US3178010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor of the axially rotatable rail type
Assignee: ROTORAIL Inc
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Filing: 1963-03-28
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Granted: 1965-04-13
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Van Keuren
- 👤 Donald G Howell
- 👤 Clarence F Gracely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:01
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN AXIALLY ROTATABLE RAIL-TYPE CONVEYOR COMPRISING A RAIL MOUNTED FOR ROTATION ABOUT ITS AXIS AND HAVING A LEAD HELIX EXTENDING THEREAROUND ALONG ITS LENGTH, AT LEAST ONE FLEXIBLE SECTION INCLUDING IN SAID RAIL, COMPRISED OF A FLEXIBLE TORQUE SHAFT, INCLUDING AN OUTER HELICAL WIRE WINDING, AND SELECTIVELY OPERABLE ROTARY DRIVE UNITS COUPLED TO OPPOSITE ENDS OF SAID RAIL, EACH OF SAID DRIVE UNTIS BEING ROTATABLE IN A DIRECTION TO ROTATE THE RAIL OPPOSITELY TO THE TURN DIRECTION OF SAID OUTER HELICAL WIRE WINDING IN THE DIRECTION AWAY FROM SAID DRIVE UNIT IN ORDER TO KEEP SAID WINDING TIGHT.
Claim 2
Dependent Claim
98 words
AN AXIALLY ROTATABLE RAIL-TYPE CONVEYOR COMPRISING A RAIL MOUNTED FOR ROTATION ABOUT ITS AXIS AND HAVING A LEAD HELIX EXTENDING THEREAROUND ALONG ITS LENGTH, AT LEAST ONE FLEXIBLE SECTION INCLUDING IN SAID RAIL, COMPRISED OF A FLEXIBLE TORQUE SHAFT, INCLUDING AN OUTER HELICAL WIRE WINDING, AND SELECTIVELY OPERABLE ROTARY DRIVE UNITS COUPLED TO OPPOSITE ENDS OF SAID RAIL, EACH OF SAID DRIVE UNTIS BEING ROTATABLE IN A DIRECTION TO ROTATE THE RAIL OPPOSITELY TO THE TURN DIRECTION OF SAID OUTER HELICAL WIRE WINDING IN THE DIRECTION AWAY FROM SAID DRIVE UNIT IN ORDER TO KEEP SAID WINDING TIGHT.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |