US3289816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible conveyor
Assignee: Lee Norse Co
•
Filing: 1965-09-28
•
Granted: 1966-12-06
•
Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Baechli George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
B; B65; B65G; B65G21/00; B65G21/10; B65G21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN EXTENSIBLE BELT CONVEYOR FOR CONVEYING DISINTEGRATED MINED MATERIAL, SAID CONVEYOR COMPRISING: A SUPPORTING FRAME HAVING A HEAD SECTION AND A TAIL SECTION DETACHABLY CONNECTED TO SAID HEAD SECTION FOR CONJOINED MOVEMENT WITH SAID HEAD SECTION; TRACTION MEANS SUPPORTING SAID HEAD SECTION FOR EFFECTING MOVEMENT OF SAID HEAD SECTION; GUIDE MEANS UPON SAID HEAD SECTION AND SAID TAIL SECTION FOR GUIDING AN ENDLESS BELT LONGITUDINALLY ON SAID HEAD SECTION AND SAID TAIL SECTION; STORAGE MEANS UPON SAID HEAD SECTION FOR STORING A PORTION OF AN ENDLESS BELT AND VARYING THE EFFECTIVE LENGTH OF THE ENDLESS BELT UPON MOVEMENT OF SAID HEAD SECTION WITH SAID TAIL SECTION DETACHED THEREFROM; AN ENDLESS BELT LONGITUDINALLY ON SAID HEAD SECTION AND SAID TAIL SECTION FOR LONGITUDINAL MOVEMENT THEREON GUIDED BY SAID GUIDE MEANS AND ON SAID STORAGE MEANS TO BE VARIABLE IN EFFECTIVE LENGTH UPON MOVEMENT OF SAID HEAD SECTION WITH SAID TAIL SECTION DETACHED THEREFROM;
Claim 2
Dependent Claim
152 words
AN EXTENSIBLE BELT CONVEYOR FOR CONVEYING DISINTEGRATED MINED MATERIAL, SAID CONVEYOR COMPRISING: A SUPPORTING FRAME HAVING A HEAD SECTION AND A TAIL SECTION DETACHABLY CONNECTED TO SAID HEAD SECTION FOR CONJOINED MOVEMENT WITH SAID HEAD SECTION; TRACTION MEANS SUPPORTING SAID HEAD SECTION FOR EFFECTING MOVEMENT OF SAID HEAD SECTION; GUIDE MEANS UPON SAID HEAD SECTION AND SAID TAIL SECTION FOR GUIDING AN ENDLESS BELT LONGITUDINALLY ON SAID HEAD SECTION AND SAID TAIL SECTION; STORAGE MEANS UPON SAID HEAD SECTION FOR STORING A PORTION OF AN ENDLESS BELT AND VARYING THE EFFECTIVE LENGTH OF THE ENDLESS BELT UPON MOVEMENT OF SAID HEAD SECTION WITH SAID TAIL SECTION DETACHED THEREFROM; AN ENDLESS BELT LONGITUDINALLY ON SAID HEAD SECTION AND SAID TAIL SECTION FOR LONGITUDINAL MOVEMENT THEREON GUIDED BY SAID GUIDE MEANS AND ON SAID STORAGE MEANS TO BE VARIABLE IN EFFECTIVE LENGTH UPON MOVEMENT OF SAID HEAD SECTION WITH SAID TAIL SECTION DETACHED THEREFROM;
References Cited (Backward Citations)
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Cited
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US2863553A
Cited
US2858933A
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US2862604A
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US3039596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |