Patent US3273942A successfully refreshed from Google Patents.
US3273942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum bulk cargo unloading system for ships
Assignee: Individual
•
Filing: 1964-09-17
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Granted: 1966-09-20
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Expires: 1984-09-17
Abstract
No abstract record available.
Inventors
- 👤 Glen W Mcfarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:46
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A VACUUM CONVEYOR SYSTEM FOR UNLOADING BULK CARGO FROM A HOLD OF A SHIP THROUGH A HATCHWAY FORMED IN A DECK ABOVE THE HOLD, THE SHIP BEING EQUIPMENT WITH HOISTING GEAR, THE COMBINATION OF: (A) A DUCT HAVING AN INLET END POSITIONABLE WITHIN THE HOLD AND HAVING AN OUTLET END POSITIONABLE ADJACENT ONE SIDE OF THE SHIP AND CONNECTIBLE TO A VACUUM SOURCE; (B) UNIVERSAL MOUNTING MEANS CONNECTED TO SAID DUCT ADJACENT SAID OUTLET END THEREOF FOR SUPPORTING SAID DUCT FOR UNIVERSAL MOVEMENT RELATIVE TO THE SHIP; (C) MEANS ON SAID DUCT INTERMEDIATE SAID INLET AND OUTLER ENDS THEREOF FOR CONNECTING SAID DUCT TO THE SHIP''S HOISTING GEAR; (D) SAID DUCT INCLUDING EXTENSIBLE AND CONTRACTIBLE AND FLEXIBLE SECTIONS TO RENDER SAID INLET END OF SAID DUCT MANEUVERABLE WITHIN THE HOLD; AND
Claim 2
Dependent Claim
132 words
IN A VACUUM CONVEYOR SYSTEM FOR UNLOADING BULK CARGO FROM A HOLD OF A SHIP THROUGH A HATCHWAY FORMED IN A DECK ABOVE THE HOLD, THE SHIP BEING EQUIPMENT WITH HOISTING GEAR, THE COMBINATION OF: (A) A DUCT HAVING AN INLET END POSITIONABLE WITHIN THE HOLD AND HAVING AN OUTLET END POSITIONABLE ADJACENT ONE SIDE OF THE SHIP AND CONNECTIBLE TO A VACUUM SOURCE; (B) UNIVERSAL MOUNTING MEANS CONNECTED TO SAID DUCT ADJACENT SAID OUTLET END THEREOF FOR SUPPORTING SAID DUCT FOR UNIVERSAL MOVEMENT RELATIVE TO THE SHIP; (C) MEANS ON SAID DUCT INTERMEDIATE SAID INLET AND OUTLER ENDS THEREOF FOR CONNECTING SAID DUCT TO THE SHIP''S HOISTING GEAR; (D) SAID DUCT INCLUDING EXTENSIBLE AND CONTRACTIBLE AND FLEXIBLE SECTIONS TO RENDER SAID INLET END OF SAID DUCT MANEUVERABLE WITHIN THE HOLD; AND
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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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |