Patent US3198318A successfully refreshed from Google Patents.
US3198318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Idler roll assembly
Assignee: Continental Conveyor and Equipment Co Inc
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Filing: 1964-04-20
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Granted: 1965-08-03
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Billy H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:40
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/09; F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C33/00; F16C33/72; F16C33/76; F16C33/80; F16C2326/00; F16C2326/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
IN AN IDLER ROLL ASSEMBLY FOR A BELT CONVEYOR IN WHICH THE ENDS OF THE IDLER ROLL ARE SUPPORTED BY UPSTANDING FRAME MEMBERS: (A) A SHAFT EXTENDING THROUGH SAID ROLL AND HAVING THREADED END PORTIONS, (B) A SUPPORTING NUT THREADEDLY ENGAGING EACH OF SAID THREADED END PORTIONS, (C) BEARING UNITS MOUNTED BETWEEN THE ROLL AND THE SHAFT INWARDLY OF THE ENDS OF EACH SUPPORTING NUT FOR SUPPORTING THE ROLL FOR ROTATION ABOUT SAID SHAFT, (D) A WASHER SURROUNDING AND CARRIED BY SAID SHAFT BETWEEN EACH NUT AND THE BEARING UNIT ADJACENT THERETO, (E) A RESILIENT SEAL CARRIED BY SAID ROLL AND HAVING AN ANNULAR LIP IN POSITION TO SURROUND AND SLIDABLY ENGAGE EACH NUT OUTWARDLY OF SAID WASHER TO DEFINE WITH THE ADJACENT PORTIONS OF SAID NUT AND WASHER AN INNER LABYRINTH SEAL, (F) AN OUTER LABYRINTH SEAL BETWEEN EACH NUT AND AN ADJACENT PORTION OF SAID ROLL, (G) AN OUTWARDLY PROJECTING LUG CARRIED BY EACH NUT IN POSITION TO EXTEND ALONGSIDE THE UPSTANDING FRAME MEMBER ADJACENT THERETO, AND (H) A RETAINING ELEMENT SECURING EACH LUG TO THE FRAME MEMBER ADJACENT THERETO TO PROVIDE POSITIVE HOLDING OF THE ROLL IN SAID FRAME MEMBERS.
Claim 2
Dependent Claim
193 words
IN AN IDLER ROLL ASSEMBLY FOR A BELT CONVEYOR IN WHICH THE ENDS OF THE IDLER ROLL ARE SUPPORTED BY UPSTANDING FRAME MEMBERS: (A) A SHAFT EXTENDING THROUGH SAID ROLL AND HAVING THREADED END PORTIONS, (B) A SUPPORTING NUT THREADEDLY ENGAGING EACH OF SAID THREADED END PORTIONS, (C) BEARING UNITS MOUNTED BETWEEN THE ROLL AND THE SHAFT INWARDLY OF THE ENDS OF EACH SUPPORTING NUT FOR SUPPORTING THE ROLL FOR ROTATION ABOUT SAID SHAFT, (D) A WASHER SURROUNDING AND CARRIED BY SAID SHAFT BETWEEN EACH NUT AND THE BEARING UNIT ADJACENT THERETO, (E) A RESILIENT SEAL CARRIED BY SAID ROLL AND HAVING AN ANNULAR LIP IN POSITION TO SURROUND AND SLIDABLY ENGAGE EACH NUT OUTWARDLY OF SAID WASHER TO DEFINE WITH THE ADJACENT PORTIONS OF SAID NUT AND WASHER AN INNER LABYRINTH SEAL, (F) AN OUTER LABYRINTH SEAL BETWEEN EACH NUT AND AN ADJACENT PORTION OF SAID ROLL, (G) AN OUTWARDLY PROJECTING LUG CARRIED BY EACH NUT IN POSITION TO EXTEND ALONGSIDE THE UPSTANDING FRAME MEMBER ADJACENT THERETO, AND (H) A RETAINING ELEMENT SECURING EACH LUG TO THE FRAME MEMBER ADJACENT THERETO TO PROVIDE POSITIVE HOLDING OF THE ROLL IN SAID FRAME MEMBERS.
References Cited (Backward Citations)
US2702868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |