Patent US3273694A successfully refreshed from Google Patents.
US3273694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable conveyor
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:53
CPC Classifications
B; B65; B65G; B65G21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A CONVEYING STRUCTURE, ELONGATED COMPRESSION TUBE MEANS, SAID MEANS HAVING A TERMINAL AT EACH END, A PULLEY ASSOCIATED WITH EACH TERMINAL, AN ENDLESS CONVEYOR BELT REEVED ABOUT THE TWO PULLEYS, UPPER AND LOWER FLEXIBLE STRAND MEANS DISPOSED AT LEVELS RESPECTIVELY ABOVE AND BELOW THE COMPRESSION TUBE MEANS AND SUBSTANTIALLY PARALLEL WITH ITS ROLLER MEANS CARRIED BY THE FLEXIBLE STRAND MEANS AND EFFECTIVELY SUPPORTING THE CONVEYOR BELT ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE COMPRESSION TUBE MEANS, THE STRAND MEANS BEING CONNECTED RESPECTIVELY BETWEEN THE TERMINALS, AND MEANS FOR STRETCHING THE STRAND MEANS TO SIMULTANEOUSLY APPLY COMPRESSION IN THE COMPRESSION TUBE MEANS AND TENSION IN THE STRAND MEANS TO FURNISH SUPPORT FOR THE BELT.
Claim 2
Dependent Claim
114 words
IN A CONVEYING STRUCTURE, ELONGATED COMPRESSION TUBE MEANS, SAID MEANS HAVING A TERMINAL AT EACH END, A PULLEY ASSOCIATED WITH EACH TERMINAL, AN ENDLESS CONVEYOR BELT REEVED ABOUT THE TWO PULLEYS, UPPER AND LOWER FLEXIBLE STRAND MEANS DISPOSED AT LEVELS RESPECTIVELY ABOVE AND BELOW THE COMPRESSION TUBE MEANS AND SUBSTANTIALLY PARALLEL WITH ITS ROLLER MEANS CARRIED BY THE FLEXIBLE STRAND MEANS AND EFFECTIVELY SUPPORTING THE CONVEYOR BELT ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE COMPRESSION TUBE MEANS, THE STRAND MEANS BEING CONNECTED RESPECTIVELY BETWEEN THE TERMINALS, AND MEANS FOR STRETCHING THE STRAND MEANS TO SIMULTANEOUSLY APPLY COMPRESSION IN THE COMPRESSION TUBE MEANS AND TENSION IN THE STRAND MEANS TO FURNISH SUPPORT FOR THE BELT.
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) | 1969-09-19 | 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 |