US3588176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article transport system and method
Assignee: International Business Machines Corp
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Filing: 1968-11-13
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Granted: 1971-06-28
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Expires: 1988-11-13
Abstract
Abstract AN ARTICLE IS TRANSPORTED THROUGH AN ENCLOSED DUCT BY BEING ADVANCED SEQUENTIALLY FROM ONE TO ANOTHER OF A PLURALITY OF STATIONS. THE ARTICLE IS SUSPENDED WITHIN THE DUCT BY AN AIR FILM IN THE DUCT. THE ARTICLE IS ADVANCED FROM ONE STATION TO THE NEXT ADJACENT STATION BY PRODUCING A PRESSURE DIFFERENTIAL BETWEEN THE TWO STATIONS. TO PREVENT OVERTRAVEL OF THE ARTICLE BEYOND THE NEXT ADJACENT STATION TO WHICH IT IS ADVANCED, A VACUUM BRAKE MAY BE UTILIZED ADJACENT EACH OF THE STATIONS.
Inventors
- 👤 Thomas M Byrne
- 👤 Arkady Leoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:18
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/02; B65G51/03; H; H10; H10P; H10P72/00; H10P72/30; H10P72/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |