Patent US3169796A successfully refreshed from Google Patents.
US3169796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous miner having pivotally mounted head
Assignee: Marmon Herrington Co
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Filing: 1961-04-25
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Granted: 1965-02-16
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 John B Long
- 👤 Allen N Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
IN A CONTINUOUS MINER MOUNTED ON SUPPORTING MEANS, THE COMBINATION OF BASE MEANS, A LONGITUDINALLY EXTENDING FRAME, PIVOT MEANS PIVOTALLY INTERCONNECTING SAID FRAME WITH SAID BASE MEANS, CUTTING MEANS MOUNTED UPON SAID FRAME AND EXTENDING LATERALLY TO ONE SIDE THEREOF, CONVEYING MEANS MOUNTED UPON SAID FRAME, SAID CONVEYING MEANS BEING POSITIONED WITH RESPECT TO SAID CUTTING MEANS FOR RECEIPT AND CONVEYING OF MATERIAL FROM SAID CUTTING MEANS AND POSITIONED FOR DISCHARGE OF THE MATERIAL ONTO SAID BASE MEANS, GUIDE MEANS SECURED TO SAID FRAME, SAID GUIDE MEANS INCLUDING SUPPORT MEANS EXTENDING LATERALLY FROM SAID FRAME AT THE SIDE THEREOF OPPOSITE TO SAID CUTTING MEANS, SAID FRAME, SUPPORT MEANS AND CUTTING MEANS COMPRISING A LEVER AND THE MEANS FOR SUPPORTING SAID MINER COMPRISING A FULCRUM FOR SAID LEVER, SAID FRAME ABUTTING THE FULCRUM OF SAID LEVER, SAID SUPPORT MEANS AND SAID CUTTING MEANS CONSTITUTING ARMS OF SAID LEVER EXTENDING TO OPPOSITE SIDES OF SAID FRAME, SAID GUIDE MEANS INCLUDING MEANS SECURED TO SAID SUPPORT MEANS ADJACENT THE END THEREOF LATERALLY EXTENDANT FROM SAID FRAME FOR THE APPLICATION OF A FORCE ADJACENT THE END OF SAID SUPPORT MEANS LATERALLY EXTENDANT FROM SAID FRAME, THE FORCE OF SAID MEANS BEING APPLICABLE FOR THE GUIDING AND TILTING OF SAID LEVER ABOUT ITS FULCRUM, AND ADVANCING AND RETRACTING MEANS MOUNTED UPON SAID FRAME FOR MOVING SAID FRAME ABOUT SAID PIVOT MEANS.
Claim 2
Dependent Claim
226 words
IN A CONTINUOUS MINER MOUNTED ON SUPPORTING MEANS, THE COMBINATION OF BASE MEANS, A LONGITUDINALLY EXTENDING FRAME, PIVOT MEANS PIVOTALLY INTERCONNECTING SAID FRAME WITH SAID BASE MEANS, CUTTING MEANS MOUNTED UPON SAID FRAME AND EXTENDING LATERALLY TO ONE SIDE THEREOF, CONVEYING MEANS MOUNTED UPON SAID FRAME, SAID CONVEYING MEANS BEING POSITIONED WITH RESPECT TO SAID CUTTING MEANS FOR RECEIPT AND CONVEYING OF MATERIAL FROM SAID CUTTING MEANS AND POSITIONED FOR DISCHARGE OF THE MATERIAL ONTO SAID BASE MEANS, GUIDE MEANS SECURED TO SAID FRAME, SAID GUIDE MEANS INCLUDING SUPPORT MEANS EXTENDING LATERALLY FROM SAID FRAME AT THE SIDE THEREOF OPPOSITE TO SAID CUTTING MEANS, SAID FRAME, SUPPORT MEANS AND CUTTING MEANS COMPRISING A LEVER AND THE MEANS FOR SUPPORTING SAID MINER COMPRISING A FULCRUM FOR SAID LEVER, SAID FRAME ABUTTING THE FULCRUM OF SAID LEVER, SAID SUPPORT MEANS AND SAID CUTTING MEANS CONSTITUTING ARMS OF SAID LEVER EXTENDING TO OPPOSITE SIDES OF SAID FRAME, SAID GUIDE MEANS INCLUDING MEANS SECURED TO SAID SUPPORT MEANS ADJACENT THE END THEREOF LATERALLY EXTENDANT FROM SAID FRAME FOR THE APPLICATION OF A FORCE ADJACENT THE END OF SAID SUPPORT MEANS LATERALLY EXTENDANT FROM SAID FRAME, THE FORCE OF SAID MEANS BEING APPLICABLE FOR THE GUIDING AND TILTING OF SAID LEVER ABOUT ITS FULCRUM, AND ADVANCING AND RETRACTING MEANS MOUNTED UPON SAID FRAME FOR MOVING SAID FRAME ABOUT SAID PIVOT MEANS.
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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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |