US3306665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water gun remotely mounted on planer cutter guide
Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
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Filing: 1964-05-18
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Granted: 1967-02-28
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Lobbe Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/22; E21C27/00; E21C27/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
MINING EQUIPMENT FOR THE EXTRACTION OF MINERAL FROM THE UPPER PORTION OF A MINE FACE, IN CONJUNCTION WITH A MINING PLANER WHICH IS CONDUCTED BACK AND FORTH ALONG THE LOWER PORTION OF SUCH MINE FACE ON LONGITUDINALLY EXTENDING GUIDE MEANS ADJACENT THE MINE FACE BEING WORKED FOR THE EXTRACTION OF MINERAL FROM SUCH LOWER PORTION OF THE MINE FACE, WHICH COMPRISES AT LEAST TWO LONGITUDINALLY SPACED APART HIGH PRESSURE WATER GUNS ARTICULATEDLY MOUNTED ON SUCH GUIDE MEANS AND BEING SPACED REMOTELY FROM SUCH MINING PLANER, FOR LIMITED PIVOTING ABOUT BOTH A HORIZONTAL AXIS AND A VERTICAL AXIS TO DIRECT HIGH PRESSURE WATER JETS AGAINST THE UPPER PORTION OF THE MINE FACE TO LOOSEN THE MINERAL SUFFICIENTLY TO CAUSE SUCH LOOSENED MINERAL TO FALL AWAY FROM SUCH UPPER MINE FACE PORTION, SAID WATER GUNS BEING SPACED APART ON SUCH GUIDE MEANS A LINEAR DISTANCE IN THE LONGITUDINAL DIRECTION OF SAID GUIDE MEANS PERMITTING AT LEAST SLIGHT OVERLAP IN THE RANGE OF THE WATER JETS OF CORRESPONDINGLY ADJACENT WATER GUNS.
Claim 2
Dependent Claim
168 words
MINING EQUIPMENT FOR THE EXTRACTION OF MINERAL FROM THE UPPER PORTION OF A MINE FACE, IN CONJUNCTION WITH A MINING PLANER WHICH IS CONDUCTED BACK AND FORTH ALONG THE LOWER PORTION OF SUCH MINE FACE ON LONGITUDINALLY EXTENDING GUIDE MEANS ADJACENT THE MINE FACE BEING WORKED FOR THE EXTRACTION OF MINERAL FROM SUCH LOWER PORTION OF THE MINE FACE, WHICH COMPRISES AT LEAST TWO LONGITUDINALLY SPACED APART HIGH PRESSURE WATER GUNS ARTICULATEDLY MOUNTED ON SUCH GUIDE MEANS AND BEING SPACED REMOTELY FROM SUCH MINING PLANER, FOR LIMITED PIVOTING ABOUT BOTH A HORIZONTAL AXIS AND A VERTICAL AXIS TO DIRECT HIGH PRESSURE WATER JETS AGAINST THE UPPER PORTION OF THE MINE FACE TO LOOSEN THE MINERAL SUFFICIENTLY TO CAUSE SUCH LOOSENED MINERAL TO FALL AWAY FROM SUCH UPPER MINE FACE PORTION, SAID WATER GUNS BEING SPACED APART ON SUCH GUIDE MEANS A LINEAR DISTANCE IN THE LONGITUDINAL DIRECTION OF SAID GUIDE MEANS PERMITTING AT LEAST SLIGHT OVERLAP IN THE RANGE OF THE WATER JETS OF CORRESPONDINGLY ADJACENT WATER GUNS.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |