Patent US3873159A successfully refreshed from Google Patents.
US3873159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tool support on vehicle for mining
Assignee: LEMAND ENGINEERING Ltd
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Filing: 1973-07-13
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Granted: 1975-03-25
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Expires: 1993-07-13
Abstract
Abstract A floor mounted mining machine in which a tool such as a hydraulic hammer is so mounted that it can be subjected to a series of actions. The hammer can be rotated about its own axis, inclined upwardly and downwardly, oscillated transversely, moved bodily forwards relative to the base of the machine, moved bodily forwards relative to a boom supported on the base of the machine and disposed at an attitude relative to the boom between horizontal and vertical.
Inventors
- 👤 Kenneth Hazelton Dabell
- 👤 Raymond Jeffery Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:58
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/20; E21C29/00; E21C29/22; E21C29/24; E21C29/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A mining machine comprising: a base; a first carriage slidable along the base; a cradle mounted on the first carriage for rotation with respect to said carriage about a vertical axis; a fixed length boom parallel with the longitudinal axis of the base, rotatable about its own longitudinal axis, and pivoted on the cradle for movement about a horizontal axis; a platform mounted on the boom and pivotal about a horizontal axis at or adjacent the leading end of the boom; and, a second carriage for mounting an earth-working tool and slidable relative to the platform.
Claim 2
Dependent Claim
96 words
A mining machine comprising: a base; a first carriage slidable along the base; a cradle mounted on the first carriage for rotation with respect to said carriage about a vertical axis; a fixed length boom parallel with the longitudinal axis of the base, rotatable about its own longitudinal axis, and pivoted on the cradle for movement about a horizontal axis; a platform mounted on the boom and pivotal about a horizontal axis at or adjacent the leading end of the boom; and, a second carriage for mounting an earth-working tool and slidable relative to the platform.
Claim 3
Dependent Claim
20 words
A mining machine as claimed in claim 1, in which the sliding and pivotal movements are effected by hydraulic rams.
Claim 4
Dependent Claim
22 words
A mining machine as claimed in claim 2, in which the boom rotation is effected by rack-and-pinion means controlled by hydraulic rams.
Claim 5
Dependent Claim
27 words
A mining machine as claimed in claim 2 in which the cradle is oscillatable by hydraulic rams up to 45* to each side of a central plane.
Claim 6
Dependent Claim
25 words
A mining machine as claimed in claim 2 in which an operator''s station including controls for the hydraulic rams is located on said first carriage.
Claim 7
Dependent Claim
25 words
A mining machine as claimed in claim 2, in which the boom is pivotal about the horizontal axis upwardly to 35* and downwardly to 10*.
Claim 8
Dependent Claim
23 words
A mining machine as claimed in claim 2, in which the platform is pivoted by a hydraulic ram between horizontal and vertical attitudes.
Claim 9
Dependent Claim
17 words
A mining machine as claimed in claim 1 in which the earth-working tool is a hydraulically-operated hammer.
Claim 10
Dependent Claim
21 words
A mining machine as claimed in claim 1 further comprising a dozer blade attached to the forward end of said base.
Claim 11
Dependent Claim
18 words
A mining machine as claimed in claim 1 further comprising front flood lights attached to said first carriage.
Claim 12
Dependent Claim
19 words
A mining machine as claimed in claim 1 further comprising an impulse water spray operable with the earth-working tool.
Claim 13
Dependent Claim
55 words
A mining machine as claimed in claim 1 further comprising material-removing means located rearwardly of and coupled to the machine base, said means having a winch operatively connected by cable and sheave means to a slush bucket in advance of the mining machine and movable transversely thereof to move cut material laterally of the machine.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |