US3664436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable mounting for rock drills
Assignee: Sullivan Machinery Co
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Filing: 1970-05-15
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Granted: 1972-05-23
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Expires: 1990-05-15
Abstract
Abstract An adjustable mounting for a rock drill having a feed tilt mechanism whereby the elongated drill guide frame is pivotable by a tilt cylinder through at least 150*. This capability is made possible by the use of a cylinder rod extension having its motion controlled by a pivot arm pivotably mounted on the same yoke as is the guide frame.
Inventors
- 👤 Michael A Beagan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:47
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B15/00; E21B15/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A drill mounting comprising: an elongated boom; a yoke member non-pivotally mounted at the free end of said boom; a guide frame supporting member pivotally mounted on said yoke member for limited rotation with respect to said boom about a single axis substantially normal to the axis of said boom; a guide frame mounted on said supporting member; an extensible fluid operated cylinder pivotally mounted on said yoke member having an extendable and retractable rod element; a link element pivotally connected to said rod element and to said supporting member; an arm member pivotally mounted on said yoke member and pivotally connected to at least one of said elements whereby at least about 150* of guide frame tilting action is provided relative to said yoke member.
Claim 2
Dependent Claim
126 words
A drill mounting comprising: an elongated boom; a yoke member non-pivotally mounted at the free end of said boom; a guide frame supporting member pivotally mounted on said yoke member for limited rotation with respect to said boom about a single axis substantially normal to the axis of said boom; a guide frame mounted on said supporting member; an extensible fluid operated cylinder pivotally mounted on said yoke member having an extendable and retractable rod element; a link element pivotally connected to said rod element and to said supporting member; an arm member pivotally mounted on said yoke member and pivotally connected to at least one of said elements whereby at least about 150* of guide frame tilting action is provided relative to said yoke member.
Claim 3
Dependent Claim
31 words
A drill mounting as specified in claim 1 wherein said boom has therein an extensible inner member and said yoke member is mounted at the emergent end of said extensible member.
Claim 4
Dependent Claim
37 words
A drill mounting as specified in claim 1 wherein said rod element said link element and said arm member are pivotally connected together by a single pin to pivot relative to each other about a common axis.
Claim 5
Dependent Claim
36 words
A drill mounting as specified in claim 1 wherein said guide frame is pivotally mounted on said supporting member for limited rotation about an axis generally parallel to the plane of the axis of said boom.
Claim 6
Dependent Claim
31 words
A drill mounting as specified in claim 4 wherein said guide frame is an elongated member having a drill motor slidably mounted thereon for powered movement longitudinally of said guide frame.
Claim 7
Dependent Claim
38 words
A drill mounting as specified in claim 5 wherein said drill motor is drivingly connected to an elongated drill steel and a drill bit is drivingly mounted upon the end of said drill steel remote from said motor.
Claim 8
Dependent Claim
29 words
A drill mounting as specified in claim 1 wherein said arm member and said guide frame supporting member are pivotable relative to said yoke member about respective parallel axes.
Claim 9
Dependent Claim
57 words
A drill mounting as specified in claim 7 wherein said rod element, said link element and said arm member are connected by a common pin to pivot about a common axis and said fluid operated cylinder is pivotable about an axis parallel to the said common axis which is in turn parallel to the aforementioned parallel axes.
Claim 10
Dependent Claim
79 words
A drill mounting as specified in claim 8 wherein said yoke member has a pair of spaced apart end portions each of said end portions having a pair of parallel bores extending therethrough substantially normal to the axis of said booM and mating with the parallel bores of the opposite one of said spaced arm portions to receive therein respective pins providing the pivoting action of said arm and said guide frame support member relative to said yoke member.
Claim 11
Dependent Claim
23 words
A drill mounting as specified in claim 1 wherein said yoke member is rigidly secured to the free end of said boom 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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |