US3128998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scroll type full face continuous miner
Assignee: —
•
Filing: —
•
Granted: 1964-04-14
•
Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:16
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
IN A MINING MACHINE, A BASE MOVABLE OVER THE FLOOR OF A MINE, CUTTING AND DISINTEGRATING MECHANSIM CARRIED BY SAID BASE COMPRISING A PAIR OF RELATIVELY INCLINED DISINTERGRATING AND CONVEYING ROTORS DIVERGING FORWARDLY AND OUTWARDLY FROM SAID BASE, MEANS FOR ROTATING SAID ROTORS IN UNISON, MEANS FOR ADVANCING SAID ROTORS WITH RESPECT TO THE FACE OF A MINE VEIN, SAID ROTORS AS THEY ARE ADVANCED FORMING A FACE SUBSTANTIALLY V-SHAPED IN PLAN, AND FLOOR AND ROOF CUTTERS FOR DETACHING THE APEX PORTION OF THE V-SHAPED FACE FROM THE ROOF AND FLOOR AS SAID ROTORS ARE ADVANCED.
Claim 2
Dependent Claim
69 words
IN COMBINATION, A DISINTERGRATING ROTOR, SUPPORTING AND DRIVING MEANS THEREFOR, AND A MOVABLE BREAKER DEVICE DRIVEN SIMULTANEOUSLY WITH SAID ROTOR RELATIVE THERETO FOR ENGAGING AND BREAKING AWAY MINERAL AT ONE END OF SAID ROTOR WHEREIN A ROTARY TOOTHED HEAD IS ARRANGED AT THE OPPOSITE END OF SAID ROTOR FROM SAID BREAKER DEVICE AND IS MOVABLE RELATIVE TO SAID ROTOR AND TO SAID BREAKER DEVICE AS SAID ROTOR IS DRIVEN.
Claim 3
Dependent Claim
118 words
A MINING APPARATUS COMPRISING, A MOBILE BASE, SPACED PIVOT MEANS ON SAID BASE, SAID PIVOT MEANS BEING LOCATED ON OPPOSITE SIDES RESPECTIVELY OF THE LONGITUDINAL MEDIUM OF SAID BASE, ELONGATED SUPPORT MEANS CONNECTED TO SAID PIVOT MEANS RESPECTIVELY FOR PIVOTAL MOVEMENT TOWARD AND AWAY FROM EACH OTHER, OTHER PIVOT MEANS ON SAID ELONGATED SUPPORTS RESPECTIVELY, DISINTEGRATING HEAD SUPPORT MEANS PIVOTALLY CONNECTED TO SAID OTHER PIVOT MEANS RESPECTIVELY FOR PIVOTAL MOVEMENT RELATIVE TO SAID ELONGATED SUPPORT WITH THE AXES OF SAID OTHER PIVOT MEANS DISPOSED NORMAL TO THE PIVOT AXES OF SAID SPACED PIVOT MEANS RESPECTIVELY, SAID OTHER PIVOT MEANS HAVING THE AXES THEREOF EXTENDING IN THE SAME GENERAL DIRECTION AS SAID ELONGATED SUPPORT AND SAID DISINTEGRATING HEAD SUPPORT.
References Cited (Backward Citations)
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US1336440A
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US1143897A
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US1534462A
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US2261160A
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US2758826A
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US2776824A
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US2836408A
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US2967701A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |