US3281187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual augering machine
Assignee: Salem Tool Co
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Filing: 1962-07-05
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Granted: 1966-10-25
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Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 George L Adams
- 👤 Charles T Govin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:52
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN AUGER MINING MACHINE COMPRISING A FRAME, A ROTATABLE MINING ASSEMBLY CARRIED BY SAID FRAME TO ROTATE AND MOVE THE AUGERS ALONG SAID FRAME IN MINING, A SINGLE LINE HOIST ON SAID FRAME POSITIONED TO PICK UP AN AUGER SECTION AT SUBSTANTIALLY THE CENTER THEREOF FOR INSERTION INTO AND WITHDRAWAL FROM SAID FRAME, A BAFFLE SUPPORTED ABOVE SAID FRAME AND EXTENDING SUBSTANTIALLY THE LENGTH OF SAID FRAME IN ALIGNMENT THEREWITH TO BE ENGAGED BY THE AUGERS SUSPENDED FROM SAID SINGLE LINE HOIST TO PROPERLY ALIGN THEM WITH SAID FRAME, SAID SINGLE LINE HOIST PRESENTING EACH AUGER INTERMEDIATE THE ENDS OF SAID BAFFLE.
Claim 2
Dependent Claim
102 words
AN AUGER MINING MACHINE COMPRISING A FRAME, A ROTATABLE MINING ASSEMBLY CARRIED BY SAID FRAME TO ROTATE AND MOVE THE AUGERS ALONG SAID FRAME IN MINING, A SINGLE LINE HOIST ON SAID FRAME POSITIONED TO PICK UP AN AUGER SECTION AT SUBSTANTIALLY THE CENTER THEREOF FOR INSERTION INTO AND WITHDRAWAL FROM SAID FRAME, A BAFFLE SUPPORTED ABOVE SAID FRAME AND EXTENDING SUBSTANTIALLY THE LENGTH OF SAID FRAME IN ALIGNMENT THEREWITH TO BE ENGAGED BY THE AUGERS SUSPENDED FROM SAID SINGLE LINE HOIST TO PROPERLY ALIGN THEM WITH SAID FRAME, SAID SINGLE LINE HOIST PRESENTING EACH AUGER INTERMEDIATE THE ENDS OF SAID BAFFLE.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |