US3194387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Troughing idler roller assembly for belt conveyors
Assignee: CHRISTOPHER COAL CO
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Filing: 1961-12-20
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Granted: 1965-07-13
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Expires: 1981-12-20
Abstract
No abstract record available.
Inventors
- 👤 William N Poundstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:56
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/10; B65G39/12; B65G39/14; B65G39/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A TROUGHING IDLER ROLLER ASSEMBLY COMPRISING A SHAFT MEMBER TRANSVERSELY SPANNING A PAIR OF LONGITUDINALLY EXTENDING, SPACED FLEXIBLE SIDE FRAME MEMBERS, SAID SHAFT MEMBER HAVING END PORTIONS SECURED TO EACH OF SAID SIDE FRAME MEMBERS, SAID SHAFT MEMBER BEING FORMED OF FLEXIBLE MATERIAL FOR DEEPING OF SAID IDLER ROLLER TROUGH BY MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER, A PLURALITY OF ROLLER MEMBERS ROTATABLY SUPPORTED IN END TO END RELATION BY SAID SHAFT MEMBER AND AXIALLY FIXED RELATIVE TO SAID SHAFT MEMBER, SAID ROLLER MEMBERS INCLUDING RIGID CYLINDERICAL TUBES SUPPORTED FOR ROTATION RELATIVE TO SAID SHAFT MEMBER BY RESILIENT, DEFORMABLE BEARING CARRIERS, SAID BEARING CARRIERS FORMING END WALLS FOR SAID ROLLER MEMBERS, SAID BEARING CARRIERS OF ADJACENT ROLLER MEMBERS ARRANGED TO ABUT EACH OTHER UPON MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER TO THEREBY LIMIT THE DEPTH OF SAID IDLER ROLLER TROUGH BY INHIBITING THE MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER AT A MINIMUM DISTANCE FROM EACH OTHER.
Claim 2
Dependent Claim
165 words
A TROUGHING IDLER ROLLER ASSEMBLY COMPRISING A SHAFT MEMBER TRANSVERSELY SPANNING A PAIR OF LONGITUDINALLY EXTENDING, SPACED FLEXIBLE SIDE FRAME MEMBERS, SAID SHAFT MEMBER HAVING END PORTIONS SECURED TO EACH OF SAID SIDE FRAME MEMBERS, SAID SHAFT MEMBER BEING FORMED OF FLEXIBLE MATERIAL FOR DEEPING OF SAID IDLER ROLLER TROUGH BY MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER, A PLURALITY OF ROLLER MEMBERS ROTATABLY SUPPORTED IN END TO END RELATION BY SAID SHAFT MEMBER AND AXIALLY FIXED RELATIVE TO SAID SHAFT MEMBER, SAID ROLLER MEMBERS INCLUDING RIGID CYLINDERICAL TUBES SUPPORTED FOR ROTATION RELATIVE TO SAID SHAFT MEMBER BY RESILIENT, DEFORMABLE BEARING CARRIERS, SAID BEARING CARRIERS FORMING END WALLS FOR SAID ROLLER MEMBERS, SAID BEARING CARRIERS OF ADJACENT ROLLER MEMBERS ARRANGED TO ABUT EACH OTHER UPON MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER TO THEREBY LIMIT THE DEPTH OF SAID IDLER ROLLER TROUGH BY INHIBITING THE MOVEMENT OF SAID SIDE FRAME MEMBERS TOWARD EACH OTHER AT A MINIMUM DISTANCE FROM EACH OTHER.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |