US3091439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auger mining machine
Assignee: Salem Tool Co
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Filing: 1960-06-20
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Granted: 1963-05-28
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 George L Adams
- 👤 Charles T Govin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:46
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN AUGER MINING MACHINE COMPRISING A FRAME, A ROTATABLE MINING ASSEMBLY CARRIED BY SAID FRAME AND PROVIDING A UNIFORM LOCATION TO ROTATE AND MOVE THE AUGERS ALONG SAID FRAME IN MINING, A SPACED PAIR OF PARALLEL TRACK MEMBERS LOCATED BENEATH SAID FRAME FOR MOVEMENT UPON THE GROUND, INDEPENDENTLY OPERATED AND CONTROLLED POWER MEANS CONNECTING EACH TRACK MEMBER TO THE FRAME FOR MOVING EACH TRACK MEMBER IN EITHER DIRECTION TO STEER AND MOVE THE FRAME ALONG THE GROUND, AN AUGER STORAGE RACK ALONG ONE SIDE OF SAID FRAME, LATCH MEANS TO HOLD SAID AUGER STORAGE RACK TO SAID FRAME, LATCH MEANS TO HOLD SAID SAID AUGER STORAGE RACK ENGAGING SAID TRACK MEMBERS TO CARRY THE SAME ALONG WITH SAID FRAME TO MAINTAIN THE AUGERS AT A UNIFORM LOCATION.
Claim 2
Dependent Claim
127 words
AN AUGER MINING MACHINE COMPRISING A FRAME, A ROTATABLE MINING ASSEMBLY CARRIED BY SAID FRAME AND PROVIDING A UNIFORM LOCATION TO ROTATE AND MOVE THE AUGERS ALONG SAID FRAME IN MINING, A SPACED PAIR OF PARALLEL TRACK MEMBERS LOCATED BENEATH SAID FRAME FOR MOVEMENT UPON THE GROUND, INDEPENDENTLY OPERATED AND CONTROLLED POWER MEANS CONNECTING EACH TRACK MEMBER TO THE FRAME FOR MOVING EACH TRACK MEMBER IN EITHER DIRECTION TO STEER AND MOVE THE FRAME ALONG THE GROUND, AN AUGER STORAGE RACK ALONG ONE SIDE OF SAID FRAME, LATCH MEANS TO HOLD SAID AUGER STORAGE RACK TO SAID FRAME, LATCH MEANS TO HOLD SAID SAID AUGER STORAGE RACK ENGAGING SAID TRACK MEMBERS TO CARRY THE SAME ALONG WITH SAID FRAME TO MAINTAIN THE AUGERS AT A UNIFORM LOCATION.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |