Patent US1570989A successfully refreshed from Google Patents.
US3134481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor
Assignee: Conveyor Corp of America Inc
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Filing: 1962-11-30
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Granted: 1964-05-26
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Aaron M Maimin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/02; B65G19/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A CONVEYOR COMPRISING AN UPPER GUIDE HAVING A BORE THERETHROUGH, AND HAVING A GROOVE FORMED IN THE UNDERSIDE THEREOF, A LOWER TRACK HAVING A GROOVE FORMED IN THE UPPER SURFACE THEREOF, SAID GROOVES CO-ACTING TO FORM A GUIDE CHANNEL, A DRIVEN ROLLER ADJACENT ONE END OF SAID BORE AND SAID TRACK, AN IDLE ROLLER ADJACENT THE OPPOSITE END OF SAID BORE AND SAID TRACK, A CABLE TRAVELING ENDLESSLY OVER SAID ROLLERS WHEREBY THE UPPER FLIGHT OF SAID CABLE PASSES THROUGH SAID BORE AND THE LOWER FLIGHT THEREOF PASSES THROUGH SAID CHANNEL, LONGITUDINALLY SPACED BALLS MOUNTED ON SAID CABLE, AND MEANS FOR MAINTAINING SAID CABLE IN TAUT CONDITION AND CENTERED RELATIVE TO SAID BORE AND SAID CHANNEL, THE DIAMETER OF SAID BORE AND THE DIAMETER OF SAID CHANNEL BEING LARGER THAN THE DIAMETER OF SAID BALLS, WHEREBY SAID BALLS ARE MOVED THROUGH SAID BORE AND THROUGH SAID CHANNEL WITHOUT CONTACTING THE WALL OF SAID BORE OR THE SURFACES WHICH FORM SAID CHANNEL, THE LENGTH OF SAID GUIDE BEING LESS THAN, AND THE LENGTH OF SAID TRACK BEING GREATER THAN THE DISTANCE BETWEEN SAID ROLLERS.
Claim 2
Dependent Claim
183 words
A CONVEYOR COMPRISING AN UPPER GUIDE HAVING A BORE THERETHROUGH, AND HAVING A GROOVE FORMED IN THE UNDERSIDE THEREOF, A LOWER TRACK HAVING A GROOVE FORMED IN THE UPPER SURFACE THEREOF, SAID GROOVES CO-ACTING TO FORM A GUIDE CHANNEL, A DRIVEN ROLLER ADJACENT ONE END OF SAID BORE AND SAID TRACK, AN IDLE ROLLER ADJACENT THE OPPOSITE END OF SAID BORE AND SAID TRACK, A CABLE TRAVELING ENDLESSLY OVER SAID ROLLERS WHEREBY THE UPPER FLIGHT OF SAID CABLE PASSES THROUGH SAID BORE AND THE LOWER FLIGHT THEREOF PASSES THROUGH SAID CHANNEL, LONGITUDINALLY SPACED BALLS MOUNTED ON SAID CABLE, AND MEANS FOR MAINTAINING SAID CABLE IN TAUT CONDITION AND CENTERED RELATIVE TO SAID BORE AND SAID CHANNEL, THE DIAMETER OF SAID BORE AND THE DIAMETER OF SAID CHANNEL BEING LARGER THAN THE DIAMETER OF SAID BALLS, WHEREBY SAID BALLS ARE MOVED THROUGH SAID BORE AND THROUGH SAID CHANNEL WITHOUT CONTACTING THE WALL OF SAID BORE OR THE SURFACES WHICH FORM SAID CHANNEL, THE LENGTH OF SAID GUIDE BEING LESS THAN, AND THE LENGTH OF SAID TRACK BEING GREATER THAN THE DISTANCE BETWEEN SAID ROLLERS.
References Cited (Backward Citations)
US2987170A
Cited
US2946427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |