drilling machine of claim 1 and including anchor means positioned at the pivoted extremity of the headframe being adjustable longitudinally relative thereto and adapted to secure the headframe to the surface into which the drill stem is to be positioned.
Claim 8
Dependent Claim
53 words
The drilling machine of claim 2 in which the motive means rotating the screw means and the motive means on the cross head rotating the drill stem are rotary fluid motors and including a source of fluid power positioned on the base frame and adapted to be connected to said rotary fluid motors.
Claim 9
Dependent Claim
31 words
The drilling machine of claim 1 and including linear actuator means connected between the base frame and headframe for pivoting the headframe relative to the base frame for varying angular positions.
Claim 10
Dependent Claim
32 words
The drilling machine of claim 8 and including adjustable stop means connected between the base frame and headframe for maintaining the headframe in any desired angular position relative to the base frame.
Claim 11
Dependent Claim
47 words
The drilling machine of claim 1 and including electric motor means and pump connected through a source of hydraulic fluid and adapted to be selectively connected through hose means to the motive means on the driving screw means and the rotary motor means for the drill stem.
Claim 12
Dependent Claim
152 words
A drilling machine comprising, a base frame, a headframe pivotally mounted on the base frame at one extremity thereof for angular adjustment relative thereto, said headframe having a pair of longitudinal guide means thereon, a cross head positioned on the headframe for longitudinal movement therein on the guide means, screw means for each guide means positioned on the headframe and extending through the cross head and parallel to the guide means, recirculating bearing means positioned on the cross head and mounting the cross head on the screw means in the headframe, means providing relative movement between the screw means and the recirculating bearing means to move the cross head relative to the headframe along the extent of the guide means for reciprocating feed movement, and rotary motor means including means for mounting a drill stem mounted on the cross head for rotating the drill stem with feed movement of the cross head.
Claim 13
Dependent Claim
152 words
A drilling machine comprising, a base frame, a headframe pivotally mounted on the base frame at one extremity thereof for angular adjustment relative thereto, said headframe having a pair of longitudinal guide means thereon, a cross head positioned on the headframe for longitudinal movement therein on the guide means, screw means for each guide means positioned on the headframe and extending through the cross head and parallel to the guide means, recirculating bearing means positioned on the cross head and mounting the cross head on the screw means in the headframe, means providing relative movement between the screw means and the recirculating bearing means to move the cross head relative to the headframe along the extent of the guide means for reciprocating feed movement, and rotary motor means including means for mounting a drill stem mounted on the cross head for rotating the drill stem with feed movement of the cross head.
Claim 14
Dependent Claim
68 words
The drilling machine of claim 11 in which the means providing relative movement between the recirculating bearing means and the screw means is a rotary motive means mounted on the headframe and connected to the screw means for rotating the screw means at a variable speed and at a reversible direction of rotation to vary the speed and direction of rotation of feed movement of the drill stem.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |