Patent US3200939A successfully refreshed from Google Patents.
US3200939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt conveyor
Assignee: Consolidation Coal Co
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Filing: 1964-02-17
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Granted: 1965-08-17
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 William N Poundstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:16
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/10; B65G39/12; B65G39/14; B65G39/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A SELF-ALIGNING FLEXIBLE TROUGHED IDLER ROLLER ASASMBLY THE COMBINATION COMPRISING A PAIR OF IDLER ROLLER SUPPORTING MEMBERS POSITIONED IN SPACED RELATION TO EACH OTHER AND HAVING FRONE END PORTIONS AND REAR END PORTIONS, A BASE MEMBER SECURED AT ITS ENDS TO A PAIR OF SPACED FLEXIBLE STRANDS AND EXTENDING LATERALLY THEREBETWEEN, SAID SUPPORTING MEMBER EACH PIVOTALLY SECURED TO SAID BASE MEMBER INTERMEDIATE SAID END PORTIONS, A FLEXIBLE TROUGHED IDLER ROLLER CONNECTED TO BOTH OF SAID SUPPORTING MEMBERS ADJACENT SAID FRONT END PORTIONS AND EXTENDING THEREBETWEEN, AND A SPACER MEMBER CONNECTED TO SAID SUPPORTING MEMBERS ADJACENT SAID REAR END PORTIONS, SAID SUPPORTING MEMBERS ADAPTED TO PIVOT LATERALLY RELATIVE TO SAID BASE MEMBER AND MOVE DOWNWARDLY UPON LATERAL DEVIATION OF A CONVEYOR BELT SUPPORTED BY SAID IDLER ROLLER SO THAT SAID IDLER ROLLER URGES SAID CONVEYOR BELT IN A DIRECTION OPPOSITE TO SAID LATERAL DEVIATION.
Claim 2
Dependent Claim
144 words
IN A SELF-ALIGNING FLEXIBLE TROUGHED IDLER ROLLER ASASMBLY THE COMBINATION COMPRISING A PAIR OF IDLER ROLLER SUPPORTING MEMBERS POSITIONED IN SPACED RELATION TO EACH OTHER AND HAVING FRONE END PORTIONS AND REAR END PORTIONS, A BASE MEMBER SECURED AT ITS ENDS TO A PAIR OF SPACED FLEXIBLE STRANDS AND EXTENDING LATERALLY THEREBETWEEN, SAID SUPPORTING MEMBER EACH PIVOTALLY SECURED TO SAID BASE MEMBER INTERMEDIATE SAID END PORTIONS, A FLEXIBLE TROUGHED IDLER ROLLER CONNECTED TO BOTH OF SAID SUPPORTING MEMBERS ADJACENT SAID FRONT END PORTIONS AND EXTENDING THEREBETWEEN, AND A SPACER MEMBER CONNECTED TO SAID SUPPORTING MEMBERS ADJACENT SAID REAR END PORTIONS, SAID SUPPORTING MEMBERS ADAPTED TO PIVOT LATERALLY RELATIVE TO SAID BASE MEMBER AND MOVE DOWNWARDLY UPON LATERAL DEVIATION OF A CONVEYOR BELT SUPPORTED BY SAID IDLER ROLLER SO THAT SAID IDLER ROLLER URGES SAID CONVEYOR BELT IN A DIRECTION OPPOSITE TO SAID LATERAL DEVIATION.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |