US3147650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll adjusting gear for rolling mills and like applications
Assignee: Davy Loewy Ltd
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Filing: 1961-04-25
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Granted: 1964-09-08
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Allen Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:11
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/16; B21B31/20; B21B31/22; B21B31/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19642; Y10T74/1966; Y10T74/19665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A ROLLING MILL SCREWDOWN DRIVE COMPRISING A ROLLING MILL HOUSING, A SCREW THREADED INTO SAID HOUSING, ROTARY DRIVE MEANS FOR SAID SCREW, A DRIVE SHAFT COUPLED TO SAID DRIVE MEANS, A DRIVEN SHAFT COUPLED TO SAID SCREW, A FIRST GEAR AND A SECOND GEAR SPACED APART AXIALLY ON SAID DRIVEN SHAFT AND EACH FREELY ROTATABLE ON SAID DRIVEN SHAFT, A TOOTHED CLUTCH MEMBER SPLINED TO SAID DRIVEN SHAFT AND MOVABLE AXIALLY BETWEEN SAID FIRST AND SECOND GEARS FOR COUPLING SAID FIRST GEAR AND SAID SECOND GEAR ALTERNATIVELY TO SAID DRIVEN SHAFT, GEAR MEANS, FOR CONTINUOUSLY DRIVING SAID FIRST GEAR FROM SAID DRIVE SHAFT, AND A GEAR TRAIN FOR CONTINUOUSLY DRIVING SAID SECOND GEAR FROM SAID DRIVE SHAFT, SAID GEAR MEANS AND TRAIN DRIVING SAID FIRST AND SECOND GEAR IN THE SAME DIRECTION
Claim 2
Dependent Claim
132 words
A ROLLING MILL SCREWDOWN DRIVE COMPRISING A ROLLING MILL HOUSING, A SCREW THREADED INTO SAID HOUSING, ROTARY DRIVE MEANS FOR SAID SCREW, A DRIVE SHAFT COUPLED TO SAID DRIVE MEANS, A DRIVEN SHAFT COUPLED TO SAID SCREW, A FIRST GEAR AND A SECOND GEAR SPACED APART AXIALLY ON SAID DRIVEN SHAFT AND EACH FREELY ROTATABLE ON SAID DRIVEN SHAFT, A TOOTHED CLUTCH MEMBER SPLINED TO SAID DRIVEN SHAFT AND MOVABLE AXIALLY BETWEEN SAID FIRST AND SECOND GEARS FOR COUPLING SAID FIRST GEAR AND SAID SECOND GEAR ALTERNATIVELY TO SAID DRIVEN SHAFT, GEAR MEANS, FOR CONTINUOUSLY DRIVING SAID FIRST GEAR FROM SAID DRIVE SHAFT, AND A GEAR TRAIN FOR CONTINUOUSLY DRIVING SAID SECOND GEAR FROM SAID DRIVE SHAFT, SAID GEAR MEANS AND TRAIN DRIVING SAID FIRST AND SECOND GEAR IN THE SAME DIRECTION
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |