US3138979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction and control of planetary mills
Assignee: T Sendzimir Inc
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Filing: 1959-07-29
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Granted: 1964-06-30
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Tadeusz Sendzimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
B; B21; B21B; B21B13/00; B21B13/18; B21B13/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF OPERATING A PLANETARY MILL HAVING FEEDING MEANS AND PLANETARY ASSEMBLIES COMPRISING EACH A SERIES OF WORKING ROLLS OPERATING AROUND BACKING MEANS, THERE BEING A PLANETARY ASSEMBLY ON EACH SIDE OF A WORK PIECE PASSING THROUGH SAID MILL, COMPRISING THE STEPS OF EFFECTING SCREWDOWN IN SAID MILL BY MOVING SAID PLANETARY ASSEMBLIES TOWARD AND AWAY FROM EACH OTHER BY SUBSTANTIALLY EQUAL AND OPPOSITE MOVEMENTS WHEREBY TO MAINTAIN THE CENTRAL PLANE OF SAID WORK PIECE IN A SUBSTANTIALLY CONSTANT POSITION DESPITE CHANGES IN SCREWDOWN, AND MOVING SAID PLANETARY ASSEMBLIES IN THE SAME DIRECTION SO AS TO MAINTAIN THE SCREWDOWN WHILE SHIFTING THE PLANE OF SYMMETRY OF THE MILL AS DETERMINED BY THE POSITIONS OF SAID PLANETARY ASSEMBLIES.
Claim 2
Independent Claim
118 words
A METHOD OF OPERATING A PLANETARY MILL HAVING FEEDING MEANS AND PLANETARY ASSEMBLIES COMPRISING EACH A SERIES OF WORKING ROLLS OPERATING AROUND BACKING MEANS, THERE BEING A PLANETARY ASSEMBLY ON EACH SIDE OF A WORK PIECE PASSING THROUGH SAID MILL, COMPRISING THE STEPS OF EFFECTING SCREWDOWN IN SAID MILL BY MOVING SAID PLANETARY ASSEMBLIES TOWARD AND AWAY FROM EACH OTHER BY SUBSTANTIALLY EQUAL AND OPPOSITE MOVEMENTS WHEREBY TO MAINTAIN THE CENTRAL PLANE OF SAID WORK PIECE IN A SUBSTANTIALLY CONSTANT POSITION DESPITE CHANGES IN SCREWDOWN, AND MOVING SAID PLANETARY ASSEMBLIES IN THE SAME DIRECTION SO AS TO MAINTAIN THE SCREWDOWN WHILE SHIFTING THE PLANE OF SYMMETRY OF THE MILL AS DETERMINED BY THE POSITIONS OF SAID PLANETARY ASSEMBLIES.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |