US3314723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sidewall miner with vertically swingable rotary cutter and t-shaped conveyor
Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
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Filing: 1964-07-10
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Granted: 1967-04-18
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Mennekes Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
ROTARY CUTTING MEANS ADAPTED TO BE CONDUCTED BACK AND FORTH LONGITUDINALLY ALONG A MINE FACE IN EXTRACTIVE ENGAGEMENT THEREWITH FOR THE REMOVAL OF MINERAL FROM THE MINE FACE, WHICH COMPRISES A LONGITUDINALLY MOVABLE SLED, A MOTOR MOUNTED ON THE SLED, AND A CUTTING WHEEL OPERATIVELY CONNECTED TO SAID MOTOR FOR ROTATION ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE PATH OF LONGITUDINAL MOVEMENT OF SAID SLED, SAID WHEEL HAVING CUTTING TOOLS THEREON PERIPHERALLY EXTENDING RADIALLY OUTWARDLY AND LATERALLY OUTWARDLY AT AN ANGLE TO THE RADIAL DIRECTION, THE OUTWARD PERIPHERAL PATH OF SAID CUTTING TOOLS EXTENDING BEYOND SAID SLED FOR EXTRACTIVE ENGAGEMENT OF THE CUTTING TOOLS TRANSVERSELY AND LONGITUDINALLY WITH A MINE FACE ADJACENT THE LONGITUDINAL PATH OF MOVEMENT OF SAID SLED.
Claim 2
Dependent Claim
120 words
ROTARY CUTTING MEANS ADAPTED TO BE CONDUCTED BACK AND FORTH LONGITUDINALLY ALONG A MINE FACE IN EXTRACTIVE ENGAGEMENT THEREWITH FOR THE REMOVAL OF MINERAL FROM THE MINE FACE, WHICH COMPRISES A LONGITUDINALLY MOVABLE SLED, A MOTOR MOUNTED ON THE SLED, AND A CUTTING WHEEL OPERATIVELY CONNECTED TO SAID MOTOR FOR ROTATION ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE PATH OF LONGITUDINAL MOVEMENT OF SAID SLED, SAID WHEEL HAVING CUTTING TOOLS THEREON PERIPHERALLY EXTENDING RADIALLY OUTWARDLY AND LATERALLY OUTWARDLY AT AN ANGLE TO THE RADIAL DIRECTION, THE OUTWARD PERIPHERAL PATH OF SAID CUTTING TOOLS EXTENDING BEYOND SAID SLED FOR EXTRACTIVE ENGAGEMENT OF THE CUTTING TOOLS TRANSVERSELY AND LONGITUDINALLY WITH A MINE FACE ADJACENT THE LONGITUDINAL PATH OF MOVEMENT OF SAID SLED.
Claim 3
Dependent Claim
53 words
MINING CONVEYOR ADAPTED TO EXTEND LONGITUDINALLY ALONG A MINE FACE TO CONVEY AWAY FROM THE MINE SITE MINERAL EXTRACTED FROM THE MINE FACE, WHICH COMPRISES A T-SHAPED CONVEYOR INCLUDING A PAIR OF LONGITUDINAL WING PORTIONS ADAPTED TO EXTEND ALONG A MINE FACE AND A TRANSVERSE STEM PORTION CONNECTED TO SAID WING PORTIONS INTER-
Claim 4
Dependent Claim
53 words
MINING CONVEYOR ADAPTED TO EXTEND LONGITUDINALLY ALONG A MINE FACE TO CONVEY AWAY FROM THE MINE SITE MINERAL EXTRACTED FROM THE MINE FACE, WHICH COMPRISES A T-SHAPED CONVEYOR INCLUDING A PAIR OF LONGITUDINAL WING PORTIONS ADAPTED TO EXTEND ALONG A MINE FACE AND A TRANSVERSE STEM PORTION CONNECTED TO SAID WING PORTIONS INTER-
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |