US3351179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyors
Assignee: SOLAR THOMSON ENG CO
•
Filing: 1966-09-28
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Granted: 1967-11-07
•
Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 Thomson Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:40
CPC Classifications
B; B65; B65G; B65G21/00; B65G21/10; B65G21/14; B65G23/00; B65G23/02; B65G23/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
AN CONVEYOR SYSTEM COMPRISING AT LEAST ONE DRIVING BELT, AN ENDLESS CONVEYOR BELT EXTENDING OVER AND BEING DREIVEN BY SAID DRIVING BELT, AND MEANS TO DRIVE SAID DRIVING BELT, THE INNER SURFACE OF SAID CONVEYOR BELT BEING PROVIDED WITH A LONGITUDINAL RIB FORMATION EXTENDING ALONG THE CENTRAL LONGITUDINAL PORTION THEREOF AND HAVING A WIDTH SUBSTANTIALLY LESS THAN THE WIDTH OF THE DRIVING BELT THEREBY REDUCING THE VARIATION IN WIDTH OF THE DRIVING FORMATION ON THE CONVEYOR BELT IN RESPONSE TO ELONGATION OF SAID BELT, THE OUTER SURFACE OF SAID DRIVING BELT BEING PROVIDED WITH A LONGITUDINAL RIB FORMATION EXTENDING OVER SUBSTANTIALLY THE ENTIRE WIDTH THEREOF, ONE PORTION OF THE RIB FORMATION OF SAID DRIVING BELT MESHING IN FRICTIONAL ENGAGEMENT WITH THE RIB FORMATION OF SAID ENDLESS BELT, AND ANOTHER PORTION OF THE RIB FORMATION OF SAID DRIVING BELT FRICTIONALLY ENGAGING AT LEAST A PORTION OF THE UNRIBBED PORTION OF THE INNER SURFACE OF SAID CONVEYOR BELT.
Claim 2
Dependent Claim
156 words
AN CONVEYOR SYSTEM COMPRISING AT LEAST ONE DRIVING BELT, AN ENDLESS CONVEYOR BELT EXTENDING OVER AND BEING DREIVEN BY SAID DRIVING BELT, AND MEANS TO DRIVE SAID DRIVING BELT, THE INNER SURFACE OF SAID CONVEYOR BELT BEING PROVIDED WITH A LONGITUDINAL RIB FORMATION EXTENDING ALONG THE CENTRAL LONGITUDINAL PORTION THEREOF AND HAVING A WIDTH SUBSTANTIALLY LESS THAN THE WIDTH OF THE DRIVING BELT THEREBY REDUCING THE VARIATION IN WIDTH OF THE DRIVING FORMATION ON THE CONVEYOR BELT IN RESPONSE TO ELONGATION OF SAID BELT, THE OUTER SURFACE OF SAID DRIVING BELT BEING PROVIDED WITH A LONGITUDINAL RIB FORMATION EXTENDING OVER SUBSTANTIALLY THE ENTIRE WIDTH THEREOF, ONE PORTION OF THE RIB FORMATION OF SAID DRIVING BELT MESHING IN FRICTIONAL ENGAGEMENT WITH THE RIB FORMATION OF SAID ENDLESS BELT, AND ANOTHER PORTION OF THE RIB FORMATION OF SAID DRIVING BELT FRICTIONALLY ENGAGING AT LEAST A PORTION OF THE UNRIBBED PORTION OF THE INNER SURFACE OF SAID CONVEYOR BELT.
References Cited (Backward Citations)
US2863555A
Cited
US3268065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |