US3232137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trunnion drive grinding mill
Assignee: Allis Chalmers Corp
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Filing: 1963-03-20
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Granted: 1966-02-01
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Ervin J Klovers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:39
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19051; Y10T74/19056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A DRIVE SYSTEM FOR TRUNNION DRIVEN GRINDING MILLS AND THE LIKE, COMPRISING, A TRUNNION GEAR MOUNTED ON A SHAFT ADAPTED TO TRANSMIT DRIVING TORQUE, TWO ELECTRIC MOTORS ARRANGED AXIALLY PARALLEL WITH THE AXIS OF THE TRUNNION GEAR SHAFT AND WITH SAID AXIS BETWEEN SAID MOTORS, EACH MOTOR HAVING A ROTOR DRIVINGLY CONNECTED ON ONE AXIAL END TO THE TRUNNION GEARS THROUGH SEPARATE GEARING, AND IN WHICH: BOTH MOTORS ARE ON ONE AND THE SAME SIDE OF THE TRUNNION GEAR, EACH MOTOR HAS A STATOR WITH AN AXIAL LENGTH SHORTER THAN ITS DIAMETER, AND EACH SAID ROTOR BEING CANTILEVER SUPPORTED SOLELY ON SAID END CONNECTED TO SAID TRUNNION GEAR.
Claim 2
Dependent Claim
108 words
A DRIVE SYSTEM FOR TRUNNION DRIVEN GRINDING MILLS AND THE LIKE, COMPRISING, A TRUNNION GEAR MOUNTED ON A SHAFT ADAPTED TO TRANSMIT DRIVING TORQUE, TWO ELECTRIC MOTORS ARRANGED AXIALLY PARALLEL WITH THE AXIS OF THE TRUNNION GEAR SHAFT AND WITH SAID AXIS BETWEEN SAID MOTORS, EACH MOTOR HAVING A ROTOR DRIVINGLY CONNECTED ON ONE AXIAL END TO THE TRUNNION GEARS THROUGH SEPARATE GEARING, AND IN WHICH: BOTH MOTORS ARE ON ONE AND THE SAME SIDE OF THE TRUNNION GEAR, EACH MOTOR HAS A STATOR WITH AN AXIAL LENGTH SHORTER THAN ITS DIAMETER, AND EACH SAID ROTOR BEING CANTILEVER SUPPORTED SOLELY ON SAID END CONNECTED TO SAID TRUNNION GEAR.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |